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

Topics: Clearances (Engineering) , Computational fluid dynamics , Dampers , Density , Energy consumption , Flow (Dynamics) , Fluid dynamics , Pressure , Rotors , Stability

Radial Inflow Turbine: Synchronous Vibration Failure

Loc Q. Duong, Nagamany Thayalakhandan, Charlene X. Hu

GT 2013; V07AT26A004doi:https://doi.org/10.1115/GT2013-95651

Abstract

View Articletitled, Radial Inflow Turbine: Synchronous Vibration Failure

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Topics: Failure , Inflow , Turbines , Vibration , Blades , Excitation , Compressors , Rotors , Wheels , Aerodynamics

The Application of the Norton-Bailey Law for Creep Prediction Through Power Law Regression

D. L. May, A. P. Gordon, D. S. Segletes

GT 2013; V07AT26A005doi:https://doi.org/10.1115/GT2013-96008

Abstract

View Articletitled, The Application of the Norton-Bailey Law for Creep Prediction Through Power Law Regression

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Topics: Creep , Deformation , Design , Electric power generation , Engineers , Maintenance , Modeling , Service life (Equipment) , Stress , Temperature

Improvement of Compressor Blade Vibrations Spectral Analysis From Tip Timing Data: Aliasing Reduction

A. Vercoutter, J. Lardies, M. Berthillier, A. Talon, B. Burgardt

GT 2013; V07AT26A006doi:https://doi.org/10.1115/GT2013-96016

Abstract

View Articletitled, Improvement of Compressor Blade Vibrations Spectral Analysis From Tip Timing Data: Aliasing Reduction

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Topics: Blades , Compressors , Emission spectroscopy , Spectroscopy , Vibration , Sensors , Computer software , Hardware , Rotating blades , Signals

Fatigue, Fracture and Life Prediction

Fatigue Crack Growth Analysis on a Rotor Blade Under Forced Response

B. Dompierre, E. Wyart, M. Mesbah, F. Thirifay

GT 2013; V07AT27A001doi:https://doi.org/10.1115/GT2013-94090

Abstract

View Articletitled, Fatigue Crack Growth Analysis on a Rotor Blade Under Forced Response

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Topics: Blades , Fatigue cracks , Rotors , Fracture (Materials) , Computational fluid dynamics , Finite element analysis , Computer software , Damping , Equilibrium (Physics) , Excitation

Creep-Fatigue Life Prediction of Stop and Regulating Valves on the Intermediate-Pressure Section of a 1000MW Steam Turbine

Jianfeng Mao, Junhui Zhang, Weizhe Wang, Yingzheng Liu

GT 2013; V07AT27A002doi:https://doi.org/10.1115/GT2013-94167

Abstract

View Articletitled, Creep-Fatigue Life Prediction of Stop and Regulating Valves on the Intermediate-Pressure Section of a 1000MW Steam Turbine

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Topics: Creep , Fatigue , Pressure , Steam turbines , Valves , Damage , Finite element methods , Stress , Damage mechanics , Plasticity

In-Situ Study on Coaxing During Vibration-Based Bending Fatigue of Inconel 625 and 718

Onome Scott-Emuakpor, Jeremy Schwartz, Tommy George, Charles Cross, Casey Holycross, M. H. Herman Shen

GT 2013; V07AT27A003doi:https://doi.org/10.1115/GT2013-94233

Abstract

View Articletitled, In-Situ Study on Coaxing During Vibration-Based Bending Fatigue of Inconel 625 and 718

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Topics: Fatigue , Vibration , Failure , Stress , Cycles , Fatigue life , High cycle fatigue , Aerospace industry , Design , Gas turbines

Creep and Fatigue of Single Crystal and Directionally Solidified Nickel-Base Blades via a Unified Approach Based on Hill48 Potential Function: Part 1 — Plasticity and Creep

Alessandro D. Ramaglia, Paolo Villari

GT 2013; V07AT27A004doi:https://doi.org/10.1115/GT2013-94675

Abstract

View Articletitled, Creep and Fatigue of Single Crystal and Directionally Solidified Nickel-Base Blades via a Unified Approach Based on Hill48 Potential Function: Part 1 — Plasticity and Creep

