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

ASME Turbo Expo 2014: Turbine Technical Conference and Exposition

June 16–20, 2014

Düsseldorf, Germany

Conference Sponsors:

ISBN:

978-0-7918-4576-9

In This Volume

Emerging Methods in Design and Engineering (11)
Fatigue, Fracture and Life Prediction (22)
Rotordynamics (39)
Damping Technologies (7)

Volume 7A: Structures and Dynamics

Emerging Methods in Design and Engineering

Study of Parametric and Non-Parametric Optimization of a Rotor-Bearing System

Youngwon Hahn, John I. Cofer, IV

GT 2014; V07AT28A001doi:https://doi.org/10.1115/GT2014-25095

Abstract

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Topics: Bearings , Optimization , Rotors , Topology , Computer-aided design , Rotordynamics , Atoms , Bearing design , Combustion chambers , Compressors

On the Reduction of the Pre-Processing Effort and the Application of a Contact Meshing Approach for Complex Jet Engine Component Assemblies

W. Hufenbach, A. Hornig, H. Böhm, A. Langkamp, A. Keskin

GT 2014; V07AT28A002doi:https://doi.org/10.1115/GT2014-25425

Abstract

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Topics: Compressors , Computer software , Finite element analysis , Geometry , Jet engines , Pressure , Structural elements (Construction)

New Approach of Whole Engine Structural System Design

Masaharu Andoh, Tatsuhito Honda, Kikuo Takamatsu

GT 2014; V07AT28A003doi:https://doi.org/10.1115/GT2014-25601

Abstract

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Topics: Design , Engines , Jet engines , Fuel efficiency , Robustness , Engine design , Taguchi methods

Topology Optimization in Structural Design of a LP Turbine Guide Vane: Potential of Additive Manufacturing for Weight Reduction

Joona Seppälä, Andreas Hupfer

GT 2014; V07AT28A004doi:https://doi.org/10.1115/GT2014-25637

Abstract

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Topics: Additive manufacturing , Guide vanes , Optimization , Structural design , Topology , Turbines , Weight (Mass) , Design , Geometry , Aircraft engines

Redesign of a High-Pressure Compressor Blade Accounting for Nonlinear Structural Interactions

Alain Batailly, Mathias Legrand, Antoine Millecamps, Sèbastien Cochon, François Garcin

GT 2014; V07AT28A005doi:https://doi.org/10.1115/GT2014-25673

Abstract

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Topics: Accounting , Blades , Compressors , High pressure (Physics) , Design , Aircraft engines , Coating processes , Coatings , Residual stresses , Rotors

Research of an Advanced Turbine Disk for High Thrust-Weight Ratio Engine

Xiuli Shen, Shaojing Dong, Zhiying Chen

GT 2014; V07AT28A006doi:https://doi.org/10.1115/GT2014-25715

Abstract

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Topics: Disks , Engines , Thrust , Turbines , Weight (Mass) , Design , Optimization , Stress , Topology , Finite element analysis

Higher Order Finite Element Meshes for Centrifugal Impeller Blade Analyses Using Pointwise

Mikhail Grigoriev, Travis Carrigan, David Garlisch, James Hitt

GT 2014; V07AT28A007doi:https://doi.org/10.1115/GT2014-25734

Abstract

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Topics: Blades , Finite element analysis , Impellers , Stress , Failure , Modal analysis , Computational fluid dynamics , Computer software , Diffusers , Failure mechanisms

Material Property Determination of Vibration Fatigued DMLS and Cold-Rolled Nickel Alloys

Onome Scott-Emuakpor, Tommy George, Joseph Beck, Jeremy Schwartz, Casey Holycross, M. H. Herman Shen, Joseph Slater

GT 2014; V07AT28A008doi:https://doi.org/10.1115/GT2014-26247

Abstract

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Topics: Materials properties , Nickel alloys , Vibration , Tensile strength , Alloys , Cycles , Fatigue , Sintering , Density , Displacement

Finite Element Approximation of Wave Propagation in Composite Material With Asymptotic Homogenization

Bhuiyan Shameem Mahmood Ebna Hai, Markus Bause

GT 2014; V07AT28A009doi:https://doi.org/10.1115/GT2014-26314

Abstract

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Topics: Approximation , Composite materials , Finite element analysis , Wave propagation , Elastic waves , Fibers , Fluid structure interaction , Structural health monitoring , Advanced materials , Aerospace industry

