Volumes | Turbo Expo: Power for Land, Sea, and Air | American Society of Mechanical Engineers Digital Collection

Topics: Compressors , Design , Dynamic stability , Finite element analysis , High pressure (Physics) , Rotors , Clearances (Engineering) , Dampers , Stability , Leakage

Dynamics Design of the Aero-Engine Rotor Joint Structures Based on Experimental and Numerical Study

Shuguo Liu, Jun Wang, Jie Hong, Dayi Zhang

GT 2010; 49-60https://doi.org/10.1115/GT2010-22199

Abstract

View Articletitled, Dynamics Design of the Aero-Engine Rotor Joint Structures Based on Experimental and Numerical Study

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Topics: Aircraft engines , Design , Dynamics (Mechanics) , Rotors , Stress , Stiffness , Bolted joints , Computer simulation , Cycles , Deformation

Modeling Issues Associated With a Lip Seal Operating on a Textured Shaft

Wei Li, Lyndon Scott Stephens

GT 2010; 61-67https://doi.org/10.1115/GT2010-22223

Abstract

View Articletitled, Modeling Issues Associated With a Lip Seal Operating on a Textured Shaft

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Topics: Cavitation , Computer simulation , Deformation , Elasticity , Elastomers , Finite element methods , Fluid pressure , Lubricants , Lubrication , Materials properties

Friction Factor Behavior From Flat-Plate Tests of Smooth and Hole-Pattern Roughened Surfaces With Supply Pressures up to 84 Bars

Dara W. Childs, Bassem Kheireddin, Stephen Phillips

GT 2010; 69-79https://doi.org/10.1115/GT2010-22227

Abstract

View Articletitled, Friction Factor Behavior From Flat-Plate Tests of Smooth and Hole-Pattern Roughened Surfaces With Supply Pressures up to 84 Bars

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Topics: Flat plates , Friction , Reynolds number , Pressure measurement , Plates (structures) , Clearances (Engineering) , Flow (Dynamics) , Honeycomb structures , Oscillations , Pressure

Dynamic Response of a Rotor-Hybrid Gas Bearing System Due to Base Induced Periodic Motions

Luis San Andre´s, Keun Ryu, Yaying Niu

GT 2010; 81-90https://doi.org/10.1115/GT2010-22277

Abstract

View Articletitled, Dynamic Response of a Rotor-Hybrid Gas Bearing System Due to Base Induced Periodic Motions

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Topics: Dynamic response , Gas bearings , Rotors , Bearings , Excitation , Bending (Stress) , Combustion , Damage , Engines , Failure

A Nonlinear Model of Rotor-Bearing-Seal System Associated With Leakage Through the Labyrinth Seal

Wei Zhe Wang, Ying Zheng Liu, Guang Meng

GT 2010; 91-100https://doi.org/10.1115/GT2010-22315

Abstract

View Articletitled, A Nonlinear Model of Rotor-Bearing-Seal System Associated With Leakage Through the Labyrinth Seal

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Topics: Bearings , Leakage , Rotors , Aerodynamics , Fluid-dynamic forces , Air flow , Cavities , Clearances (Engineering) , Rotordynamics , Whirls

Identification of Numerical Squeeze-Film Damper Models for Efficient Aeroengine Vibration Analysis

Keir Groves, Philip Bonello

GT 2010; 101-111https://doi.org/10.1115/GT2010-22393

Abstract

View Articletitled, Identification of Numerical Squeeze-Film Damper Models for Efficient Aeroengine Vibration Analysis

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Topics: Dampers , Vibration analysis , Bearings , Interpolation , Polynomials , Pressure , Boundary-value problems , Cavitation , Dynamic analysis , Gates (Closures)

Non-Linear Maneuver-Acceleration Analysis for Airborne Gas Turbine Engines

Theodore S. Brockett

GT 2010; 113-122https://doi.org/10.1115/GT2010-22435

Abstract

View Articletitled, Non-Linear Maneuver-Acceleration Analysis for Airborne Gas Turbine Engines

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Topics: Gas turbines , Aircraft , Clearances (Engineering) , Stress , Bearings , Algorithms , Rotors , Springs , Dampers , Deflection

Identification of Rotordynamic Force Coefficients of a Metal Mesh Foil Bearing Using Impact Load Excitations

Luis San Andre´s, Thomas Abraham Chirathadam

GT 2010; 123-133https://doi.org/10.1115/GT2010-22440

Abstract

View Articletitled, Identification of Rotordynamic Force Coefficients of a Metal Mesh Foil Bearing Using Impact Load Excitations

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Topics: Excitation , Foil bearings , Metals , Stress , Bearings , Stiffness , Damping , Rotation , Rotors , Compressors

A New Analysis Tool Assessment for Rotordynamic Modeling of Gas Foil Bearings

Samuel A. Howard, Luis San Andre´s

GT 2010; 135-145https://doi.org/10.1115/GT2010-22508

Abstract

View Articletitled, A New Analysis Tool Assessment for Rotordynamic Modeling of Gas Foil Bearings

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Topics: Foil bearings , Modeling , Rotors , Turbomachinery , Bearings , Deformation , Dynamics (Mechanics) , Film thickness , Geometry , High temperature

Approximation of Critical Speeds for Shafts With Thermal Gradients Using a Rotating Heat Rig

Michael Mixa, Ali P. Gordon

GT 2010; 147-155https://doi.org/10.1115/GT2010-22522

Abstract

View Articletitled, Approximation of Critical Speeds for Shafts With Thermal Gradients Using a Rotating Heat Rig

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Topics: Approximation , Heat , Temperature gradient , Operating temperature , Rotation , Turbine blades , Air flow , Bearings , Blades , Coolants

Finite Length Squeeze Film Dampers With Air Entrainment: Non-Dimensional Maps and Their Applicability

Jorge E. Torres, Sergio E. Di´az

GT 2010; 157-166https://doi.org/10.1115/GT2010-22561

Abstract

View Articletitled, Finite Length Squeeze Film Dampers With Air Entrainment: Non-Dimensional Maps and Their Applicability

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Topics: Air entrainment , Bearings , Dampers , Finite element methods , Lubricants

Rotordynamic Analysis Method of Small Turbo-Fan Engine Based on Finite Element Models

Jie Hong, Meng Chen, Yanhong Ma, Liming Zhang

GT 2010; 167-174https://doi.org/10.1115/GT2010-22565

Abstract

View Articletitled, Rotordynamic Analysis Method of Small Turbo-Fan Engine Based on Finite Element Models

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Topics: Engines , Finite element model , Turbofans , Rotors , Compressors , Rotordynamics , Sensitivity analysis , Stiffness , Aircraft engines , Disks

CFD Prediction and Test Results of Stiffness and Damping Coefficients for Brush-Labyrinth Gas Seals

Alexander O. Pugachev, Martin Deckner

GT 2010; 175-185https://doi.org/10.1115/GT2010-22667

Abstract

View Articletitled, CFD Prediction and Test Results of Stiffness and Damping Coefficients for Brush-Labyrinth Gas Seals

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Topics: Computational fluid dynamics , Damping , Porous materials , Stiffness

Development of a 125KW AMB Expander/Generator for Waste Heat Recovery

Lawrence A. Hawkins, Lei Zhu, Eric J. Blumber

GT 2010; 187-194https://doi.org/10.1115/GT2010-22763

Abstract

View Articletitled, Development of a 125KW AMB Expander/Generator for Waste Heat Recovery

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Topics: Generators , Heat recovery , Magnetic bearings , Heat , Biogas , Boilers , Design , Electronic packages , Exhaust systems , Fluids

Multistage Coupling of Eight Bladed Discs on a Solid Shaft

Romuald Rza˛dkowski, Marcin Drewczynski

GT 2010; 195-205https://doi.org/10.1115/GT2010-22803

Abstract

View Articletitled, Multistage Coupling of Eight Bladed Discs on a Solid Shaft

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Topics: Disks , Blades , Rotors , Deflection , Dynamics (Mechanics) , Excitation , Finite element analysis , Free vibrations , Mode shapes , Resonance

Train Torsional Vibrations: Monitoring System Based on Model Result

Mateusz Golebiowski, Lorenzo Naldi, Valerio Rossi, Stefano Ponticelli

GT 2010; 207-216https://doi.org/10.1115/GT2010-22908

Abstract

View Articletitled, Train Torsional Vibrations: Monitoring System Based on Model Result

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Topics: Monitoring systems , Trains , Vibration , Machinery , String , Torque , Computational methods , Control systems , Durability , Dynamic systems