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Topics: Blades , Creep , Crystals , Fatigue , Nickel , Plasticity , Anisotropy , Design , Engineering design processes , Finite element methods

Creep and Fatigue of Single Crystal and Directionally Solidified Nickel-Base Blades via a Unified Approach Based on Hill48 Potential Function: Part 2 — Low Cycle Fatigue

Alessandro D. Ramaglia, Paolo Villari

GT 2013; V07AT27A005doi:https://doi.org/10.1115/GT2013-94676

Abstract

View Articletitled, Creep and Fatigue of Single Crystal and Directionally Solidified Nickel-Base Blades via a Unified Approach Based on Hill48 Potential Function: Part 2 — Low Cycle Fatigue

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Topics: Blades , Creep , Crystals , Fatigue , Low cycle fatigue , Nickel , Anisotropy , Calibration , Gas turbines , Modeling

Theoretical Study on the Origin of Radial Cracks in Labyrinth Seal Fins due to Rubbing

Tim Pychynski, Klaus Dullenkopf, Hans-Jörg Bauer

GT 2013; V07AT27A006doi:https://doi.org/10.1115/GT2013-94834

Abstract

View Articletitled, Theoretical Study on the Origin of Radial Cracks in Labyrinth Seal Fins due to Rubbing

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Topics: Fins , Fracture (Materials) , Pressure , Cracking (Materials) , Fracture (Process) , Friction , Heat flux , Thermomechanics , Computer simulation , Finite element model

Risk Estimation for LCF Crack Initiation

Sebastian Schmitz, Hanno Gottschalk, Georg Rollmann, Rolf Krause

GT 2013; V07AT27A007doi:https://doi.org/10.1115/GT2013-94899

Abstract

View Articletitled, Risk Estimation for LCF Crack Initiation

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Topics: Fracture (Materials) , Risk assessment , Compressors , Design , Disks , Failure , Fatigue damage , Finite element analysis , Gas turbines , Low cycle fatigue

Development of a Probabilistic Methodology for Predicting Hot Corrosion Fatigue Crack Growth Life of Gas Turbine Engine Disks

Kwai S. Chan, Michael P. Enright, Jonathan P. Moody

GT 2013; V07AT27A008doi:https://doi.org/10.1115/GT2013-95057

Abstract

View Articletitled, Development of a Probabilistic Methodology for Predicting Hot Corrosion Fatigue Crack Growth Life of Gas Turbine Engine Disks

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Topics: Corrosion , Disks , Fatigue cracks , Gas turbines , Temperature , Alloys , Fracture (Materials) , Cycles , Engines , Failure

On Conservative CTOD Estimation Using Far Crack Deformation Field

Piotr Bednarz, Jaroslaw Szwedowicz

GT 2013; V07AT27A009doi:https://doi.org/10.1115/GT2013-95411

Abstract

View Articletitled, On Conservative CTOD Estimation Using Far Crack Deformation Field

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Topics: Deformation , Fracture (Materials) , Design , Displacement , Fracture mechanics , Maintainability , Modeling , Plasticity , Reliability

Energy-Based Fatigue Life Prediction for Combined Low Cycle and High Cycle Fatigue

Casey M. Holycross, M.-H. Herman Shen, Onome E. Scott-Emuakpor, Tommy J. George

GT 2013; V07AT27A010doi:https://doi.org/10.1115/GT2013-95785

Abstract

View Articletitled, Energy-Based Fatigue Life Prediction for Combined Low Cycle and High Cycle Fatigue

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Topics: Cycles , Fatigue life , High cycle fatigue , Fatigue , Stress , Gas turbines , Engine start-up , Engineering design processes , Flight , Free vibrations

Creep Crack Growth Simulation of Ni-Base Superalloy

Calvin M. Stewart, Ali P. Gordon

GT 2013; V07AT27A011doi:https://doi.org/10.1115/GT2013-96005

Abstract

View Articletitled, Creep Crack Growth Simulation of Ni-Base Superalloy

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Topics: Creep , Damage mechanics , Fracture (Materials) , Simulation , Superalloys