Quick Aeromechanical Assessment of Turbine Blades Based on Shell Element Based Models

Suryarghya Chakrabarti, Letian Wang, K. M. K. Genghis Khan

GT 2014; V07AT28A010doi:https://doi.org/10.1115/GT2014-26328

Abstract

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Topics: Shells , Turbine blades , Design , Airfoils , Disks , Finite element model , Blades , Computation , Conceptual design , Gas turbines

Experimental and Numerical Investigation of Non-Impregnated Aramid Fibers and Winding for Combined Fan Case

Anastasia N. Krundaeva, Yury N. Shmotin, Roman A. Didenko, Dmitry V. Karelin

GT 2014; V07AT28A011doi:https://doi.org/10.1115/GT2014-27096

Abstract

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Topics: Aramid fibers , Winding (process) , Engines , Containment systems , Containment , Modeling , Blades , Finite element analysis , Metals , Simulation

Fatigue, Fracture and Life Prediction

Crack Propagation Life Calculation of an Aircraft Compressor Blade due to Bird Ingestion

Srinivasa R. Jammi, R. Rzadkowski

GT 2014; V07AT29A001doi:https://doi.org/10.1115/GT2014-25010

Abstract

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Topics: Aircraft , Blades , Compressors , Crack propagation , Damping , Pressure , Computational fluid dynamics , Flow (Dynamics) , Fracture mechanics , Resonance

LCF Assessment of Electron-Beam-Welded Notched Parts of Nickel-Based Superalloy Inconel 718

Huang Yuan, Jie Fang

GT 2014; V07AT29A002doi:https://doi.org/10.1115/GT2014-25015

Abstract

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Topics: Computation , Electrons , Fatigue , Fatigue life , Finite element analysis , Finite element methods , Finite element model , Mechanical behavior , Nickel , Simulation

Influence of Alloy Behavior on Multiaxial Fatigue Lifing Criteria for Turbine Disk Bores

D. J. Greving, P. T. Kantzos, M. N. Menon

GT 2014; V07AT29A003doi:https://doi.org/10.1115/GT2014-25018

Abstract

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Topics: Alloys , Disks , Fatigue , Turbines , Stress , Brittleness , Compressors , Failure , Grain size , Indium alloys

Determination of Allowable FOD Defects Sizes on the Surface of Gas-Turbine Engine Stator Parts Based on Stress-Concentration Factors

Alexandr Pakhomenkov, Denis Slobodskoy

GT 2014; V07AT29A004doi:https://doi.org/10.1115/GT2014-25019

Abstract

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Topics: Engines , Gas turbines , Stators , Stress concentration , Damage , Safety , Inspection , Reliability , Wear , Aircraft engines

Stress–Strain State Prediction of High-Temperature Turbine Single Crystal Blades Using Developed Plasticity and Creep Models

Boris Vasilyev

GT 2014; V07AT29A005doi:https://doi.org/10.1115/GT2014-25229

Abstract

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Topics: Blades , Creep , Crystals , High temperature , Plasticity , Stress , Turbines , Anisotropy , Finite element analysis , Computer software

Assessment of Fracture Toughness and Fatigue Crack Growth Threshold of a Welded Joint Constituent of a Steam Turbine LP Rotor

M.-H. Herman Shen, Sajedur Akanda, Xia Liu, Peng Wang

GT 2014; V07AT29A006doi:https://doi.org/10.1115/GT2014-25422

Abstract

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Topics: Fatigue cracks , Fracture toughness , Rotors , Steam turbines , Welded joints , Fracture (Materials) , ASTM International , Base metals , Crack propagation , Displacement

Crack Growth Under Cyclic Loading and Plasticity Conditions

Jaroslaw Szwedowicz, Piotr Bednarz, Christoph Meilgen, Jeff Samuelson

GT 2014; V07AT29A007doi:https://doi.org/10.1115/GT2014-25450

Abstract

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Topics: Fracture (Materials) , Plasticity , Stress , Cycles , Fracture mechanics , Alloys , Deformation , Displacement , Engines , Failure

Fatigue Crack Growth of Multiple Load Path Structure Under Combined Fatigue Loading: Part I — Numerical Simulation

Dianyin Hu, Jiaming Wei, Huawei Liu, Wulin Si, Rongqiao Wang

GT 2014; V07AT29A008doi:https://doi.org/10.1115/GT2014-25719

Abstract

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Topics: Computer simulation , Fatigue , Fatigue cracks , Stress , Fracture (Materials) , Dynamic response analysis , Fatigue analysis , Numerical analysis , Turbines , Crack propagation