Torsional Vibrations Caused by Geared Coupling in a Shaft Train Driven by a Steam Turbine

Paolo Pennacchi, Andrea Vania, Franco Frattaroli

GT 2010; 217-226https://doi.org/10.1115/GT2010-22941

Abstract

View Articletitled, Torsional Vibrations Caused by Geared Coupling in a Shaft Train Driven by a Steam Turbine

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Topics: Steam turbines , Trains , Vibration , Machinery , Excitation , Probes

Case History of Pad Fluttering in a Tilting-Pad Journal Bearing

Paolo Pennacchi, Andrea Vania, Steven Chatterton, Emanuel Pesatori

GT 2010; 227-233https://doi.org/10.1115/GT2010-22946

Abstract

View Articletitled, Case History of Pad Fluttering in a Tilting-Pad Journal Bearing

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Topics: Journal bearings , Vibration , Turbines , Whirls , Bearings , Emission spectroscopy , Errors , Excitation , Machinery , Rotors

Numerical Calculation of the Structural Stiffness of Gas Foil Bearings

Haipeng Geng, Shemiao Qi, Lie Yu

GT 2010; 235-240https://doi.org/10.1115/GT2010-22954

Abstract

View Articletitled, Numerical Calculation of the Structural Stiffness of Gas Foil Bearings

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Topics: Foil bearings , Stiffness , Finite element methods , Bearings , Boundary-value problems , Damping , Deformation , Dynamics (Mechanics) , Finite element analysis , Lubrication

Experimental Analyses of a First Generation Foil Bearing: Start-Up Torque and Dynamic Coefficients

Laurent Rudloff, Mihai Arghir, Olivier Bonneau, Pierre Matta

GT 2010; 241-251https://doi.org/10.1115/GT2010-22966

Abstract

View Articletitled, Experimental Analyses of a First Generation Foil Bearing: Start-Up Torque and Dynamic Coefficients

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Topics: Experimental analysis , Foil bearings , Torque , Bearings , Excitation , Rotation , Stress , Ball bearings , Ceramics , Damping

Thermal Management and Rotordynamic Performance of a Hot Rotor-Gas Foil Bearings System: Part 1—Measurements

Luis San Andre´s, Tae Ho Kim, Keun Ryu

GT 2010; 253-262https://doi.org/10.1115/GT2010-22981

Abstract

View Articletitled, Thermal Management and Rotordynamic Performance of a Hot Rotor-Gas Foil Bearings System: Part 1—Measurements

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Topics: Foil bearings , Rotors , Thermal management , Temperature , Bearings , Cooling , Flow (Dynamics) , Friction , Geometry , Heat

Thermal Management and Rotordynamic Performance of a Hot Rotor-Gas Foil Bearings System: Part 2—Predictions Versus Test Data

Luis San Andre´s, Tae Ho Kim, Keun Ryu

GT 2010; 263-271https://doi.org/10.1115/GT2010-22983

Abstract

View Articletitled, Thermal Management and Rotordynamic Performance of a Hot Rotor-Gas Foil Bearings System: Part 2—Predictions Versus Test Data

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Topics: Foil bearings , Rotors , Thermal management , Temperature , Bearings , Cooling , Flow (Dynamics) , Damping , Dynamic response , Film thickness

Destabilization of Forward Rub in Rotor Magnetic Bearing Systems Using Actively Controlled Auxiliary Bearings

Iain S. Cade, M. Necip Sahinkaya, Clifford R. Burrows, Patrick S. Keogh

GT 2010; 273-282https://doi.org/10.1115/GT2010-23028

Abstract

View Articletitled, Destabilization of Forward Rub in Rotor Magnetic Bearing Systems Using Actively Controlled Auxiliary Bearings

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Topics: Bearings , Magnetic bearings , Rotors , Design , Levitation , Safety , Stators

Instability and Chaos of a Flexible Rotor Ball Bearing System: An Investigation on the Influence of Rotating Imbalance and Bearing Clearance

T. C. Gupta, K. Gupta, D. K. Sehgal

GT 2010; 283-292https://doi.org/10.1115/GT2010-23035

Abstract

View Articletitled, Instability and Chaos of a Flexible Rotor Ball Bearing System: An Investigation on the Influence of Rotating Imbalance and Bearing Clearance

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Topics: Ball bearings , Bearings , Chaos , Clearances (Engineering) , Rotors , Excitation , Bifurcation , Dynamic response , Eigenvalues , Stability

A Numerical Study on Ground-Based Vibration Response of a Spinning Cyclic Symmetric Rotor With Cracks

I. Y. Shen

GT 2010; 293-298https://doi.org/10.1115/GT2010-23051

Abstract

View Articletitled, A Numerical Study on Ground-Based Vibration Response of a Spinning Cyclic Symmetric Rotor With Cracks

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Topics: Fracture (Materials) , Rotors , Spin (Aerodynamics) , Spinning (Textile) , Vibration , Resonance , Disks , Algorithms , Computer simulation , Rotating disks

Multiple Smart Material Applications Using SMA and MR Fluid Damper for Rotor Vibration Control

T. S. Aravindhan, K. Gupta

GT 2010; 299-308https://doi.org/10.1115/GT2010-23084

Abstract

View Articletitled, Multiple Smart Material Applications Using SMA and MR Fluid Damper for Rotor Vibration Control

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Topics: Dampers , Fluids , Rotor vibration , Smart materials , Rotors , Engineering simulation , Simulation , Degrees of freedom , Finite element methods , Resonance

Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Model Rotors

Norihisa Anegawa, Hiroyuki Fujiwara, Osami Matsushita

GT 2010; 309-318https://doi.org/10.1115/GT2010-23091

Abstract

View Articletitled, Vibration Diagnosis Featuring Blade-Shaft Coupling Effect of Turbine Model Rotors

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Topics: Blades , Rotors , Turbines , Vibration , Resonance , Anisotropy , Bearings , Deformation , Flow (Dynamics) , Gravity (Force)

Theoretical and Experimental Study on Stability of Rotor System With Cylindrical Bearing and Elliptical Bearing

Yongliang Wang, Zhansheng Liu, Guanghui Zhang, Liquan Sun

GT 2010; 319-326https://doi.org/10.1115/GT2010-23120

Abstract

View Articletitled, Theoretical and Experimental Study on Stability of Rotor System With Cylindrical Bearing and Elliptical Bearing

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Topics: Bearings , Rotors , Stability , Whirls

Rotor Dynamic Analysis Requirements in API Standards With Case Studies

Bader K. Al-Jughaiman

GT 2010; 327-337https://doi.org/10.1115/GT2010-23127

Abstract

View Articletitled, Rotor Dynamic Analysis Requirements in API Standards With Case Studies

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Topics: American Petroleum Institute , Dynamic analysis , Rotors , Motors , Compressors , Electromagnetic induction , Design , Gas compressors , Gears , Machinery

Study on Rubbing Failure Between Fan Vanes and Spacer Ring of a Turbo-Fan Engine

Dayi Zhang, Meng Chen, Jie Hong, Miansheng Dou

GT 2010; 339-347https://doi.org/10.1115/GT2010-23152

Abstract

View Articletitled, Study on Rubbing Failure Between Fan Vanes and Spacer Ring of a Turbo-Fan Engine

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Topics: Engines , Failure , Turbofans , Rotors , Stators , Clearances (Engineering) , Computer simulation , Traveling waves , Failure mechanisms , Finite element model

Prediction of Aeroacoustic Resonance in Cavities of Hole-Pattern Stator Seals

David N. Liliedahl, Forrest L. Carpenter, Paul G. A. Cizmas

GT 2010; 349-361https://doi.org/10.1115/GT2010-23218

Abstract

View Articletitled, Prediction of Aeroacoustic Resonance in Cavities of Hole-Pattern Stator Seals

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Topics: Cavities , Resonance , Stators , Reynolds-averaged Navier–Stokes equations , Acoustics , Channel flow , Flow (Dynamics) , Cavity flows , Fluid dynamics , Fluids

Rotordynamic Performance of an Oil-Free Turbocharger Supported on Gas Foil Bearings: Effects of an Assembly Radial Clearance

Tae Ho Kim, Jangwon Lee, Chang Ho Kim, Yong-Bok Lee

GT 2010; 363-371https://doi.org/10.1115/GT2010-23243

Abstract

View Articletitled, Rotordynamic Performance of an Oil-Free Turbocharger Supported on Gas Foil Bearings: Effects of an Assembly Radial Clearance

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Topics: Clearances (Engineering) , Foil bearings , Manufacturing , Turbochargers , Bearings , Engines , Rotors , Deflection , Ignition , Lubricants