New Simulation Process for the Life Management of the Gas Turbine Rotors

Paolo Di Sisto, Mauro Parodi

GT 2013; V07AT27A012doi:https://doi.org/10.1115/GT2013-96033

Abstract

View Articletitled, New Simulation Process for the Life Management of the Gas Turbine Rotors

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Topics: Gas turbines , Rotors , Simulation , Computer software , Flanges , Computer-aided design , Computer-aided engineering , Engines , Flow (Dynamics) , Inspection

Probabilistic Methods

Probabilistic Structure-Mechanical Assessment of Rotor Discs Considering Geometry Variations

Ilko Reuter, Thomas Weiss, Matthias Voigt, Konrad Vogeler, Hartmut Schlums, Karl-Helmut Becker, Andreas Fischersworring-Bunk

GT 2013; V07AT28A001doi:https://doi.org/10.1115/GT2013-94589

Abstract

View Articletitled, Probabilistic Structure-Mechanical Assessment of Rotor Discs Considering Geometry Variations

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Topics: Disks , Geometry , Rotors , Optimization , Turbines , Aircraft engines , Chain , Compressors , Computer-aided design , Cycles

An Optimal Automated Zone Allocation Approach for Risk Assessment of Gas Turbine Engine Components

Jonathan P. Moody, Michael P. Enright, Wuwei Liang

GT 2013; V07AT28A002doi:https://doi.org/10.1115/GT2013-95129

Abstract

View Articletitled, An Optimal Automated Zone Allocation Approach for Risk Assessment of Gas Turbine Engine Components

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Topics: Gas turbines , Risk assessment , Finite element analysis , Risk , Algorithms , Fracture (Materials) , Fracture (Process) , Aircraft engines , Aviation , Computers

Effect of Manufacturing Variability on Turbine Engine Performance: A Probabilistic Study

Michael Gorelik, Jacob Obayomi, Jack Slovisky, Dan Frias, Howie Swanson, John McFarland, Michael Enright, David Riha

GT 2013; V07AT28A003doi:https://doi.org/10.1115/GT2013-95145

Abstract

View Articletitled, Effect of Manufacturing Variability on Turbine Engine Performance: A Probabilistic Study

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Topics: Gas turbines , Manufacturing , Engines , Blades , Geometry , Uncertainty quantification , Compressors , Computational fluid dynamics , Defense industry , Engineering disciplines

Uncertainties of an Automated Optical 3D Geometry Measurement, Modeling, and Analysis Process for Mistuned IBR Reverse Engineering

Alexander Kaszynski, Joseph A. Beck, Jeffrey M. Brown

GT 2013; V07AT28A004doi:https://doi.org/10.1115/GT2013-95320

Abstract

View Articletitled, Uncertainties of an Automated Optical 3D Geometry Measurement, Modeling, and Analysis Process for Mistuned IBR Reverse Engineering

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Topics: Geometry , Modeling , Reverse engineering , Uncertainty , Calibration , Computer software , Frequency response , Mesh generation , Optical measurement , Physics

Statistical Impact of Manufacturing Tolerances on Axial Gaps Between Vane Segments and the Rotor of Axial Flow Turbo-Compressors

Stefan Weihard, Andreas Hupfer, Hans-Peter Kau

GT 2013; V07AT28A005doi:https://doi.org/10.1115/GT2013-95532

Abstract

View Articletitled, Statistical Impact of Manufacturing Tolerances on Axial Gaps Between Vane Segments and the Rotor of Axial Flow Turbo-Compressors

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Topics: Axial flow , Compressors , Manufacturing , Rotors , Turbochargers , Simulation models , Statistical distributions , Degrees of freedom , Design , Sensitivity analysis

Design for Six Sigma: The First 15 Years

Martha Gardner, Gene Wiggs

GT 2013; V07AT28A006doi:https://doi.org/10.1115/GT2013-95534

Abstract

View Articletitled, Design for Six Sigma: The First 15 Years

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Topics: Design , Cycles , Engineering design , Engineering design processes , Reliability

Calibrating Transient Models With Multiple Responses Using Bayesian Inverse Techniques

