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ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition

June 26–30, 2017

Charlotte, North Carolina, USA

Conference Sponsors:

ISBN:

978-0-7918-5092-3

In This Volume

Emerging Methods in Design and Engineering (9)
Fatigue, Fracture and Life Prediction (18)
Probabilistic Methods (5)
Bearing and Seal Dynamics (36)

Volume 7A: Structures and Dynamics

Emerging Methods in Design and Engineering

Geometric Model Update of Blisks and its Experimental Validation for a Wide Frequency Range

Thomas Maywald, Thomas Backhaus, Sven Schrape, Arnold Kühhorn

GT 2017; V07AT30A001doi:https://doi.org/10.1115/GT2017-63446

Abstract

View Articletitled, Geometric Model Update of Blisks and its Experimental Validation for a Wide Frequency Range

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Topics: Blades , Compressors , Engines , Excitation , Finite element analysis , Finite element model , Geometry , Hammers , Laser Doppler vibrometers , Lasers

Design of a Bimetallic Blisk Turbine for a Gas Turbine Engine and its Production Using Powder Metallurgy Methods

Liubov Magerramova, Boris Vasilyev, Ravil Nigmatullin, Vladimir Kinzburskiy

GT 2017; V07AT30A002doi:https://doi.org/10.1115/GT2017-63560

Abstract

View Articletitled, Design of a Bimetallic Blisk Turbine for a Gas Turbine Engine and its Production Using Powder Metallurgy Methods

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Topics: Design , Gas turbines , Powder metallurgy , Turbines , Blades , Disks , Locks (Waterways) , Wheels , Engines , Alloys

A Multi-Scale Data Fusion Method for Damage Detection of Rod Fastening Rotor in Modal Strain Energy

Tian Guo, Zili Xu

GT 2017; V07AT30A003doi:https://doi.org/10.1115/GT2017-64064

Abstract

View Articletitled, A Multi-Scale Data Fusion Method for Damage Detection of Rod Fastening Rotor in Modal Strain Energy

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Topics: Damage , Data fusion , Rotors , Vibration , Gas turbines , Noise (Sound) , Boundary-value problems , Materials properties , Power systems (Machinery) , Safety

Valve Body Thermal Stress Control While Warming Up

Jin He

GT 2017; V07AT30A004doi:https://doi.org/10.1115/GT2017-64126

Abstract

View Articletitled, Valve Body Thermal Stress Control While Warming Up

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Topics: Thermal stresses , Valves , Temperature , Dynamic analysis , Heat transfer coefficients , Metals , Safety , Stress , Thermal diffusion

A General Ply Design for Aero Engine Composite Fan Blade

Jiaguangyi Xiao, Yong Chen, Qichen Zhu, Jun Lee, Tingting Ma

GT 2017; V07AT30A005doi:https://doi.org/10.1115/GT2017-64377

Abstract

View Articletitled, A General Ply Design for Aero Engine Composite Fan Blade

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Topics: Aircraft engines , Blades , Composite materials , Design , Laminates , Computer software , Modal analysis , Numerical analysis , Reliability , Safety

Determining Stress in Turbocharger Impellers due to Component Machining Process

Simon M. Barrans, Md Shams E. Tabriz, Christian F. Ellis

GT 2017; V07AT30A006doi:https://doi.org/10.1115/GT2017-64412

Abstract

View Articletitled, Determining Stress in Turbocharger Impellers due to Component Machining Process

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Topics: Impellers , Machining , Stress , Turbochargers , Wheels , Design , Geometry , Computer-aided design , Casting , Computerized tomography

Innovative Design of Attachment for Turbine Blade Rotating at High Speed

D. Botto, F. Alinejad

GT 2017; V07AT30A007doi:https://doi.org/10.1115/GT2017-64959

Abstract

View Articletitled, Innovative Design of Attachment for Turbine Blade Rotating at High Speed

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Topics: Design , Turbine blades , Stress , Optimization , Blades , Computer software , Disks , Decision making , Engineers , Finite element analysis

Estimation of Forcing Functions on a Mistuned Bladed Rotor From Harmonic Response

Alok Sinha

GT 2017; V07AT30A008doi:https://doi.org/10.1115/GT2017-65045

Abstract

View Articletitled, Estimation of Forcing Functions on a Mistuned Bladed Rotor From Harmonic Response

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Topics: Rotors , Errors , Frequency response , Kalman filters , Noise (Sound) , Robustness