Force Feedback Control for Active Stabilization of Synchronous Whirl Orbits in Rotor Systems With Non-Linear Stiffness Elements

Matthew O. T. Cole, Chakkapong Chamroon, Prinya Ngamprapasom

GT 2010; 373-382https://doi.org/10.1115/GT2010-23246

Abstract

View Articletitled, Force Feedback Control for Active Stabilization of Synchronous Whirl Orbits in Rotor Systems With Non-Linear Stiffness Elements

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Topics: Force feedback , Rotors , Stiffness , Whirls , Feedback , Control equipment , Bearings , Clearances (Engineering) , Magnetic bearings , Stability

Theoretical Prediction of the Lift-Off Speed in Aerodynamic Compliant Foil Journal Bearings

Shemiao Qi, Y. S. Ho, Haipeng Geng, Lie Yu

GT 2010; 383-388https://doi.org/10.1115/GT2010-23267

Abstract

View Articletitled, Theoretical Prediction of the Lift-Off Speed in Aerodynamic Compliant Foil Journal Bearings

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Topics: Journal bearings , Bearings , Clearances (Engineering) , Rotors , Stress , Computational methods , Foil bearings , Lubrication

Nonlinear Dynamic Analysis of a Flexible Rod Fastening Rotor Bearing System

Heng Liu, Chen Li, Weimin Wang, Xiaobin Qi, Minqing Jing

GT 2010; 389-398https://doi.org/10.1115/GT2010-23368

Abstract

View Articletitled, Nonlinear Dynamic Analysis of a Flexible Rod Fastening Rotor Bearing System

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Topics: Bearings , Dynamic analysis , Rotors , Stability , Bifurcation , Tie rods , Hamilton's principle , Nonlinear dynamics , Stiffness , Stress

Experiments on the Transient Performance of an Adaptive Multi-Objective Controller for Rotating Machinery

M. Necip Sahinkaya, Abdul-Hadi G. Abulrub, Patrick S. Keogh, Clifford R. Burrows

GT 2010; 399-408https://doi.org/10.1115/GT2010-23482

Abstract

View Articletitled, Experiments on the Transient Performance of an Adaptive Multi-Objective Controller for Rotating Machinery

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Topics: Control equipment , Machinery , Transients (Dynamics) , Rotors , Bearings , Actuators , Adaptive control , Magnetic bearings , Rotor vibration

Application of Squeeze-Film Dampers to a Large Centrifugal Compressor

Edmund A. Memmott

GT 2010; 409-420https://doi.org/10.1115/GT2010-23553

Abstract

View Articletitled, Application of Squeeze-Film Dampers to a Large Centrifugal Compressor

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Topics: Compressors , Dampers , Bearings , Vibration , Design , Dynamic systems , Journal bearings , Rotors

Lateral Rotordynamic Analysis of a Large Alternator/Flywheel/Motor Train

Jawad Chaudhry, Tim Dimond, Amir Younan, Paul Allaire

GT 2010; 421-430https://doi.org/10.1115/GT2010-23585

Abstract

View Articletitled, Lateral Rotordynamic Analysis of a Large Alternator/Flywheel/Motor Train

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Topics: Engines , Flywheels , Motors , Trains , Rotors , Bearings , Vibration , American Petroleum Institute , Corrective actions , Damping

Modal Frequency Response of a Four-Pad Tilting Pad Bearing With Spherical Pivots, Finite Pivot Stiffness and Different Pad Preloads

Timothy W. Dimond, Amir A. Younan, Paul E. Allaire, John C. Nicholas

GT 2010; 431-442https://doi.org/10.1115/GT2010-23609

Abstract

View Articletitled, Modal Frequency Response of a Four-Pad Tilting Pad Bearing With Spherical Pivots, Finite Pivot Stiffness and Different Pad Preloads

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Topics: Bearings , Frequency response , Stiffness , Damping , Cooling , Degrees of freedom , Rotors , Clearances (Engineering) , Flow (Dynamics) , Fluid structure interaction

Design, Construction and Modeling of a Flexible Rotor Active Magnetic Bearing Test Rig

Simon E. Mushi, Zongli Lin, Paul E. Allaire

GT 2010; 443-452https://doi.org/10.1115/GT2010-23619

Abstract

View Articletitled, Design, Construction and Modeling of a Flexible Rotor Active Magnetic Bearing Test Rig

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Topics: Construction , Design , Magnetic bearings , Modeling , Rotors , Control equipment , Arches , Bearings , Compressors , Disks

A Comparison of the Steady-State and Dynamic Performance of First- and Second-Generation Foil Bearings

M. J. Conlon, A. Dadouche, W. M. Dmochowski, R. Payette, J.-P. Be´dard

GT 2010; 453-462https://doi.org/10.1115/GT2010-23683

Abstract

View Articletitled, A Comparison of the Steady-State and Dynamic Performance of First- and Second-Generation Foil Bearings

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Topics: Foil bearings , Steady state , Bearings , Damping , Stiffness , Stress , Dynamics (Mechanics) , Excitation , Manufacturing , Performance characterization

Identification and Prediction of Force Coefficients in a Five-Pad and Four-Pad Tilting Pad Bearing for Load-on-Pad and Load-Between-Pad Configurations

Adolfo Delgado, Giuseppe Vannini, Bugra Ertas, Michael Drexel, Lorenzo Naldi

GT 2010; 463-472https://doi.org/10.1115/GT2010-23802

Abstract

View Articletitled, Identification and Prediction of Force Coefficients in a Five-Pad and Four-Pad Tilting Pad Bearing for Load-on-Pad and Load-Between-Pad Configurations

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Topics: Bearings , Stress , Excitation , Rotors , Stiffness , Temperature , Damping , Lubrication

Model Based Shaft Crack Identification in Rotating Machinery

G. N. D. S. Sudhakar, A. S. Sekhar

GT 2010; 473-480https://doi.org/10.1115/GT2010-23812

Abstract

View Articletitled, Model Based Shaft Crack Identification in Rotating Machinery

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Topics: Fracture (Materials) , Machinery , Rotors

Fatigue, Fracture and Life Prediction

Failure Investigation of the 69 MW Gas Turbine of Combined Cycle Unit

Zdzislaw Mazur, Alejandro Herna´ndez-Rossette, Jesu´s Porcayo-Caldero´n

GT 2010; 481-489https://doi.org/10.1115/GT2010-22262

Abstract

View Articletitled, Failure Investigation of the 69 MW Gas Turbine of Combined Cycle Unit

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Topics: Blades , Combined cycles , Compressors , Corrosion , Failure , Gas turbines , High cycle fatigue , Stress

Fault Diagnosis and Failure Prediction by Thrust Load Analysis for a Turbocharger Thrust Bearing

Jizhong Zhang, Harold Sun, Liangjun Hu, Hong He

GT 2010; 491-498https://doi.org/10.1115/GT2010-22320

Abstract

View Articletitled, Fault Diagnosis and Failure Prediction by Thrust Load Analysis for a Turbocharger Thrust Bearing

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Topics: Failure , Fault diagnosis , Stress , Thrust , Thrust bearings , Turbochargers , Compressors , Flow (Dynamics) , Testing , Turbines

Fracture Mechanics Analysis of a Single Crystal Turbine Blade

X. Wu, W. Beres, Z. Zhang, P. A. S. Reed

GT 2010; 499-504https://doi.org/10.1115/GT2010-22355

Abstract

View Articletitled, Fracture Mechanics Analysis of a Single Crystal Turbine Blade

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Topics: Crystals , Fracture mechanics , Turbine blades , Fracture (Materials) , Blades , Fatigue cracks , Stress , Anisotropy , Computer software , Engineering simulation

Effect of Blade Geometry and Foreign Object Kinetic Energy on Blades Damage

Mickhail S. Nikhamkin, Leonid V. Voronov, Irina V. Semenova

GT 2010; 505-510https://doi.org/10.1115/GT2010-22425

Abstract

View Articletitled, Effect of Blade Geometry and Foreign Object Kinetic Energy on Blades Damage

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Topics: Blades , Compressors , Damage , Finite element methods , Geometry , Kinetic energy

A Creep Rupture Time Model for Anisotropic Creep-Damage of Transversely-Isotropic Materials

Calvin M. Stewart, Ali P. Gordon

GT 2010; 511-520https://doi.org/10.1115/GT2010-22532

Abstract

View Articletitled, A Creep Rupture Time Model for Anisotropic Creep-Damage of Transversely-Isotropic Materials