Natarajan Chennimalai Kumar, Arun K. Subramaniyan, Liping Wang, Gene Wiggs

GT 2013; V07AT28A007doi:https://doi.org/10.1115/GT2013-95857

Abstract

View Articletitled, Calibrating Transient Models With Multiple Responses Using Bayesian Inverse Techniques

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Topics: Calibration , Transients (Dynamics)

Assessment of Fatigue Reliability of Power Transmission Gearing for Aerospace Propulsion Applications

Stefano Beretta, Mauro Filippini, Pietro Luccarelli, Andrea Motta, Giuseppe Pasquero

GT 2013; V07AT28A008doi:https://doi.org/10.1115/GT2013-96027

Abstract

View Articletitled, Assessment of Fatigue Reliability of Power Transmission Gearing for Aerospace Propulsion Applications

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Topics: Aerospace industry , Fatigue , Propulsion , Reliability , Fatigue strength , Carburization , Fatigue cracks , Gears , High cycle fatigue , Fatigue testing

A Tool for the Structural Integrity Assessment of Turbine Disks: Probabilistic and Numerical Background

M. Madia, S. Beretta, S. Foletti, E. A. Cavalleri

GT 2013; V07AT28A009doi:https://doi.org/10.1115/GT2013-96029

Abstract

View Articletitled, A Tool for the Structural Integrity Assessment of Turbine Disks: Probabilistic and Numerical Background

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Topics: Disks , Turbines , Rotors , Computer software , Design , Gas turbines , Low cycle fatigue , Stress , Temperature

Rotordynamics

An Integrated Product Team Approach to the Development of a Complex Rotor System

Ryan Rollon, Guy Gualtieri, Manny Garcia, Adam Dowd, P. Dean Johnson, John Finnegan, Mike Kobelak, Rich Anthony, John Clark

GT 2013; V07AT29A001doi:https://doi.org/10.1115/GT2013-94073

Abstract

View Articletitled, An Integrated Product Team Approach to the Development of a Complex Rotor System

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Topics: Rotors , Teams , Rotordynamics , Design , Manufacturing , Turbines , Accelerometers , Air Force , Finite element analysis , Particle spin

Experiments With Scaled Foil Bearings in a Test Compressor Rotor

Oscar De Santiago, Víctor Solórzano

GT 2013; V07AT29A002doi:https://doi.org/10.1115/GT2013-94087

Abstract

View Articletitled, Experiments With Scaled Foil Bearings in a Test Compressor Rotor

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Topics: Compressors , Foil bearings , Rotors , Bearings , Compression , Damage , Metals , Stress , Turbomachinery , Vibration

Static Destabilizing Behavior for Gas Annular Seals at High Eccentricity Ratios

Dara W. Childs, Stephen P. Arthur

GT 2013; V07AT29A003doi:https://doi.org/10.1115/GT2013-94201

Abstract

View Articletitled, Static Destabilizing Behavior for Gas Annular Seals at High Eccentricity Ratios

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Topics: Compressibility , Compressors , Design , Flow (Dynamics) , Fluids , High pressure (Physics) , Mach number , Manufacturing , Pistons , Pressure

Comments on a Newly-Identified Destabilizing Rotordynamic Mechanism Arising in Vertical Hydraulic Turbines and the Back Shrouds of Centrifugal Impellers

Dara W. Childs, Ameen Muhammed

GT 2013; V07AT29A004doi:https://doi.org/10.1115/GT2013-94202

Abstract

View Articletitled, Comments on a Newly-Identified Destabilizing Rotordynamic Mechanism Arising in Vertical Hydraulic Turbines and the Back Shrouds of Centrifugal Impellers

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Topics: Hydraulic turbines , Impellers , Damping , Degrees of freedom , Disks , Displacement , Pumps , Yaw , Coke , Pump impellers

Consequential Damage of Blade Failures in Single Shaft Gas Turbines

Hans E. Wettstein

GT 2013; V07AT29A005doi:https://doi.org/10.1115/GT2013-94221

Abstract

View Articletitled, Consequential Damage of Blade Failures in Single Shaft Gas Turbines