Investigation on Material’s Creep Strength Variation Among Different Locations of Directional Solidified Turbine Blades

Kai Zhang, Xiaojun Yan

GT 2014; V07AT29A009doi:https://doi.org/10.1115/GT2014-25803

Abstract

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Topics: Creep , Turbine blades , Casting , Stress , Temperature , Aircraft engines , Design , Geometry , Nickel , Rupture

Life Fraction Hardening Applied to a Modified Theta Projection Creep Model for a Nickel-Based Super-Alloy

W. David Day, Ali P. Gordon

GT 2014; V07AT29A010doi:https://doi.org/10.1115/GT2014-25881

Abstract

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Topics: Alloys , Creep , Hardening , Nickel , Failure , Stress , Temperature , Work hardening , Design , Finite element analysis

Transient Thermal Analysis and Visco-Plastic Damage Model for Life Prediction of Turbine Components

A. Staroselsky, T. J. Martin, B. Cassenti

GT 2014; V07AT29A011doi:https://doi.org/10.1115/GT2014-26034

Abstract

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Topics: Airfoils , Blades , Computational fluid dynamics , Computers , Constitutive equations , Crystals , Cycles , Damage , Deformation , Engines

An Energy-Based Framework to Determine the Fatigue Strength and Fatigue Ductility Parameters for LCF/HCF Life Assessment of Turbine Materials

M.-H. Herman Shen, Sajedur Akanda

GT 2014; V07AT29A012doi:https://doi.org/10.1115/GT2014-26149

Abstract

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Topics: Ductility , Fatigue , Fatigue strength , High cycle fatigue , Turbines , Fracture toughness , Fatigue life , Stress , Aluminum , Approximation

Deformation Modeling and Lifetime Prediction of Ni-Base Gas Turbine Blade Alloys Under TMF-Conditions

Stefan Grützner, Bernard Fedelich, Birgit Rehmer, Maria Mosquera

GT 2014; V07AT29A013doi:https://doi.org/10.1115/GT2014-26332

Abstract

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Topics: Alloys , Blades , Deformation , Gas turbines , Modeling , Damage , Creep , Fatigue , Thermomechanics

Residual Life Assessment of a Critical Component of a Gas Turbine: Achievements and Challenges

Wieslaw Beres, Zhong Zhang, David Dudzinski, W. R. Chen, X. J. Wu

GT 2014; V07AT29A014doi:https://doi.org/10.1115/GT2014-26423

Abstract

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Topics: Gas turbines , Fracture (Materials) , Engines , Particle spin , Rotation , Spin (Aerodynamics) , Crack propagation , Cycles , Damage , Fatigue cracks

Combined Low and High Cycle Fatigue Tests on Full Scale Turbine Blades

Xia Chen, Xiaojun Yan

GT 2014; V07AT29A015doi:https://doi.org/10.1115/GT2014-26569

Abstract

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Topics: High cycle fatigue , Turbine blades , Stress , Cycles , Vibration , Design , Blades , Life testing

Fatigue Crack Growth of Multiple Load Path Structure Under Combined Fatigue Loading: Part II — Experiment Study

Huawei Liu, Dianyin Hu, Rongqiao Wang, Xiuli Shen, Jiang Fan

GT 2014; V07AT29A016doi:https://doi.org/10.1115/GT2014-26681

Abstract

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Topics: Fatigue , Fatigue cracks , Stress , Fracture (Materials) , Combined cycles , Turbine components , Turbines , Dimensions , Temperature , Computer simulation

Effect of Crystallographic Properties on Low Cycle Fatigue Strength at Elevated Temperature for Ni-Based Directionally Solidified Superalloy

Takashi Yokoyama, Masaru Sekihara

GT 2014; V07AT29A017doi:https://doi.org/10.1115/GT2014-26704

Abstract

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Topics: Low cycle fatigue , Superalloys , Temperature , Fracture (Materials) , Grain boundaries , Electron backscatter diffraction , Crystal structure , Crystals , Cycles , Finite element analysis

Influence of Creep on Low-Cycle Fatigue Life Assessment of Ultra-Supercritical Steam Turbine Rotor

W. Z. Wang, J. H. Zhang, H. F. Liu, Y. Z. Liu

GT 2014; V07AT29A018doi:https://doi.org/10.1115/GT2014-26757

Abstract

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Topics: Creep , Low cycle fatigue , Rotors , Steam turbines , Turbines , Damage , Stress , High temperature creep , Finite element analysis , Pressure