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Topics: Anisotropy , Creep , Damage , Rupture , Damage mechanics , Modeling , Aerospace industry , Industrial gases , Robustness , Stress

Validation of a Multi-Axial Fatigue Life Prediction Using Maximum Shear Experimental Results

Onome Scott-Emuakpor, Tommy George, Charles Cross, John Wertz, M.-H. Herman Shen

GT 2010; 521-527https://doi.org/10.1115/GT2010-22547

Abstract

View Articletitled, Validation of a Multi-Axial Fatigue Life Prediction Using Maximum Shear Experimental Results

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Topics: Fatigue life , Shear (Mechanics) , Torsion , Fatigue , Stress , Cycles , Density , Shear stress

An Energy-Based Experimental-Analytical Torsional Fatigue Life-Prediction Method

John N. Wertz, M.-H. Herman Shen, Tommy George, Charles Cross, Onome Scott-Emuakpor

GT 2010; 529-537https://doi.org/10.1115/GT2010-22647

Abstract

View Articletitled, An Energy-Based Experimental-Analytical Torsional Fatigue Life-Prediction Method

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Topics: Fatigue , Fatigue life , Shear (Mechanics) , Cycles , Density , Fatigue testing , Fracture (Materials) , Fracture (Process) , Gas turbines , Materials properties

Rotor Components Life Evaluation Validated by Field Operation Data

Mauro Maccio`, Adelmo Rebizzo, Laura Traversone, Luca Bordo

GT 2010; 539-548https://doi.org/10.1115/GT2010-22741

Abstract

View Articletitled, Rotor Components Life Evaluation Validated by Field Operation Data

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Topics: Cycles , Design , Engines , Finite element methods , Finite element model , Gas turbines , Life extension , Rotors

Fracture Analysis of a First Stage Turbine Blade

Reza Ghorbani, Saeed Asadikouhanjani, Karsten Kusterer, Anis Haj Ayed

GT 2010; 549-555https://doi.org/10.1115/GT2010-22802

Abstract

View Articletitled, Fracture Analysis of a First Stage Turbine Blade

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Topics: Fracture (Materials) , Turbine blades , Blades , Failure , Gas turbines , Crack propagation , Damage , Fatigue , Nickel , Pressure

A New Finite Element Approach to Biaxial Fatigue Life Prediction in Gas Turbine Engine

Wasim Tarar, M.-H. Herman Shen

GT 2010; 557-567https://doi.org/10.1115/GT2010-23095

Abstract

View Articletitled, A New Finite Element Approach to Biaxial Fatigue Life Prediction in Gas Turbine Engine

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Topics: Fatigue life , Finite element analysis , Gas turbines , Fatigue , Failure , Constitutive equations , Cycles , Stress , Finite element methods , Aluminum

An Efficient Method for the Optimization of Viscoplastic Constitutive Model Constants

James P. DeMarco, Erik A. Hogan, Calvin M. Stewart, Ali P. Gordon

GT 2010; 569-580https://doi.org/10.1115/GT2010-23311

Abstract

View Articletitled, An Efficient Method for the Optimization of Viscoplastic Constitutive Model Constants

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Topics: Constitutive equations , Modeling , Optimization

Analytical Approach of TMF Prediction for Complex Loading

Farid Ahdad, Ragupathy Kannusamy, B. Damodharan

GT 2010; 581-590https://doi.org/10.1115/GT2010-23440

Abstract

View Articletitled, Analytical Approach of TMF Prediction for Complex Loading

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Topics: Cycles , Exhaust systems , Failure , Fatigue , Fatigue damage , Finite element analysis , Highways , Manifolds , Metals , Roads

Non-Deterministic Methods and Applications

The Impact of Geometric Scatter on High-Cycle-Fatigue of Compressor Blades

Kay Heinze, Konrad Vogeler, Winfried-Hagen Friedl

GT 2010; 591-599https://doi.org/10.1115/GT2010-22083

Abstract

View Articletitled, The Impact of Geometric Scatter on High-Cycle-Fatigue of Compressor Blades

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Topics: Blades , Compressors , Electromagnetic scattering , High cycle fatigue , Design , Abrasion , Blanks , Chain , Dimensions , Forging

Mistuning Identification of Bladed Disks Utilizing Neural Networks

M. Ersin Yu¨mer, Ender Cig˘erog˘lu, H. Nevzat O¨zgu¨ven

GT 2010; 601-610https://doi.org/10.1115/GT2010-22129

Abstract

View Articletitled, Mistuning Identification of Bladed Disks Utilizing Neural Networks

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Topics: Artificial neural networks , Disks , Rotors , Manufacturing , Optimization , Blades , Engineering simulation , Errors , Mode shapes , Simulation

Probabilistic Creep Life Prediction of Turbine Discs

Ashok K. Koul, Ajay Tiku, Srinivasan Shanks Shankar, Jun Zhao

GT 2010; 611-616https://doi.org/10.1115/GT2010-22169

Abstract

View Articletitled, Probabilistic Creep Life Prediction of Turbine Discs

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Topics: Creep , Disks , Turbines , Engines , Fracture (Materials) , Modeling , Physics , Damage , Exhaust systems , Failure

Probabilistic CFD Simulation of a High-Pressure Compressor Stage Taking Manufacturing Variability Into Account

Alexander Lange, Matthias Voigt, Konrad Vogeler, Henner Schrapp, Erik Johann, Volker Gu¨mmer

GT 2010; 617-628https://doi.org/10.1115/GT2010-22484

Abstract

View Articletitled, Probabilistic CFD Simulation of a High-Pressure Compressor Stage Taking Manufacturing Variability Into Account

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Topics: Compressors , Computational fluid dynamics , High pressure (Physics) , Manufacturing , Simulation , Blades , Electromagnetic scattering , Airfoils , Statistical analysis

Probabilistic Engine Maintenance Modeling for Varying Environmental and Operating Conditions

Matthias Mu¨ller, Stephan Staudacher, Winfried-Hagen Friedl, Rene´ Ko¨hler, Matthias Weißschuh

GT 2010; 629-638https://doi.org/10.1115/GT2010-22548

Abstract

View Articletitled, Probabilistic Engine Maintenance Modeling for Varying Environmental and Operating Conditions

PDF

Topics: Engines , Maintenance , Modeling , Cycles , Damage , Electromagnetic scattering , Physics , Reliability , Aircraft engines , Failure

Probabilistic Property Prediction of Aero-Engine Components for Fatigue

J. W. Brooks, H. C. Basoalto, R. Sahota, P. Tranter

GT 2010; 639-648https://doi.org/10.1115/GT2010-22708

Abstract

View Articletitled, Probabilistic Property Prediction of Aero-Engine Components for Fatigue

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Topics: Aircraft engines , Fatigue , Electromagnetic scattering , Mechanical properties , Manufacturing , Algorithms , Computer software , Disks , Flow (Dynamics) , Forging

Response Statistics and Reliability Analysis of a Mistuned and Frictionally Damped Bladed Disk Assembly Subjected to White Noise Excitation

Pankaj Kumar, S. Narayanan

GT 2010; 649-658https://doi.org/10.1115/GT2010-22736

Abstract

View Articletitled, Response Statistics and Reliability Analysis of a Mistuned and Frictionally Damped Bladed Disk Assembly Subjected to White Noise Excitation

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Topics: Blades , Dampers , Disks , Event history analysis , Excitation , Friction , Manufacturing , Reliability , Statistics , Vibration

Toward Developing a Probabilistic Methodology for Predicting High-Cycle Fretting Fatigue in Aero-Engines

Kwai S. Chan, Michael P. Enright, Harold R. Simmons, Patrick J. Golden, Ramesh Chandra, Alan C. Pentz

GT 2010; 659-666https://doi.org/10.1115/GT2010-23007

Abstract

View Articletitled, Toward Developing a Probabilistic Methodology for Predicting High-Cycle Fretting Fatigue in Aero-Engines

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Topics: Aircraft engines , Cycles , Fatigue , Stress , Finite element methods , Fracture mechanics , Stress analysis (Engineering) , Computation , Disks , Engines

Forced Vibrations of Bladings With the Random Technological Mistuning

O. O. Larin

GT 2010; 667-672https://doi.org/10.1115/GT2010-23099

Abstract

View Articletitled, Forced Vibrations of Bladings With the Random Technological Mistuning

PDF

Topics: Vibration , Blades , Disks , Cylinders , Pressure , Steady state , Steam turbines

Probabilistic Structural Analysis of Annular Deformation Resistance Welding Process