An Aeromechanical Screening Tool for Turbine Blades

Suryarghya Chakrabarti, Andrew Grafitti, Brian Potter

GT 2017; V07AT30A009doi:https://doi.org/10.1115/GT2017-65075

Abstract

View Articletitled, An Aeromechanical Screening Tool for Turbine Blades

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Topics: Airfoils , Blades , Design , Disks , Errors , Finite element analysis , Finite element model , Flow (Dynamics) , Gas turbines , Generators

Fatigue, Fracture and Life Prediction

A New Temperature Based Method for Determination of Lifetime Consumption of Turbo-Machinery Components During Operation

M. Sistaninia, D. Ugel, S. Olmes

GT 2017; V07AT31A001doi:https://doi.org/10.1115/GT2017-63229

Abstract

View Articletitled, A New Temperature Based Method for Determination of Lifetime Consumption of Turbo-Machinery Components During Operation

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Topics: Temperature , Turbomachinery , Cycles , Stress , Damage , Gas turbines , Fatigue life , Finite element analysis , Fracture (Materials) , Inertia (Mechanics)

Efficient Lifetime Prediction of High Pressure Turbine Blades in Real Life Conditions

Marinus Johannus van Enkhuizen, Christian Dresbach, Stefan Reh, Stefan Kuntzagk

GT 2017; V07AT31A002doi:https://doi.org/10.1115/GT2017-63341

Abstract

View Articletitled, Efficient Lifetime Prediction of High Pressure Turbine Blades in Real Life Conditions

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Topics: High pressure (Physics) , Turbine blades , Blades , Experimental design , Engines , Flight , Jet engines , Maintenance , Simulation , Aircraft

Life Extension of Power Turbine Disks Exposed to In-Service Corrosion Damage

Dipankar Dua, Mohammad Khajavi, Matthew Hill

GT 2017; V07AT31A003doi:https://doi.org/10.1115/GT2017-63366

Abstract

View Articletitled, Life Extension of Power Turbine Disks Exposed to In-Service Corrosion Damage

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Topics: Corrosion , Damage , Disks , Life extension , Turbines , Maintenance , Alloys , Blades , Coatings , Design

Innovative Material Testing Based on Small-Scale Specimens and Application for Turbomachinery Components

Mario Raddatz, Dirk Holländer, Uwe Gampe

GT 2017; V07AT31A004doi:https://doi.org/10.1115/GT2017-63422

Abstract

View Articletitled, Innovative Material Testing Based on Small-Scale Specimens and Application for Turbomachinery Components

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Topics: Materials testing , Turbomachinery , Testing , Temperature , Gas turbines , Alloys , Nickel , Fatigue life , Heating , High cycle fatigue

The Effect of Foreign Object Damage on Compressor Blade High Cycle Fatigue Strength

Benjamin Hanschke, Thomas Klauke, Arnold Kühhorn

GT 2017; V07AT31A005doi:https://doi.org/10.1115/GT2017-63599

Abstract

View Articletitled, The Effect of Foreign Object Damage on Compressor Blade High Cycle Fatigue Strength

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Topics: Blades , Compressors , Damage , High cycle fatigue , Fatigue strength , Aircraft engines , Design , Airfoils , Engines , Stress

Development of a Fatigue Damage and Lifing Assessment Method for Inconel 625 and Aluminum 6061-T6

Dino Celli, M.-H. Herman Shen, Tommy George, Onome Scott-Emuakpor, Casey Holycross

GT 2017; V07AT31A006doi:https://doi.org/10.1115/GT2017-63775

Abstract

View Articletitled, Development of a Fatigue Damage and Lifing Assessment Method for Inconel 625 and Aluminum 6061-T6

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Topics: Aluminum , Fatigue damage , Fatigue , Stress , Fracture toughness , High cycle fatigue , Cycles , Damage , Fatigue failure , Fatigue life

Effect of Laser Shock Peening on Fatigue Life of Full Scale Turbine Blades

Cao Chen, Xiaoyong Zhang, Lei Han, Xiaojun Yan

GT 2017; V07AT31A007doi:https://doi.org/10.1115/GT2017-63789

Abstract

View Articletitled, Effect of Laser Shock Peening on Fatigue Life of Full Scale Turbine Blades

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Topics: Fatigue life , Laser hardening , Turbine blades , Blades , Stress , Yield stress , Electromagnetic scattering , Fatigue properties , High cycle fatigue , High temperature

Plastic Effects on High Cycle Fatigue at the Edge of Contact of Turbine Blade Fixtures

C. H. Richter, U. Krupp, M. Zeißig, G. Telljohann

GT 2017; V07AT31A008doi:https://doi.org/10.1115/GT2017-63857

Abstract

View Articletitled, Plastic Effects on High Cycle Fatigue at the Edge of Contact of Turbine Blade Fixtures