Rotor Lifecycle Management Program

Michal Wrobel, Mark Richter, Rene Zimmermann, Holger Kiewel, Andreas Ullrich

GT 2014; V07AT29A019doi:https://doi.org/10.1115/GT2014-26761

Abstract

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Topics: Life cycle management , Rotors , Design , Maintenance , Gas turbines , Inspection , Analytical design , Electromagnetic scattering , Energy generation , Engines

Critical Speed of Flawed Rotors: Global vs Local Approach

L. Scolavino, S. Beretta, M. Madia, U. Zerbst

GT 2014; V07AT29A020doi:https://doi.org/10.1115/GT2014-26881

Abstract

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Topics: Damage , Design , Disks , Failure , Finite element analysis , Fracture (Materials) , Machinery , Rotors , Safety , Testing

Microscopic Analysis of Fatigue Damage Accumulation in TiAl Intermetallics

Luca Patriarca, Can Içöz, Mauro Filippini, Stefano Beretta

GT 2014; V07AT29A021doi:https://doi.org/10.1115/GT2014-27091

Abstract

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Topics: Damage , Fatigue analysis , Titanium aluminide , Alloys , Design , Fatigue , Additive manufacturing , Advanced materials , Aircraft , Cathode ray oscilloscopes

An Analytical Stress-Strain Hysteresis Model for a Directionally-Solidified Superalloy Under Thermomechanical Fatigue

Thomas Bouchenot, Ali P. Gordon, Sachin Shinde, Phillip Gravett

GT 2014; V07AT29A022doi:https://doi.org/10.1115/GT2014-27329

Abstract

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Topics: Fatigue , Stress , Superalloys , Thermomechanics , Creep , Constitutive equations , Design , Plasticity , Anisotropy , Blades

Rotordynamics

Dynamical Analysis on Circumferential Rod Fastening Rotor System in Heavy-Duty Gas Turbine

Huiguang Li, Lihua Yang, Weimin Wang, Shiquan Zhao, Xueyun Liu, Xiaobing Qi, Lie Yu, Jian Zhou

GT 2014; V07AT31A001doi:https://doi.org/10.1115/GT2014-25055

Abstract

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Topics: Gas turbines , Rotors , Stiffness , Stress , Surface roughness , Composite materials , Cooling , Deformation , Dynamic analysis , Finite element analysis

Faults Diagnosis in Rotating Machines Using Higher Order Spectra

Akilu Yunusa-Kaltungo, Jyoti K. Sinha

GT 2014; V07AT31A002doi:https://doi.org/10.1115/GT2014-25090

Abstract

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Topics: Machinery , Spectra (Spectroscopy) , Vibration , Condition monitoring , Fracture (Materials) , Rotors , Signal processing , Signals

Whole Engine Interaction in a Bladed Rotor-to-Stator Contact

Marie-Océane Parent, Fabrice Thouverez, Fabrice Chevillot

GT 2014; V07AT31A003doi:https://doi.org/10.1115/GT2014-25253

Abstract

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Topics: Engines , Rotors , Stators , Blades , Aircraft engines , Computer simulation , Couplings , Mechanical engineers , Stability , Structural elements (Construction)

Unbalance Identification and Balancing of Nonlinear Rotodynamic Systems

Sergio G. Torres Cedillo, Philip Bonello

GT 2014; V07AT31A004doi:https://doi.org/10.1115/GT2014-25290

Abstract

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Topics: Aircraft engines , Bearings , Dampers , Engines , High pressure (Physics) , Instrumentation , Machinery , Manufacturing , Noise (Sound) , Rotors

Dynamic Analysis of Anisotropic Asymmetric Rotor-Bearing System Based on Three-Dimensional Finite Element Method

Weimeng Ma, Jianjun Wang

GT 2014; V07AT31A005doi:https://doi.org/10.1115/GT2014-25304

Abstract

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Topics: Anisotropy , Bearings , Dynamic analysis , Finite element methods , Rotors , Differential equations , Finite element analysis , Modeling , Stability , Stators

Full Load Stability Test (FLST) on LNG Compressor

Alberto Guglielmo, Nicola Mitaritonna, Michael Catanzaro, Mirko Libraschi

GT 2014; V07AT31A006doi:https://doi.org/10.1115/GT2014-25353

Abstract

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Topics: Compressors , Liquefied natural gas , Stability , Stress , Vibration , Excitation , Signals , Probes , Rotors , Algorithms