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Topics: Blades , Damage , Failure , Gas turbines , Rotors , Design , Engines , Bearings , Risk , Rotation

On the Failure of a Gas Foil Bearing: High Temperature Operation Without Cooling Flow

Keun Ryu, Luis San Andrés

GT 2013; V07AT29A006doi:https://doi.org/10.1115/GT2013-94244

Abstract

View Articletitled, On the Failure of a Gas Foil Bearing: High Temperature Operation Without Cooling Flow

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Topics: Cooling , Failure , Flow (Dynamics) , Foil bearings , High temperature , Rotors , Temperature , Bearings , Reliability , Air flow

Lateral Rotordynamics Response of Low Pressure Gas Turbines Rotors

Marcin Bielecki, Salvatore Costagliola

GT 2013; V07AT29A007doi:https://doi.org/10.1115/GT2013-94265

Abstract

View Articletitled, Lateral Rotordynamics Response of Low Pressure Gas Turbines Rotors

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Topics: Gas turbines , Pressure , Rotordynamics , Rotors , Design , Vibration , American Petroleum Institute , Bearings , Modeling , Performance

Measurements Versus Predictions for the Static and Dynamic Characteristics of a Four-Pad, Rocker-Pivot, Tilting-Pad Journal Bearing

David P. Tschoepe, Dara W. Childs

GT 2013; V07AT29A008doi:https://doi.org/10.1115/GT2013-94302

Abstract

View Articletitled, Measurements Versus Predictions for the Static and Dynamic Characteristics of a Four-Pad, Rocker-Pivot, Tilting-Pad Journal Bearing

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Topics: Journal bearings , Stress , Bearings , Clearances (Engineering) , Stiffness , Rotors , Temperature , Testing , Temperature gradient , Bearing design

The Impact of Hole Depth on the Rotordynamic and Leakage Characteristics of Hole-Pattern-Stator Gas Annular Seals

Dara W. Childs, Stephen Arthur, Naitik J. Mehta

GT 2013; V07AT29A009doi:https://doi.org/10.1115/GT2013-94333

Abstract

View Articletitled, The Impact of Hole Depth on the Rotordynamic and Leakage Characteristics of Hole-Pattern-Stator Gas Annular Seals

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Topics: Leakage , Stators , Compressors , Machinery

Identification of Multi-Concurrent Fault in a Steam Turbine Rotor System Using Model-Based Method

Jingming Chen, Dongxiang Jiang, Chao Liu

GT 2013; V07AT29A010doi:https://doi.org/10.1115/GT2013-94419

Abstract

View Articletitled, Identification of Multi-Concurrent Fault in a Steam Turbine Rotor System Using Model-Based Method

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Topics: Rotors , Steam turbines , Fault diagnosis , Signals , Errors , Finite element methods , Finite element model , Fracture (Materials) , Generators , Maintenance

Experimental Study on Lateral and Torsional Vibration of Cracked Rotor With Torsional Excitation

Chao Liu, Dongxiang Jiang

GT 2013; V07AT29A011doi:https://doi.org/10.1115/GT2013-94422

Abstract

View Articletitled, Experimental Study on Lateral and Torsional Vibration of Cracked Rotor With Torsional Excitation

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Topics: Excitation , Rotors , Vibration , Fracture (Materials) , Accidents , Condition monitoring , Failure , Machinery , Signals

Localizing Unbalance Faults in Rotating Machinery

R. B. Walker, S. Perinpanayagam, I. K. Jennions

GT 2013; V07AT29A012doi:https://doi.org/10.1115/GT2013-94455

Abstract

View Articletitled, Localizing Unbalance Faults in Rotating Machinery

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Topics: Machinery , Disks , Downtime , Maintenance , Sensor placement , Vehicles

Rotordynamic Crack Diagnosis: Distinguishing Crack Depth and Location

Philip Varney, Itzhak Green

GT 2013; V07AT29A013doi:https://doi.org/10.1115/GT2013-94615

Abstract

View Articletitled, Rotordynamic Crack Diagnosis: Distinguishing Crack Depth and Location