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Topics: High cycle fatigue , Turbine blades , Fatigue , Plasticity , Rotors , Stators , Blades , Excitation , Fatigue limit , Fatigue testing

Study of Constraint Issues in Elasto-Plastic Fracture Analysis Using Experimental and Finite Element Simulation

Md Ibrahim Kittur, Krishnaraja G. Kodancha, C. R. Rajashekar

GT 2017; V07AT31A009doi:https://doi.org/10.1115/GT2017-63871

Abstract

View Articletitled, Study of Constraint Issues in Elasto-Plastic Fracture Analysis Using Experimental and Finite Element Simulation

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Topics: Finite element analysis , Fracture (Materials) , Simulation , Steel , Displacement , Error analysis , Fracture toughness , Geometry , Plane strain , Stress

Investigation of Advanced Lifetime Calculation Procedure for Steam Turbines in Flexible Operation

Dennis Jarmowski, Paolo Capozzi, Jan Vogt, Klaus Helbig

GT 2017; V07AT31A010doi:https://doi.org/10.1115/GT2017-64147

Abstract

View Articletitled, Investigation of Advanced Lifetime Calculation Procedure for Steam Turbines in Flexible Operation

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Topics: Steam turbines , Cycles , Transients (Dynamics) , Finite element methods , Finite element model , Boundary-value problems , Creep , Design , Energy generation , Fatigue damage

A Processing Method for Combined Fatigue Accelerated Test Data

Songwang Zheng, Cao Chen, Lei Han, Xiaoyong Zhang, Xiaojun Yan

GT 2017; V07AT31A011doi:https://doi.org/10.1115/GT2017-64414

Abstract

View Articletitled, A Processing Method for Combined Fatigue Accelerated Test Data

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Topics: Blades , Fatigue , High cycle fatigue , Stress , Turbine blades , Vibration

A New Modified Contrast Method for Life Prediction in Combined Cycle Fatigue Test

Lei Han, Cao Chen, Xiaoyong Zhang, Xiaojun Yan

GT 2017; V07AT31A012doi:https://doi.org/10.1115/GT2017-64435

Abstract

View Articletitled, A New Modified Contrast Method for Life Prediction in Combined Cycle Fatigue Test

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Topics: Aerodynamics , Blades , Centrifugal force , Combined cycles , Crack propagation , Cycles , Damage , Fatigue testing , Fittings , Fluid-dynamic forces

A Low Cycle Fatigue Life Prediction Model of Single Crystal Nickel-Based Superalloys Using Critical Plane Approach Combined With Crystallographic Slip Theory

Lijuan Mu, Xuezhi Dong, Qing Gao, Yongsheng Tian, Chunqing Tan

GT 2017; V07AT31A013doi:https://doi.org/10.1115/GT2017-64598

Abstract

View Articletitled, A Low Cycle Fatigue Life Prediction Model of Single Crystal Nickel-Based Superalloys Using Critical Plane Approach Combined With Crystallographic Slip Theory

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Topics: Crystals , Low cycle fatigue , Nickel , Superalloys , Stress , Anisotropy , Fatigue , Fatigue life , Fittings , Shear stress

Distinguishing Primary and Secondary Loads to Support Gas Turbine Blades and Vanes Design

Andrea Riva, Stefano Elli, Julien Nussbaum

GT 2017; V07AT31A014doi:https://doi.org/10.1115/GT2017-64634

Abstract

View Articletitled, Distinguishing Primary and Secondary Loads to Support Gas Turbine Blades and Vanes Design

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Topics: Blades , Design , Gas turbines , Stress , Creep , Damage , Turbine blades , Centrifugal force , Cycles , Diffusion (Physics)

Multiscale Investigation of Strain Energy Density for Fatigue Life Prediction

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

GT 2017; V07AT31A015doi:https://doi.org/10.1115/GT2017-64791

Abstract

View Articletitled, Multiscale Investigation of Strain Energy Density for Fatigue Life Prediction

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Topics: Density , Fatigue life , Stress , Damage , Fatigue , Cycles , Dynamic testing (Materials) , Elasticity , Feedback , Low cycle fatigue

Application of 3D Fracture Mechanics for Improved Crack Growth Predictions of Gas Turbine Components

Kanwardeep S. Bhachu, Santosh B. Narasimhachary, Sachin R. Shinde, Phillip W. Gravett