Test Results and Analytical Predictions for MIL-STD-167 Vibration Testing of a Direct Drive Compressor Supported on AMB

Lawrence A. Hawkins, Rasish K. Khatri, Koman B. Nambiar

GT 2014; V07AT31A007doi:https://doi.org/10.1115/GT2014-25366

Abstract

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Topics: Compressors , Testing , Vibration , Rotors , Actuators , Magnetic bearings , Navy , Bearings , Control algorithms , Currents

The Influences of Thermal Effects Induced by the Light-Rub Against the Brush Seal to the Rotordynamics of Turbo Machines

Robert Fay, Daniel Kreuzer, Robert Liebich

GT 2014; V07AT31A008doi:https://doi.org/10.1115/GT2014-25395

Abstract

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Topics: Machinery , Rotordynamics , Temperature effects , Turbochargers , Rotors , Temperature distribution , Stability , Turbomachinery , Vibration , Construction

Rotordynamic Investigation of Spiral Vibrations: Thermal Mode Equation Development and Implementation to Combined-Cycle Power Train

Mateusz Golebiowski, Rainer Nordmann, Eric Knopf

GT 2014; V07AT31A009doi:https://doi.org/10.1115/GT2014-25430

Abstract

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Topics: Combined cycles , Trains , Vibration , Heat , Rotors , Machinery , Stability , Carbon , Excitation , Finite element methods

Detection and Monitoring of Shaft Misalignment in Rotors Using Hilbert Huang Transform

N. Harish Chandra, A. S. Sekhar

GT 2014; V07AT31A010doi:https://doi.org/10.1115/GT2014-25437

Abstract

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Topics: Rotors , Emission spectroscopy , Finite element analysis , Machinery , Maintenance , Signal to noise ratio , Spectroscopy , Testing , Wavelet transforms

Rotordynamic Performance of a Negative-Swirl Brake for a Tooth-on-Stator Labyrinth Seal

Dara W. Childs, James E. Mclean, Jr., Min Zhang, Stephen P. Arthur

GT 2014; V07AT31A011doi:https://doi.org/10.1115/GT2014-25577

Abstract

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Topics: Brakes , Stators , Stiffness , Damping , Design , Flow (Dynamics) , Leakage , Pressure , Rotation , Computational fluid dynamics

The Necessity of a Third Balance Plane for Generator Rotor Field Balancing

John J. Yu

GT 2014; V07AT31A012doi:https://doi.org/10.1115/GT2014-25706

Abstract

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Topics: Generators , Rotors , Nondestructive evaluation , Vibration , Excitation systems , Bearings

Method for Selecting Master Degrees of Freedom for Rotating Substructure

Yanfei Zuo, Jianjun Wang, Weimeng Ma, Xue Zhai, Xinyu Yao

GT 2014; V07AT31A013doi:https://doi.org/10.1115/GT2014-25716

Abstract

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Topics: Degrees of freedom , Rotors , Damping , Errors , High pressure (Physics) , Kinetic energy , Mode shapes , Particle spin , Rotation , Spin (Aerodynamics)

Analysis of Middle Bearing Failure in Rotor Jet Engine Using Tip-Timing and Tip-Clearance Technique

Edward Rokicki, Paweł Majewski, Romuald Rzadkowski, Ryszard Szczepanik, Jarosław Spychała, Marcin Drewczyński

GT 2014; V07AT31A014doi:https://doi.org/10.1115/GT2014-25722

Abstract

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Topics: Bearings , Clearances (Engineering) , Failure , Jet engines , Rotors , Blades , Engines , Aircraft , Aircraft engines , Compressors

A Prototype Left Ventricular Assist Artificial Heart Pump: An Integrated Permanent Magnet and Active Magnetic Bearing Suspension System

Paul Allaire, Wei Jiang, Arunvel Kailasan, Timothy Dimond

GT 2014; V07AT31A015doi:https://doi.org/10.1115/GT2014-25957

Abstract

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Topics: Artificial hearts , Engineering prototypes , Magnetic bearings , Permanent magnets , Pumps , Suspension systems , Magnetic levitation , Design , Fluids , Stress

Coupled Lateral and Torsional Nonlinear Transient Solver With Application to Flexible Rotor-Bearing System