Shantaram S. Pai, N. Bhattacharya, Vinod K. Nagpal

GT 2010; 673-682https://doi.org/10.1115/GT2010-23569

Abstract

View Articletitled, Probabilistic Structural Analysis of Annular Deformation Resistance Welding Process

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Topics: Deformation , Structural analysis , Welding , Manufacturing , Simulation , Computer software , Physics , Stress , Uncertainty

A Probabilistic Framework for Gas Turbine Engine Materials With Multiple Types of Anomalies

Michael P. Enright, R. Craig McClung

GT 2010; 683-693https://doi.org/10.1115/GT2010-23618

Abstract

View Articletitled, A Probabilistic Framework for Gas Turbine Engine Materials With Multiple Types of Anomalies

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Topics: Gas turbines , Failure , Probability , Risk , Engines , Failure mechanisms , Fracture (Materials) , Fracture (Process) , Manufacturing , Nickel

Bayesian Approach for Fatigue Life Prediction From Field Data

Nam H. Kim, Sriram Pattabhiraman, Lonnie A. Houck, III

GT 2010; 695-703https://doi.org/10.1115/GT2010-23780

Abstract

View Articletitled, Bayesian Approach for Fatigue Life Prediction From Field Data

PDF

Topics: Design , Fatigue life , Gas turbines , Hardware , Machinery , Maintenance , Manufacturing , Probability , Risk , Risk analysis

Structural Mechanics and Vibration

Calibrated Non Linear Dissipative Model of Fan Bladed Disk

Jean-Pierre Lombard, Pierrick Jean, Pascal Lubrina

GT 2010; 705-713https://doi.org/10.1115/GT2010-22046

Abstract

View Articletitled, Calibrated Non Linear Dissipative Model of Fan Bladed Disk

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Topics: Disks , Damping , Modeling , Blades , Calibration , Chords (Trusses) , Electromagnetic scattering , Flight , Physics , Robustness

A Moving Load Finite Element-Based Approach to Determination of Case Load in a Blade-on-Casing Incursion

Jeremy Ferguson, Michael G. Dunn, Corso Padova, Steve Manwaring, Alan Turner

GT 2010; 715-722https://doi.org/10.1115/GT2010-22048

Abstract

View Articletitled, A Moving Load Finite Element-Based Approach to Determination of Case Load in a Blade-on-Casing Incursion

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Topics: Blades , Pavement live loads , Stress , Finite element analysis , Modeling

A Numerical Approach for the Resonance Passage Computation

Andreas Hartung

GT 2010; 723-728https://doi.org/10.1115/GT2010-22051

Abstract

View Articletitled, A Numerical Approach for the Resonance Passage Computation

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Topics: Computation , Resonance , Damping , Excitation , Turbine blades

A Methodology for Predicting the Response of Blades With Non-Linear Coatings

Sergio Filippi, Peter J. Torvik

GT 2010; 729-737https://doi.org/10.1115/GT2010-22090

Abstract

View Articletitled, A Methodology for Predicting the Response of Blades With Non-Linear Coatings

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Topics: Blades , Coatings , Damping , Cathode ray oscilloscopes , Ceramic coatings , Ceramics , Corrosion resistance , Disks , Electron beams , Erosion

Experimental Methodology for Determining Turbomachinery Blade Damping Using Magnetic Bearing Excitation and Non-Contacting Optical Measurements

Andrew J. Provenza, Kirsten P. Duffy

GT 2010; 739-747https://doi.org/10.1115/GT2010-22093

Abstract

View Articletitled, Experimental Methodology for Determining Turbomachinery Blade Damping Using Magnetic Bearing Excitation and Non-Contacting Optical Measurements

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Topics: Blades , Damping , Excitation , Magnetic bearings , Optical measurement , Turbomachinery , Rotors , Aerodynamics , Fluid-dynamic forces , Measurement systems

Mistuning Identification for Integrally Bladed Disks Based on the SNM Technique

Shuai Wang, Jianyao Yao, Jianjun Wang

GT 2010; 749-756https://doi.org/10.1115/GT2010-22105

Abstract

View Articletitled, Mistuning Identification for Integrally Bladed Disks Based on the SNM Technique

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Topics: Disks , Blades , Damping , Density , Errors , Steady state

Non-Linear Forced Response Analysis of Mistuned Bladed Disk Assemblies

M. Ersin Yu¨mer, Ender Cig˘erog˘lu, H. Nevzat O¨zgu¨ven

GT 2010; 757-766https://doi.org/10.1115/GT2010-22128

Abstract

View Articletitled, Non-Linear Forced Response Analysis of Mistuned Bladed Disk Assemblies

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Topics: Disks , Degrees of freedom , Nonlinear equations , Algebra , Blades , Computation , Design , Differential equations , Friction , Manufacturing

Experimental and Analytical Investigations of a Low Pressure Model Turbine During Forced Response Excitation

Christoph Heinz, Markus Schatz, Michael V. Casey, Heinrich Stu¨er

GT 2010; 767-777https://doi.org/10.1115/GT2010-22146

Abstract

View Articletitled, Experimental and Analytical Investigations of a Low Pressure Model Turbine During Forced Response Excitation

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Topics: Excitation , Pressure , Turbines , Blades , Damping , Rotors , Vibration , Degrees of freedom , Density , Engines

Airfoil Deflection Characteristics During Rub Events

Kevin E. Turner, Michael Dunn, Corso Padova

GT 2010; 779-789https://doi.org/10.1115/GT2010-22166

Abstract

View Articletitled, Airfoil Deflection Characteristics During Rub Events

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Topics: Airfoils , Deflection , Aviation , Blades , Gas turbines , Modeling , Physics , Stress , Transients (Dynamics) , Turbomachinery

Vibration Response Characteristics of Bladed Disk With Continuous Ring Type Structure Losing Shroud and Stab

Yasutomo Kaneko, Kazushi Mori, Hiroharu Ohyama

GT 2010; 791-798https://doi.org/10.1115/GT2010-22202

Abstract

View Articletitled, Vibration Response Characteristics of Bladed Disk With Continuous Ring Type Structure Losing Shroud and Stab

PDF

Topics: Disks , Vibration , Blades , Finite element analysis , Random vibration , Resonance

Computational Modeling and Validation Testing of Dynamic Blade Stresses in a Rotating Centrifugal Compressor Using a Time Domain Coupled Fluid-Structure Computational Model

Andrew Lerche, J. Jeffrey Moore, Yusheng Feng

GT 2010; 799-807https://doi.org/10.1115/GT2010-22216

Abstract

View Articletitled, Computational Modeling and Validation Testing of Dynamic Blade Stresses in a Rotating Centrifugal Compressor Using a Time Domain Coupled Fluid-Structure Computational Model

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Topics: Blades , Compressors , Computer simulation , Fluids , Stress , Testing , Fluid structure interaction , Strain gages , Axial flow , Inflow

3D Numerical Friction Contact Model and Its Application to Nonlinear Blade Damping

Weiwei Gu, Zili Xu

GT 2010; 809-817https://doi.org/10.1115/GT2010-22292

Abstract

View Articletitled, 3D Numerical Friction Contact Model and Its Application to Nonlinear Blade Damping

PDF

Topics: Blades , Damping , Friction , Nonlinear vibration , Dampers , Fourier transforms , Sliding friction , Springs , Stiction , Turbine blades

Aeromechanic Validation of a New Steam Turbine LP Section: Test Major Outcomes

Francesco Piraccini, Roberto Biondi, Lorenzo Cosi

GT 2010; 819-826https://doi.org/10.1115/GT2010-22353

Abstract

View Articletitled, Aeromechanic Validation of a New Steam Turbine LP Section: Test Major Outcomes

PDF

Topics: Performance , Steam turbines , Blades , Damping , Pressure , Flow (Dynamics) , Q-factor , Rotors , Steam , Strain gages

Response Prediction of Frictionally Constraint Blade Systems Based on a Variable Normal Load Microslip Model

Yalin Liu, Zili Xu, Shangguan Bo, Linzhong Li

GT 2010; 827-835https://doi.org/10.1115/GT2010-22385

Abstract

View Articletitled, Response Prediction of Frictionally Constraint Blade Systems Based on a Variable Normal Load Microslip Model

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Topics: Blades , Stress , Friction , Complex systems , Degrees of freedom , Emission spectroscopy , Fourier transforms , Kinematics , Nonlinear vibration , Resonance

Experimental Investigation on Damping Characteristics of Blade With Loosely Assembled Dovetail Attachment

Shangguan Bo, Zili Xu, Yalin Liu, An Xu

GT 2010; 837-843https://doi.org/10.1115/GT2010-22386

Abstract

View Articletitled, Experimental Investigation on Damping Characteristics of Blade With Loosely Assembled Dovetail Attachment