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Topics: Fracture (Materials) , Resonance , Condition monitoring , Fatigue cracks , Degrees of freedom , Equations of motion , Hinges , Rotors

Rotor Dynamic Modeling of Gears and Geared Systems

Jason A. Kaplan, Saeid Dousti, Paul E. Allaire, Bradley R. Nichols, Timothy W. Dimond, Alexandrina Untaroiu

GT 2013; V07AT29A014doi:https://doi.org/10.1115/GT2013-94654

Abstract

View Articletitled, Rotor Dynamic Modeling of Gears and Geared Systems

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Topics: Dynamic modeling , Gears , Rotors , Mechanical drives , Dynamic analysis , Resonance , Stability , Trains , Degrees of freedom , Dynamics (Mechanics)

Rotordynamic Force Prediction of an Unshrouded Radial Inflow Turbine Using Computational Fluid Dynamics

Andrew H. Lerche, Grant O. Musgrove, J. Jeffrey Moore, Chris D. Kulhanek, Grant Nordwall

GT 2013; V07AT29A015doi:https://doi.org/10.1115/GT2013-95137

Abstract

View Articletitled, Rotordynamic Force Prediction of an Unshrouded Radial Inflow Turbine Using Computational Fluid Dynamics

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Topics: Computational fluid dynamics , Inflow , Turbines , Flow (Dynamics) , Rotation , Rotors , Transients (Dynamics) , Bearings , Blades , Clearances (Engineering)

Consideration of Complex Support Structure Dynamics in Rotordynamic Assessments

Thomas D. Krüger, Sauro Liberatore, Eric Knopf, Alastair Clark

GT 2013; V07AT29A016doi:https://doi.org/10.1115/GT2013-95196

Abstract

View Articletitled, Consideration of Complex Support Structure Dynamics in Rotordynamic Assessments

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Topics: Computation , Design , Dynamic models , Dynamics (Mechanics) , Modeling , Reliability , Rotors , Theoretical methods , Trains

Correlation of Parameters to Instability and Chaos of a Horizontal Flexible Rotor Ball Bearing System

T. C. Gupta, K. Gupta

GT 2013; V07AT29A017doi:https://doi.org/10.1115/GT2013-95308

Abstract

View Articletitled, Correlation of Parameters to Instability and Chaos of a Horizontal Flexible Rotor Ball Bearing System

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Topics: Ball bearings , Chaos , Rotors , Algorithms , Excitation , Bearings , Dynamic response , Clearances (Engineering) , Differential equations , Dynamic analysis

Journal Bearing Design Retrofit for Better Rotordynamic Characteristics of Process Large Motor-Generator

An Sung Lee, Byung Ok Kim

GT 2013; V07AT29A018doi:https://doi.org/10.1115/GT2013-95381

Abstract

View Articletitled, Journal Bearing Design Retrofit for Better Rotordynamic Characteristics of Process Large Motor-Generator

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Topics: Design , Engines , Generators , Journal bearings , Motors , Bearings , Rotors , Damping , Lubrication , Stiffness

Analytical and Experimental Study of Dynamic Characteristics of Rod Fastened Rotor-Bearing System Under Preload Saturation

Mingjian Lu, Haipeng Geng, Guohui Xu, Lie Yu, Weimin Wang

GT 2013; V07AT29A019doi:https://doi.org/10.1115/GT2013-95397

Abstract

View Articletitled, Analytical and Experimental Study of Dynamic Characteristics of Rod Fastened Rotor-Bearing System Under Preload Saturation

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Topics: Bearings , Rotors , Composite materials , Disks , Rods , Stiffness , Computer simulation , Design , Finite element model , Whirls

Switching Action in Rotor-AMB Systems for Smooth Vibration Control

Muhao Wang, M. Necip Sahinkaya, Patrick S. Keogh

GT 2013; V07AT29A020doi:https://doi.org/10.1115/GT2013-95498

Abstract

View Articletitled, Switching Action in Rotor-AMB Systems for Smooth Vibration Control

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Topics: Rotors , Vibration control , Control equipment , Signals , Transients (Dynamics) , Vibration , Levitation , Machinery , Magnetic bearings , Rotor vibration