Jianming Cao, Tim Dimond, Paul Allaire

GT 2014; V07AT31A016doi:https://doi.org/10.1115/GT2014-25996

Abstract

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Topics: Bearings , Rotors , Transients (Dynamics) , Dampers , Blades , Disks , Engines , Journal bearings , Motors , Nonlinear equations

Compression Mechanics of the SC-MR Support for Rotor System

Yanhong Ma, Haixiong Zhu, Chan Wang, Hengwen Qiao, Jie Hong

GT 2014; V07AT31A017doi:https://doi.org/10.1115/GT2014-26006

Abstract

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Topics: Compression , Rotors , Stiffness , Damping , Metals , Rubber , Design , Turbochargers , Finite element methods , Finite element model

Design and Analysis of a Unique Flywheel Energy Storage System: An Integrated Flywheel, Motor/Generator and Magnetic Bearing Configuration

Arunvel Kailasan, Timothy Dimond, Paul Allaire, David Sheffler

GT 2014; V07AT31A018doi:https://doi.org/10.1115/GT2014-26033

Abstract

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Topics: Design , Energy storage , Engines , Flywheels , Generators , Magnetic bearings , Motors , Rotors , Electronics , Kinetic energy

Study on the Stiffness Loss and its Affecting Factors of the Spline Joint Used in Rotor Systems

Qicheng Zhang, Weixi Li, Zhichao Liang, Jie Hong

GT 2014; V07AT31A019doi:https://doi.org/10.1115/GT2014-26176

Abstract

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Topics: Rotors , Splines , Stiffness , Mechanical properties , Stress , Displacement , Finite element methods , Rotordynamics , Simulation models , Structural design

Study on the Stiffness Loss and the Dynamic Influence on Rotor System of the Bolted Flange Joint

Cun Wang, Dayi Zhang, Xiaobin Zhu, Jie Hong

GT 2014; V07AT31A020doi:https://doi.org/10.1115/GT2014-26191

Abstract

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Topics: Bolted flanges , Rotors , Stiffness , Stress , Dynamics (Mechanics) , Mechanical properties , Compression , Design , Dynamic analysis , Finite element methods

Methods for Generating Rotordynamic Models in Retrofits of Large Steam Turbines From On-Site Measurements

Florian C. Hiss, Gerta Zimmer

GT 2014; V07AT31A021doi:https://doi.org/10.1115/GT2014-26217

Abstract

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Topics: Steam turbines , Turbines , Computer-aided design , Design , Finite element analysis , Frequency response , Geometry , Lasers , Modal analysis , Modeling

Forward and Backward Mode Excitation of Flexible Rotor Supported by Tilting Pad Bearings: Numerical and Experimental Investigation

Weimin Wang, Qihang Li, Jinji Gao, Timothy Dimond, Paul Allaire

GT 2014; V07AT31A022doi:https://doi.org/10.1115/GT2014-26275

Abstract

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Topics: Bearings , Excitation , Rotors , Machinery , Compressors , Engineering simulation , Frequency response , Simulation , Simulation results , Stability

Operational Modal Analysis of Torsional Modes in Rotating Machinery

Eoin Peter Carden, Mattias Lindblad

GT 2014; V07AT31A023doi:https://doi.org/10.1115/GT2014-26305

Abstract

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Topics: Machinery , Modal analysis , Excitation , Rotors , Stress , Trains , Compressors , Damping , Diesel engines , Electric motors

Operational Modal Analysis of Lateral Rotordynamic Modes of Rotating Machinery

Eoin Peter Carden, Stefano Morosi

GT 2014; V07AT31A024doi:https://doi.org/10.1115/GT2014-26308

Abstract

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Topics: Machinery , Modal analysis , Excitation , Probes , Bearings , Rotors , Stability , Testing , Turbomachinery , Whirls

Three-Dimensional Structural Evaluation of a Gas Turbine Engine Rotor

Partha S. Das

GT 2014; V07AT31A025doi:https://doi.org/10.1115/GT2014-26375

Abstract

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Topics: Gas turbines , Rotors , Engines , Modeling , Steady state , Transients (Dynamics) , Finite element analysis , Industrial gases , Airfoils , Blades

Analysis of the Rotordynamic Response of a Centrifugal Compressor Subject to Aerodynamic Loads due to Rotating Stall

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

GT 2014; V07AT31A026doi:https://doi.org/10.1115/GT2014-26395

Abstract

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Topics: Compressors , Stress , Vibration , Diffusers , Excitation , Flow (Dynamics) , Databases , Impellers , Industrial research , Machinery