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Topics: Blades , Damping , Centrifugal force , Resonance , Compressors , Simulation , Dry friction , Dynamic response , Measurement systems

Simulation of Tip-Timing Measurements of a Cracked Bladed Disk Forced Response

Vsevolod Kharyton, Jean-Pierre Laine, Fabrice Thouverez, Olexiy Kucher

GT 2010; 845-854https://doi.org/10.1115/GT2010-22388

Abstract

View Articletitled, Simulation of Tip-Timing Measurements of a Cracked Bladed Disk Forced Response

PDF

Topics: Blades , Disks , Simulation

Experimental and Analytical Mistuning Analysis of a Blisk at Lab Conditions and Under Rig Conditions Using Tip Timing

Harald Schoenenborn, Ulrich Retze, Gerhard Ziller, Phillip Waniczek

GT 2010; 855-864https://doi.org/10.1115/GT2010-22447

Abstract

View Articletitled, Experimental and Analytical Mistuning Analysis of a Blisk at Lab Conditions and Under Rig Conditions Using Tip Timing

PDF

Topics: Airfoils , Boundary-value problems , Centrifugal force , Compressors , Damping , Design , Engines , Excitation , Finite element methods , Finite element model

Experimental and Numerical Investigations of HPC Blisks With a Focus on Travelling Waves

Ulrik Strehlau, Arnold Ku¨hhorn

GT 2010; 865-877https://doi.org/10.1115/GT2010-22463

Abstract

View Articletitled, Experimental and Numerical Investigations of HPC Blisks With a Focus on Travelling Waves

PDF

Topics: Traveling waves , Blades , Disks , Design , Vibration , Damping , Eigenvalues , Standing waves , Aircraft engines , Compressors

Modal Stress Efficiency Scaling for Gas Turbine Combustion Systems

W. David Day, Scott Auerbach

GT 2010; 879-887https://doi.org/10.1115/GT2010-22479

Abstract

View Articletitled, Modal Stress Efficiency Scaling for Gas Turbine Combustion Systems

PDF

Topics: Combustion systems , Gas turbines , Stress , Design , Engines , Combustion , Excitation , Emissions , Resonance , Superalloys

Quantitative Validation of the Asymptotic Mistuning Model Using a High Fidelity Bladed Disk Model

Oualid Khemiri, Carlos Martel, Roque Corral

GT 2010; 889-898https://doi.org/10.1115/GT2010-22498

Abstract

View Articletitled, Quantitative Validation of the Asymptotic Mistuning Model Using a High Fidelity Bladed Disk Model

PDF

Topics: Disks , Finite element methods , Vibration , Computer simulation , Damping , Springs

Transmitted Power in a Structure Using the Effective Mass Parameters

Costin D. Untaroiu, Alexandrina Untaroiu, Matthew Wagner, Paul E. Allaire

GT 2010; 899-904https://doi.org/10.1115/GT2010-22526

Abstract

View Articletitled, Transmitted Power in a Structure Using the Effective Mass Parameters

PDF

Topics: Flow (Dynamics) , Linear systems , Stiffness , Vibration

Reliable FE Modeling of Chord-Wise Blade Modes in Compressor Design Process

Ilya Fedorov, Jaroslaw Szwedowicz, Wolfgang Kappis, Igor Putchkov

GT 2010; 905-915https://doi.org/10.1115/GT2010-22619

Abstract

View Articletitled, Reliable FE Modeling of Chord-Wise Blade Modes in Compressor Design Process

PDF

Topics: Blades , Chords (Trusses) , Compressors , Design , Modeling , Resonance , Airfoils , Engineering disciplines , Uncertainty , Aerodynamics

Vibration Analysis of a Nonlinear System With Cyclic Symmetry

Aure´lien Grolet, Fabrice Thouverez

GT 2010; 917-929https://doi.org/10.1115/GT2010-22681

Abstract

View Articletitled, Vibration Analysis of a Nonlinear System With Cyclic Symmetry

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Topics: Bifurcation , Blades , Deflection , Dynamic response , Engines , Excitation , Nonlinear differential equations , Nonlinear dynamics , Nonlinear systems , Stability

Prediction of the Vibratory Behaviour of Monoblock Sectorised Stator Vanes

Amadou C. Sall, Fabrice Thouverez, Laurent Blanc, Pierrick Jean, Xavier Ottavy

GT 2010; 931-937https://doi.org/10.1115/GT2010-22698

Abstract

View Articletitled, Prediction of the Vibratory Behaviour of Monoblock Sectorised Stator Vanes

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Topics: Stators , Blades , Compressors , Damping , Density , Engines , Errors , Excitation , Fatigue , Fluctuations (Physics)

Reduced Order Model of a Multistage Bladed Rotor With Geometric Mistuning via Modal Analyses of Finite Element Sectors

Yasharth Bhartiya, Alok Sinha

GT 2010; 939-948https://doi.org/10.1115/GT2010-22725

Abstract

View Articletitled, Reduced Order Model of a Multistage Bladed Rotor With Geometric Mistuning via Modal Analyses of Finite Element Sectors

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Topics: Finite element analysis , Modal analysis , Rotors , Algorithms , Blades , Disks , Engineering simulation , Finite element model , Simulation , Statistical distributions

Mechanical Damping Analysis of a Vibrating Labyrinth Seal Structure With Frictional Contact

R. P. Coghlan, J. S. Green, A. K. Baron

GT 2010; 949-957https://doi.org/10.1115/GT2010-22786

Abstract

View Articletitled, Mechanical Damping Analysis of a Vibrating Labyrinth Seal Structure With Frictional Contact

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Topics: Damping , Vibration , Dampers , Design , Excitation , Friction , Nonlinear vibration , Construction , Displacement , Engines

A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multi-Frequency Unbalance Excitation

Pham Minh Hai, Philip Bonello

GT 2010; 959-969https://doi.org/10.1115/GT2010-22801

Abstract

View Articletitled, A Computational Parametric Analysis of the Vibration of a Three-Spool Aero-Engine Under Multi-Frequency Unbalance Excitation

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Topics: Aircraft engines , Excitation , Vibration , Rotors , Engines , Manufacturing , Springs , Dampers , Damping , Dynamic response

A Test Rig for Non-Contact Travelling Wave Excitation of a Bladed Disk With Underplatform Dampers

Teresa Berruti, Christian M. Firrone, Muzio M. Gola

GT 2010; 971-980https://doi.org/10.1115/GT2010-22879

Abstract

View Articletitled, A Test Rig for Non-Contact Travelling Wave Excitation of a Bladed Disk With Underplatform Dampers

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Topics: Dampers , Disks , Excitation , Traveling waves , Blades , Electromagnets , Excitation systems , Calibration , Computer simulation , Design

Maximum Amplification of Blade Response in Mistuned Multi Stage Assemblies

Javier Avalos, Marc P. Mignolet

GT 2010; 981-994https://doi.org/10.1115/GT2010-23062

Abstract

View Articletitled, Maximum Amplification of Blade Response in Mistuned Multi Stage Assemblies

PDF

Topics: Blades , Optimization

Evaluation of High-Order Resonance of Blade Under Wake Excitation

Lin Li, Peiyi Wang

GT 2010; 995-1001https://doi.org/10.1115/GT2010-23148

Abstract

View Articletitled, Evaluation of High-Order Resonance of Blade Under Wake Excitation

PDF

Topics: Blades , Excitation , Resonance , Wakes , Aerodynamics , Fluid-dynamic forces , Machinery , Turbochargers , Vibration , Cascades (Fluid dynamics)

Dynamic Analysis of Fretting-Wear in Joint Interface by a Multiscale Harmonic Balance Method Coupled With Explicit or Implicit Integration Schemes

Loi¨c Salles, Alexander M. Gouskov, Laurent Blanc, Fabrice Thouverez, Pierrick Jean

GT 2010; 1003-1013https://doi.org/10.1115/GT2010-23264

Abstract

View Articletitled, Dynamic Analysis of Fretting-Wear in Joint Interface by a Multiscale Harmonic Balance Method Coupled With Explicit or Implicit Integration Schemes

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Topics: Dynamic analysis , Wear , Disks , Blades , Tribology , Algorithms , Dampers , Dynamics (Mechanics) , Friction , Geometry

Validation of Test Rig Measurements and Prediction Tools for Friction Interface Modelling