Touchdown Bearing Contact Forces in Magnetic Bearing Systems

Fawaz Y. Saket, M. Necip Sahinkaya, Patrick S. Keogh

GT 2013; V07AT29A021doi:https://doi.org/10.1115/GT2013-95510

Abstract

View Articletitled, Touchdown Bearing Contact Forces in Magnetic Bearing Systems

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Topics: Bearings , Magnetic bearings , Contact dynamics , Levitation , Rotors , Stress , Transients (Dynamics) , Design , Force measurement , Machinery

Mathematical Development and Modelling of a Counter Balance Compensating Sleeve for the Suppression of Lateral Vibrations in High Speed Flexible Couplings

Antony Kirk, Grahame Knowles, Jill Stewart, Chris Bingham

GT 2013; V07AT29A022doi:https://doi.org/10.1115/GT2013-95634

Abstract

View Articletitled, Mathematical Development and Modelling of a Counter Balance Compensating Sleeve for the Suppression of Lateral Vibrations in High Speed Flexible Couplings

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Topics: Centrifugal force , Couplings , Deflection , Dynamic models , Finite element model , Industrial gases , Modeling , Stress , Test facilities , Theoretical analysis

A Systematic Approach to Estimate the Impact of the Aerodynamic Force Induced by Rotating Stall in a Vaneless Diffuser on the Rotordynamic Behavior of Centrifugal Compressors

Alessandro Bianchini, Davide Biliotti, Giovanni Ferrara, Lorenzo Ferrari, Elisabetta Belardini, Marco Giachi, Libero Tapinassi, Giuseppe Vannini

GT 2013; V07AT29A023doi:https://doi.org/10.1115/GT2013-95754

Abstract

View Articletitled, A Systematic Approach to Estimate the Impact of the Aerodynamic Force Induced by Rotating Stall in a Vaneless Diffuser on the Rotordynamic Behavior of Centrifugal Compressors

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Topics: Aerodynamics , Compressors , Fluid-dynamic forces , Vaneless diffusers , Vibration , Machinery , Pressure , Impellers , Journal bearings , Probes

Nonparametric Stochastic Modeling of Structural Uncertainty in Rotordynamics: Unbalance and Balancing Aspects

Raghavendra Murthy, Joseph C. Tomei, X. Q. Wang, Marc P. Mignolet, Aly El-Shafei

GT 2013; V07AT29A024doi:https://doi.org/10.1115/GT2013-95779

Abstract

View Articletitled, Nonparametric Stochastic Modeling of Structural Uncertainty in Rotordynamics: Unbalance and Balancing Aspects

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Topics: Modeling , Rotordynamics , Rotors , Uncertainty

Evaluation of Foil Bearing Performance and Nonlinear Rotordynamics of 120kW Oil-Free Gas Turbine Generator

Daejong Kim, An Sung Lee, Bum Seog Choi

GT 2013; V07AT29A025doi:https://doi.org/10.1115/GT2013-95800

Abstract

View Articletitled, Evaluation of Foil Bearing Performance and Nonlinear Rotordynamics of 120kW Oil-Free Gas Turbine Generator

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Topics: Foil bearings , Gas turbines , Generators , Rotordynamics

Forced Response of a Flexible Rotor With Squeeze Film Damper Under Parametric Change

Feng He, Paul E. Allaire, Saeid Dousti, Alexandrina Untaroiu

GT 2013; V07AT29A026doi:https://doi.org/10.1115/GT2013-95861

Abstract

View Articletitled, Forced Response of a Flexible Rotor With Squeeze Film Damper Under Parametric Change

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Topics: Dampers , Rotors , Disks , Dynamics (Mechanics) , Fluids , Inertia (Mechanics) , Springs , Stability , Stiffness , Stress

Structural Change Quantification in Rotor Systems Based on Measured Resonance and Antiresonance Frequencies

Adam C. Wroblewski, Alexander H. Pesch, Jerzy T. Sawicki

GT 2013; V07AT29A027doi:https://doi.org/10.1115/GT2013-95930

Abstract

View Articletitled, Structural Change Quantification in Rotor Systems Based on Measured Resonance and Antiresonance Frequencies