Analysis of the Stiffness of Hirth Couplings in Rod-Fastened Rotors Based on Experimental Modal Parameter Identification

Xin Liu, Qi Yuan, Yang Liu, Jin Gao

GT 2014; V07AT31A027doi:https://doi.org/10.1115/GT2014-26448

Abstract

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Topics: Couplings , Rotors , Stiffness , Finite element methods , Stress , Gas turbines , Compressive stress , Disks , Elastic moduli , Modal analysis

Oil Whip Elimination Using Fuzzy Logic Controller

A. S. Dimitri, J. Mahfoud, A. El-Shafei

GT 2014; V07AT31A028doi:https://doi.org/10.1115/GT2014-26619

Abstract

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Topics: Control equipment , Fuzzy logic , Bearings , Rotors , Vibration , Control algorithms , Electromagnetic actuators , Engineering prototypes , Geometry , Journal bearings

Last Stage Blade Coupled Shaft Torsional Vibration Analysis of 1000 MW Steam Turbine Generator Set by a Reduced 3D Finite Element Method

Zi-Li Xu, Baitong Dou, Xiaoping Fan, Yu Fang, Shouhong Cao, Jianlu Wang

GT 2014; V07AT31A029doi:https://doi.org/10.1115/GT2014-26651

Abstract

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Topics: Blades , Finite element methods , Generators , Steam turbines , Vibration analysis , Vibration , Degrees of freedom , Disks , Inertia (Mechanics) , Pressure

Stability of a Cracked Rotor Subjected to Parametric Excitation

Jerzy Sawicki, Zbigniew Kulesza

GT 2014; V07AT31A030doi:https://doi.org/10.1115/GT2014-26741

Abstract

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Topics: Excitation , Rotors , Stability , Fracture (Materials) , Resonance , Vibration , Antiresonance , Crack detection , Damping , Rotation

Non-Linear Dynamics of a Simplified Model of an Overhung Rotor Subjected to Intermittent Annular Rubs

Andrea Zilli, Robin J. Williams, David J. Ewins

GT 2014; V07AT31A031doi:https://doi.org/10.1115/GT2014-26826

Abstract

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Topics: Nonlinear dynamics , Rotors , Stability , Stators , Stiffness , Synchronization , Transients (Dynamics) , Whirls , Bifurcation , Blades

Modeling of Flexible Coupling to Connect Misaligned Flexible Rotors Supported on Ball Bearings

T. C. Gupta, K. Gupta

GT 2014; V07AT31A032doi:https://doi.org/10.1115/GT2014-26891

Abstract

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Topics: Ball bearings , Modeling , Rotors , Stiffness , Dynamic response , Deformation , Finite element model , Stress , Clearances (Engineering)

Gas-Expanded Lubricant Performance and Effects on Rotor Stability in Turbomachinery

Brian K. Weaver, Timothy W. Dimond, Jason A. Kaplan, Alexandrina Untaroiu, Andres F. Clarens

GT 2014; V07AT31A033doi:https://doi.org/10.1115/GT2014-26980

Abstract

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Topics: Lubricants , Rotors , Stability , Turbomachinery , Bearings , Compressors , Stiffness , Fluids , Machinery , Damping

Stabilizing a 46 MW Multi-Stage Utility Steam Turbine Using Integral Squeeze Film Bearing Support Dampers

Bugra Ertas, Vaclav Cerny, Jongsoo Kim, Vaclav Polreich

GT 2014; V07AT31A034doi:https://doi.org/10.1115/GT2014-27066

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Topics: Bearings , Dampers , Steam turbines , Vibration , Rotors , Stress , Clearances (Engineering) , Geometry , Machinery , Sealing (Process)

Identification of Nonlinear Instabilities in Rotors Supported on Gas Bearing

Claudia Aide González, Juan Carlos Jáuregui, Oscar de Santiago

GT 2014; V07AT31A035doi:https://doi.org/10.1115/GT2014-27215

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Topics: Gas bearings , Rotors , Phase diagrams , Wavelets , Bearings , Dimensions , Kinetic energy , Potential energy , Pressure , Shapes

Nonlinear Dynamic Study on Effects of Rub-Impact Caused by Oil-Rupture in a Multi-Shafts Turbine With a Squeeze Film Damper