C. W. Schwingshackl, E. P. Petrov, D. J. Ewins

GT 2010; 1015-1024https://doi.org/10.1115/GT2010-23274

Abstract

View Articletitled, Validation of Test Rig Measurements and Prediction Tools for Friction Interface Modelling

PDF

Topics: Friction , Modeling , Blades , Dampers , Gas turbines , Pressure , Stiffness , Stress concentration , Structural dynamics

A High-Accuracy Model Reduction for Analysis of Nonlinear Vibrations in Structures With Contact Interfaces

E. P. Petrov

GT 2010; 1025-1037https://doi.org/10.1115/GT2010-23295

Abstract

View Articletitled, A High-Accuracy Model Reduction for Analysis of Nonlinear Vibrations in Structures With Contact Interfaces

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Topics: Blades , Dampers , Disks , Finite element analysis , Frequency-domain analysis , Modeling , Steady state , Vibration

Reduction of Forced Response Levels for Bladed Discs by Mistuning: Overview of the Phenomenon

E. P. Petrov

GT 2010; 1039-1051https://doi.org/10.1115/GT2010-23299

Abstract

View Articletitled, Reduction of Forced Response Levels for Bladed Discs by Mistuning: Overview of the Phenomenon

PDF

Topics: Disks , Blades , Damping , Design , Optimization , Robustness

Detection of Damage in Repeating Structures

A. U. Rehman, J. A. Rongong, K. Worden

GT 2010; 1053-1061https://doi.org/10.1115/GT2010-23351

Abstract

View Articletitled, Detection of Damage in Repeating Structures

PDF

Topics: Damage , Fracture (Materials) , Modal assurance criterion , Blades , Rotors , Elastic moduli , Manufacturing , Temperature distribution , Turbomachinery

Vibrations of the LH2 Turbine Rotor During the Vinci Engine Test: Tip Timing Measurements and Predictions

Clas Andersson, Peter Grasbon, Simon Merchant

GT 2010; 1063-1071https://doi.org/10.1115/GT2010-23413

Abstract

View Articletitled, Vibrations of the LH2 Turbine Rotor During the Vinci Engine Test: Tip Timing Measurements and Predictions

PDF

Topics: Engines , Rotors , Turbines , Vibration , Resonance , Blades , Design , High cycle fatigue , Rendering , Risk

Coupled Static/Dynamic Modeling of Wedge Dampers for Turbine Blades

Stefano Zucca, Christian M. Firrone, Muzio Gola

GT 2010; 1073-1086https://doi.org/10.1115/GT2010-23466

Abstract

View Articletitled, Coupled Static/Dynamic Modeling of Wedge Dampers for Turbine Blades

PDF

Topics: Dampers , Damping , Dynamic modeling , Friction , Turbine blades , Wedges

Pseudo-Density Approach to the Solution of a Thin Rotating Turbine Engine Disk

Richard Rodrigues Jettappa

GT 2010; 1087-1095https://doi.org/10.1115/GT2010-23528

Abstract

View Articletitled, Pseudo-Density Approach to the Solution of a Thin Rotating Turbine Engine Disk

PDF

Topics: Density , Disks , Gas turbines , Shapes , Testing

A Method to Determine the Exact Time Period of Oscillations of a Bifilar Pendulum

Sheshadri Sharma, Richard Rodrigues Jettappa

GT 2010; 1097-1102https://doi.org/10.1115/GT2010-23531

Abstract

View Articletitled, A Method to Determine the Exact Time Period of Oscillations of a Bifilar Pendulum

PDF

Topics: Inertia (Mechanics) , Nonlinear systems , Oscillations , Pendulums

On Forced Response of a Rotating Integrally Bladed Disk: Predictions and Experiments

Claude Gibert, Vsevolod Kharyton, Fabrice Thouverez, Pierrick Jean

GT 2010; 1103-1116https://doi.org/10.1115/GT2010-23610

Abstract

View Articletitled, On Forced Response of a Rotating Integrally Bladed Disk: Predictions and Experiments

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Topics: Coriolis force , Disks , Traveling waves

Design and Optimization of Radial Flow Wheels for a Waste Heat Recovery Double Supersonic Stage Turbo-Expander

Paolo Del Turco, Alberto Scotti Del Greco, Daniele Natali, Robert Borys, Roberto Biagi

GT 2010; 1117-1126https://doi.org/10.1115/GT2010-23649

Abstract

View Articletitled, Design and Optimization of Radial Flow Wheels for a Waste Heat Recovery Double Supersonic Stage Turbo-Expander

PDF

Topics: Design , Heat recovery , Optimization , Radial flow , Turbochargers , Wheels , Cycles , High cycle fatigue , Resonance , Computational fluid dynamics

On the Frequency Response of a Spinning Disk With Large Deformations

Ramin M. H. Khorasany, Stanley G. Hutton

GT 2010; 1127-1134https://doi.org/10.1115/GT2010-23703

Abstract

View Articletitled, On the Frequency Response of a Spinning Disk With Large Deformations

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Topics: Deformation , Frequency response , Rotating disks , Disks , Equations of motion , Equilibrium (Physics) , Oscillations , Approximation , Blades , Boundary-value problems

On the Frequency Response of an Axisymmetric Non-Flat Spinning Disk

Ramin M. H. Khorasany, Stanley G. Hutton

GT 2010; 1135-1143https://doi.org/10.1115/GT2010-23708

Abstract

View Articletitled, On the Frequency Response of an Axisymmetric Non-Flat Spinning Disk

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Topics: Frequency response , Rotating disks , Disks , Eigenfunctions , Displacement , Equations of motion , Stress , Deflection , Oscillations , Plate theory

Forced Response Analysis of Mistuned Turbine Bladings

Christian Siewert, Heinrich Stu¨er

GT 2010; 1145-1156https://doi.org/10.1115/GT2010-23782

Abstract

View Articletitled, Forced Response Analysis of Mistuned Turbine Bladings

PDF

Topics: Damping , Disks , Dynamics (Mechanics) , Stiffness , Turbines

Coating Methods to Increase Material Damping of Compressor Blades: Measurements and Modeling

Jia Sun, Leif Kari

GT 2010; 1157-1165https://doi.org/10.1115/GT2010-23790

Abstract

View Articletitled, Coating Methods to Increase Material Damping of Compressor Blades: Measurements and Modeling

PDF

Topics: Blades , Coating processes , Coatings , Compressors , Damping , Modeling , Radiation (Physics) , Vacuum , Aluminum , Epoxy adhesives

Unsteady Aerodynamics (With Turbomachinery Committee)

Experimental Investigations of Laminar Separation Bubble for a Flow Past an Airfoil

Deepakkumar M. Sharma, Kamal Poddar

GT 2010; 1167-1173https://doi.org/10.1115/GT2010-22224

Abstract

View Articletitled, Experimental Investigations of Laminar Separation Bubble for a Flow Past an Airfoil

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Topics: Airfoils , Bubbles , Flow (Dynamics) , Separation (Technology) , Pressure , Flow separation , Boundary layer turbulence , Boundary layers , Chords (Trusses) , Flow visualization

Aerodynamic Analysis of an Innovative Low Pressure Vane Placed in a S-Shape Duct

S. Lavagnoli, T. Yasa, G. Paniagua, S. Duni, L. Castillon

GT 2010; 1175-1188https://doi.org/10.1115/GT2010-22546

Abstract

View Articletitled, Aerodynamic Analysis of an Innovative Low Pressure Vane Placed in a S-Shape Duct

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Topics: Ducts , Pressure , Shapes , Stators , Struts (Engineering) , Turbines , Airfoils , Unsteady flow , Aerodynamics , Blades

Non-Linear Flutter in Fan Stator Vanes With Time Dependent Fixity

R. Srivastava, J. Panovsky, R. Kielb, L. Virgin, K. Ekici

GT 2010; 1189-1199https://doi.org/10.1115/GT2010-22555

Abstract

View Articletitled, Non-Linear Flutter in Fan Stator Vanes With Time Dependent Fixity

PDF

Topics: Flutter (Aerodynamics) , Stators , Failure , Engines , Composite materials , Excitation , Fans , Turbofans

Aerodynamics and Aeroelasticity of Impeller Vane Interactions in a High Pressure Ratio Centrifugal Compressor

S. K. Krishnababu, M. Imregun, J. S. Green, D. Hoyniak

GT 2010; 1201-1208https://doi.org/10.1115/GT2010-22595

Abstract

View Articletitled, Aerodynamics and Aeroelasticity of Impeller Vane Interactions in a High Pressure Ratio Centrifugal Compressor

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Topics: Aerodynamics , Aeroelasticity , Compressors , High pressure (Physics) , Impellers , Diffusers , Annulus , Blades , Computation , Modeling