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Topics: Antiresonance , Resonance , Rotors , Frequency response , Actuators , Ball bearings , Finite element model , Optimization algorithms

Leakage and Rotordynamics Numerical Study of Circular Grooved and Rectangular Grooved Labyrinth Seals

Emanuel Marsis, Gerald Morrison

GT 2013; V07AT29A028doi:https://doi.org/10.1115/GT2013-96001

Abstract

View Articletitled, Leakage and Rotordynamics Numerical Study of Circular Grooved and Rectangular Grooved Labyrinth Seals

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Topics: Leakage , Rotordynamics , Design , Computational fluid dynamics , Simulation , Damping , Pressure , Turbomachinery

Damping Technologies

Conceptual Analysis of the Non-Linear Forced Response of Aerodynamically Unstable Bladed-Discs

Roque Corral, Juan Manuel Gallardo, Rahul Ivaturi

GT 2013; V07AT32A001doi:https://doi.org/10.1115/GT2013-94851

Abstract

View Articletitled, Conceptual Analysis of the Non-Linear Forced Response of Aerodynamically Unstable Bladed-Discs

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Topics: Disks , Excitation , Friction , Vibration , Flutter (Aerodynamics) , Blades , Energy dissipation , Engines , Limit cycles , Springs

Modelling and Validation of the Nonlinear Dynamic Behaviour of Bolted Flange Joints

C. W. Schwingshackl, D. Di Maio, J. S. Green

GT 2013; V07AT32A002doi:https://doi.org/10.1115/GT2013-95029

Abstract

View Articletitled, Modelling and Validation of the Nonlinear Dynamic Behaviour of Bolted Flange Joints

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Topics: Bolted flanges , Modeling , Engines , Flanges , Aircraft engines , Design , Stress , Blades , Dampers , Damping

Development of a Continuous Coupling of Steam Turbine Blades by Contact of Shrouds

Jan Hlous, Zdenek Kubin, Josef Kellner, Tomas Misek, Lubos Prchlik

GT 2013; V07AT32A003doi:https://doi.org/10.1115/GT2013-95434

Abstract

View Articletitled, Development of a Continuous Coupling of Steam Turbine Blades by Contact of Shrouds

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Topics: Blades , Steam turbines , Manufacturing , Design , Disks , Damping , Finite element methods , Finite element model , Excitation , Geometry

Damping Identification and its Comparison for Various Types of Blade Couplings

Zdenek Kubin, Vaclav Polreich, Vaclav Cerny, Petra Babkova, Lubos Prchlik

GT 2013; V07AT32A004doi:https://doi.org/10.1115/GT2013-95438

Abstract

View Articletitled, Damping Identification and its Comparison for Various Types of Blade Couplings

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Topics: Blades , Couplings , Damping , Disks , Mode shapes , Vibration , Dampers , Friction , Manufacturing , Steam turbines

Analysis of Nonlinear Vibrations Upon Wear-Induced Loss of Friction Dampers in Tuned and Mistuned Bladed Discs

E. P. Petrov

GT 2013; V07AT32A005doi:https://doi.org/10.1115/GT2013-95566

Abstract

View Articletitled, Analysis of Nonlinear Vibrations Upon Wear-Induced Loss of Friction Dampers in Tuned and Mistuned Bladed Discs

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Topics: Dampers , Disks , Friction , Vibration , Wear , Finite element analysis , Modeling , Turbines

A Wireless Vibration Control Technique for Gas Turbine Blades Using Piezoelectric Plates and Contactless Energy Transfer

Fabio Botta, Nigel Marx, Christoph Schwingshackl, Giovanni Cerri, Daniele Dini

GT 2013; V07AT32A006doi:https://doi.org/10.1115/GT2013-95666

Abstract

View Articletitled, A Wireless Vibration Control Technique for Gas Turbine Blades Using Piezoelectric Plates and Contactless Energy Transfer

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Topics: Blades , Energy transformation , Gas turbines , Plates (structures) , Vibration control , Vibration , Finite element analysis , Rotating beams , Aerospace industry , Cantilever beams