T. N. Shiau, C. R. Wang, D. S. Liu, W. C. Hsu, T. H. Young

GT 2014; V07AT31A036doi:https://doi.org/10.1115/GT2014-27221

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Topics: Dampers , Rupture , Turbines , Bearings , Bifurcation , Rotors , Approximation , Ball bearings , Clearances (Engineering) , Equations of motion

Rotordynamic Behavior of 225 kW (300 HP) Class PMS Motor-Generator System Supported by Gas Foil Bearings

Bok Seong Choe, Tae Ho Kim, Chang Ho Kim, Yong Bok Lee

GT 2014; V07AT31A037doi:https://doi.org/10.1115/GT2014-27286

Abstract

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Topics: Engines , Foil bearings , Generators , Motors , Rotors , Bearings , Damping , Delays , Inspection , Journal bearings

Rotordynamic Validation of an Ultra High Speed Multistage Centrifugal Compressor Stacked Rotor

Giuseppe Vannini

GT 2014; V07AT31A038doi:https://doi.org/10.1115/GT2014-27339

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Topics: Compressors , Rotors , Design , Engineering prototypes , High pressure (Physics) , Wheels , American Petroleum Institute , Compression , Couplings , High temperature

Model Validation for Identification of Damage Dynamics

Ryan J. Madden, Jerzy T. Sawicki, Alexander H. Pesch

GT 2014; V07AT31A039doi:https://doi.org/10.1115/GT2014-27341

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Topics: Damage , Dynamics (Mechanics) , Model validation , Robust control , Uncertainty , Crack detection , Engineers , Magnetic bearings , Noise (Sound) , Rotors

Damping Technologies

Analysis and Verification Test of Damping Characteristics of Steam Turbine Hollow Vane With Friction Damper

Yasutomo Kaneko, Hiroyuki Yamashita, Hiroharu Ooyama

GT 2014; V07AT34A001doi:https://doi.org/10.1115/GT2014-25157

Abstract

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Topics: Dampers , Damping , Friction , Steam turbines , Excitation , Blades , Flat plates , Modal analysis , Pressure , Reliability

Understanding Complexities in Underplatform Damper Mechanics

Muzio M. Gola, Chiara Gastaldi

GT 2014; V07AT34A002doi:https://doi.org/10.1115/GT2014-25240

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Topics: Dampers , Friction , Computer simulation , Blades , Casting , Engineering simulation , Kinematics , Simulation

Investigation on the Effect of Dimension on the Compression Mechanics of Metal Rubber

Yanhong Ma, Di Gao, Jie Hong

GT 2014; V07AT34A003doi:https://doi.org/10.1115/GT2014-25373

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Topics: Compression , Dimensions , Metals , Rubber , Bearings , Molding , Mechanical properties , Wire , Damping , Manufacturing

Identification of Contact Area From Full Field Displacement Surface Measurements

Eric Chatelet, Thouraya Nouri Baranger, Georges Jacquet-Richardet, Aurélien Saulot

GT 2014; V07AT34A004doi:https://doi.org/10.1115/GT2014-25504

Abstract

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Topics: Accelerometers , Aeronautics , Blades , Computer simulation , Dampers , Displacement , Displacement measurement , Dry friction , Energy industry , Failure mechanisms

Influential Parameters on Structural Damping Values of Turbine Blades

Olaf P. Hentschel, L. Panning-von Scheidt, J. Wallaschek, M. Denk, P.-A. Masserey

GT 2014; V07AT34A005doi:https://doi.org/10.1115/GT2014-25656

Abstract

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Topics: Damping , Turbine blades , High cycle fatigue , Vibration , Excitation , Stress , Transfer functions , Actuators , Blades , Cantilever beams

Sensitivity Analysis of Multiharmonic Self-Excited Limit-Cycle Vibrations in Gas-Turbine Engine Structures With Nonlinear Contact Interfaces

E. P. Petrov

GT 2014; V07AT34A006doi:https://doi.org/10.1115/GT2014-26673

Abstract

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Topics: Engines , Gas turbines , Limit cycles , Sensitivity analysis , Vibration , Finite element model , Friction , Oscillations , Springs

Switch Triggers for Optimal Vibration Reduction via Resonance Frequency Detuning

Garrett K. Lopp, Jeffrey L. Kauffman

GT 2014; V07AT34A007doi:https://doi.org/10.1115/GT2014-27263

Abstract

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Topics: Resonance , Switches , Vibration , Stiffness , Damping , Degrees of freedom , Displacement , Dynamics (Mechanics) , Equations of motion , Excitation

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