A New Reduced Order Modeling for Stability and Forced Response Analysis of Aero-Coupled Blades Considering Various Mode Families

Mari´a A. Mayorca, Damian M. Vogt, Hans Ma˚rtensson, Torsten H. Fransson

GT 2010; 1209-1219https://doi.org/10.1115/GT2010-22745

Abstract

View Articletitled, A New Reduced Order Modeling for Stability and Forced Response Analysis of Aero-Coupled Blades Considering Various Mode Families

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Topics: Blades , Modeling , Stability , Damping , Approximation , Compressors , Magnification , Separation (Technology) , Shapes

Influence of the Blade Count Ratio on Aerodynamic Forcing: Part I—Highly Loaded Transonic Compressor

Florian Fruth, Damian M. Vogt, Hans Ma˚rtensson, Mari´a A. Mayorca, Torsten H. Fransson

GT 2010; 1221-1233https://doi.org/10.1115/GT2010-22756

Abstract

View Articletitled, Influence of the Blade Count Ratio on Aerodynamic Forcing: Part I—Highly Loaded Transonic Compressor

PDF

Topics: Blades , Compressors , High cycle fatigue , Aerodynamics , Computational fluid dynamics , Resonance , Risk , Stators , Stress

Effect of the Structural Coupling on the Flutter Onset of a Sector of Low-Pressure Turbine Vanes

Ruben Antona, Roque Corral, Juan M. Gallardo, Carlos Martel

GT 2010; 1235-1245https://doi.org/10.1115/GT2010-23037

Abstract

View Articletitled, Effect of the Structural Coupling on the Flutter Onset of a Sector of Low-Pressure Turbine Vanes

PDF

Topics: Flutter (Aerodynamics) , Pressure , Turbines , Dynamics (Mechanics) , Finite element analysis , Springs , Stability , Three-dimensional models

Three-Dimensional Non-Reflecting Boundary Condition for Linearized Flow Solvers

Paul J. Petrie-Repar

GT 2010; 1247-1252https://doi.org/10.1115/GT2010-23335

Abstract

View Articletitled, Three-Dimensional Non-Reflecting Boundary Condition for Linearized Flow Solvers

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Topics: Boundary-value problems , Flow (Dynamics) , Flow simulation , Shapes , Unsteady flow

Interface Treatment for Harmonic Solution in Multi-Row Aeromechanic Analysis

M. T. Rahmati, L. He, R. G. Wells

GT 2010; 1253-1261https://doi.org/10.1115/GT2010-23376

Abstract

View Articletitled, Interface Treatment for Harmonic Solution in Multi-Row Aeromechanic Analysis

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Topics: Blades , Damping , Flow (Dynamics) , Fourier transforms , Rotors , Stators , Time series

Sensitivity Analysis With Respect to Flutter-Free Design of Compressor Blades

Markus May

GT 2010; 1263-1275https://doi.org/10.1115/GT2010-23557

Abstract

View Articletitled, Sensitivity Analysis With Respect to Flutter-Free Design of Compressor Blades

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Topics: Blades , Compressors , Design , Flutter (Aerodynamics) , Sensitivity analysis , Stability , Aerospace industry , Computation , Damping , Excitation

Experimental Investigation of the Forcing Function and Forced Pitching Blade Oscillations of an Annular Compressor Cascade in Transonic Flow

Joachim Belz, Holger Hennings, Gerhard Kahl

GT 2010; 1277-1285https://doi.org/10.1115/GT2010-23590

Abstract

View Articletitled, Experimental Investigation of the Forcing Function and Forced Pitching Blade Oscillations of an Annular Compressor Cascade in Transonic Flow

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Topics: Blades , Cascades (Fluid dynamics) , Compressors , Oscillations , Transonic flow , Excitation , Flow (Dynamics) , Stators , Pressure , Rotors

Unsteady Acoustic Forcing on an Impeller Due to Coupled Blade Row Interactions

Simon K. Richards, Kishore Ramakrishnan, Chingwei M. Shieh, Franc¸ois Moyroud, Alain Picavet, Valeria Ballarini, Vittorio Michelassi

GT 2010; 1287-1297https://doi.org/10.1115/GT2010-23771

Abstract

View Articletitled, Unsteady Acoustic Forcing on an Impeller Due to Coupled Blade Row Interactions

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Topics: Acoustics , Blades , Impellers , Excitation , Compressors , Wakes , Computational fluid dynamics , Design , Flow (Dynamics) , Pressure

Numerical Modelling of Fluid-Structure Interaction in a Turbine Stage for 3D Viscous Flow in Nominal and Off- Design Regimes

Romuald Rzadkowski, Vitaly Gnesin, Lubov Kolodyazhnaya

GT 2010; 1299-1307https://doi.org/10.1115/GT2010-23779

Abstract

View Articletitled, Numerical Modelling of Fluid-Structure Interaction in a Turbine Stage for 3D Viscous Flow in Nominal and Off- Design Regimes

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Topics: Design , Fluid structure interaction , Modeling , Turbines , Viscous flow , Blades , Boundary layers , Excitation , Flow (Dynamics) , Numerical analysis

General

Low Fidelity Turbomachinery Disk Design Studies

David P. Gutzwiller, Mark G. Turner

GT 2010; 1309-1324https://doi.org/10.1115/GT2010-22733

Abstract

View Articletitled, Low Fidelity Turbomachinery Disk Design Studies

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Topics: Design , Disks , Turbomachinery , Stress , Composite materials , Temperature gradient , Turbines , Complex systems , Compressors , Gas turbines

Dental Air Turbine Performance Study Using CFD and Experimental Approach

Hsiao-Wei D. Chiang, Chih-Neng Hsu, Ya-Yi Chang, Shun-Yao Chuang

GT 2010; 1325-1332https://doi.org/10.1115/GT2010-23039

Abstract

View Articletitled, Dental Air Turbine Performance Study Using CFD and Experimental Approach

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Topics: Computational fluid dynamics , Turbines

Investigation of Impeller Strength for a Cryogenic Liquid Turbine

Yan Ren, Jinju Sun, Rongye Zheng, Peng Song, Ke Wang

GT 2010; 1333-1343https://doi.org/10.1115/GT2010-23125

Abstract

View Articletitled, Investigation of Impeller Strength for a Cryogenic Liquid Turbine

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Topics: Impellers , Turbines , Low temperature , Stress , Mechanical properties , Centrifugal force , Design , Finite element methods , Metals , Nozzles

Evaluation of the Energy Dissipated as Friction/Heat Between Turbines Following Shaft Failure

I. Rojo, A. Psarra, V. Pachidis, P. Pilidis

GT 2010; 1345-1352https://doi.org/10.1115/GT2010-23302

Abstract

View Articletitled, Evaluation of the Energy Dissipated as Friction/Heat Between Turbines Following Shaft Failure

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Topics: Failure , Friction , Heat , Turbines , Blades , Kinetic energy , Thermomechanics , Wear , Damping , Disks

Experimental and Numerical Investigation of Fretting Wear at High Temperature for Aeronautical Alloys

D. Botto, A. Campagna, M. Lavella, M. M. Gola

GT 2010; 1353-1362https://doi.org/10.1115/GT2010-23356

Abstract

View Articletitled, Experimental and Numerical Investigation of Fretting Wear at High Temperature for Aeronautical Alloys

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Topics: Alloys , High temperature , Wear , Cycles , Contact mechanics , Geometry , Oscillations , Pressure

Shaft Shape Multi Objective Optimization Based on Bacterial Chemotaxis

Maria Alejandra Guzma´n Pardo, Rodrigo Nicoletti, Jonas de Carvalho

GT 2010; 1363-1367https://doi.org/10.1115/GT2010-23359

Abstract

View Articletitled, Shaft Shape Multi Objective Optimization Based on Bacterial Chemotaxis

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Topics: Pareto optimization , Shapes , Design , Algorithms , Biomimetics , Engineers , Optimization , Safety , Shape optimization , Weight (Mass)

Exploration of NDE Properties of AMB Supported Rotors for Structural Damage Detection

Jerzy T. Sawicki, Dmitry L. Storozhev, John D. Lekki

GT 2010; 1369-1376https://doi.org/10.1115/GT2010-23772

Abstract

View Articletitled, Exploration of NDE Properties of AMB Supported Rotors for Structural Damage Detection

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Topics: Damage , Nondestructive evaluation , Rotors , Excitation , Fracture (Materials) , Actuators , Bearings , Computer simulation , Levitation , Magnetic bearings