GT 2017; V07AT31A016doi:https://doi.org/10.1115/GT2017-64890

Abstract

View Articletitled, Application of 3D Fracture Mechanics for Improved Crack Growth Predictions of Gas Turbine Components

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Topics: Fracture (Materials) , Fracture mechanics , Gas turbines , Stress , Approximation , Blades , Design , Engines , Geometry , Life cycle costing

Connecting Computed-Tomography-Assisted Discontinuity Detection in Ni-Base Superalloys to Engineering Simulation

Adrian Loghin, Al Cerrone, Anjali Singhal, Ying Zhou

GT 2017; V07AT31A017doi:https://doi.org/10.1115/GT2017-65087

Abstract

View Articletitled, Connecting Computed-Tomography-Assisted Discontinuity Detection in Ni-Base Superalloys to Engineering Simulation

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Topics: Engineering simulation , Superalloys , Fatigue , Failure , Fatigue life , Fractography , Fracture (Materials) , Alloy steel , Alloys , Ceramics

A Probabilistic Simulation of Grain Size Effect on Small Crack Growth in a Nickel Based Superalloy

Dianyin Hu, Jianxing Mao, Rongqiao Wang, Jun Song, Xiyuan Wang

GT 2017; V07AT31A018doi:https://doi.org/10.1115/GT2017-65189

Abstract

View Articletitled, A Probabilistic Simulation of Grain Size Effect on Small Crack Growth in a Nickel Based Superalloy

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Topics: Fracture (Materials) , Grain size , Nickel , Simulation , Superalloys , Dislocations , Fatigue cracks , Fatigue life , Grain boundaries , Model validation

Probabilistic Methods

Robust Design Optimization of a Low Pressure Turbine Rotor Discs Secondary Air System

Giulia Antinori, Ilya Arsenyev, Andreas Fischersworring-Bunk

GT 2017; V07AT32A001doi:https://doi.org/10.1115/GT2017-63289

Abstract

View Articletitled, Robust Design Optimization of a Low Pressure Turbine Rotor Discs Secondary Air System

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Topics: Design , Disks , Optimization , Pressure , Rotors , Turbines , Temperature , Stress , Aircraft , Boundary-value problems

Investigation of Fan Blade off Events Using a Bayesian Framework

B. Profir, M. H. Eres, J. P. Scanlan, R. Bates

GT 2017; V07AT32A002doi:https://doi.org/10.1115/GT2017-63431

Abstract

View Articletitled, Investigation of Fan Blade off Events Using a Bayesian Framework

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Topics: Blades , Damage , Engines , Teams , Dynamic modeling , Dynamics (Mechanics) , Mechanical engineering , Modeling , Oscillations , Statistical distributions

A Parametrization Describing Blisk Airfoil Variations Referring to Modal Analysis

Thomas Backhaus, Thomas Maywald, Sven Schrape, Matthias Voigt, Ronald Mailach

GT 2017; V07AT32A003doi:https://doi.org/10.1115/GT2017-64243

Abstract

View Articletitled, A Parametrization Describing Blisk Airfoil Variations Referring to Modal Analysis

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Topics: Airfoils , Modal analysis , Blades , Design , Electromagnetic scattering , Geometry , Manufacturing , Mode shapes , NACA airfoils

Probabilistic LCF Risk Evaluation of a Turbine Vane by Combined Size Effect and Notch Support Modeling

Lucas Mäde, Hanno Gottschalk, Sebastian Schmitz, Tilmann Beck, Georg Rollmann

GT 2017; V07AT32A004doi:https://doi.org/10.1115/GT2017-64408

Abstract

View Articletitled, Probabilistic LCF Risk Evaluation of a Turbine Vane by Combined Size Effect and Notch Support Modeling

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Topics: Modeling , Risk assessment , Size effect , Turbines , Stress , Design , Fracture (Materials) , Gas turbines , Low cycle fatigue , Probabilistic risk assessment

Probabilistic Fracture Mechanics for Heavy Duty Gas Turbine Rotor Forgings

Kai Kadau, Phillip W. Gravett, Christian Amann

GT 2017; V07AT32A005doi:https://doi.org/10.1115/GT2017-64811

Abstract

View Articletitled, Probabilistic Fracture Mechanics for Heavy Duty Gas Turbine Rotor Forgings

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Topics: Forgings (Products) , Fracture mechanics , Gas turbines , Rotors , Risk , Failure , Simulation , Cycles , Design , Finite element analysis

Bearing and Seal Dynamics

On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

Filippo Cangioli, Paolo Pennacchi, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton, Phuoc Vinh Dang

GT 2017; V07AT34A001doi:https://doi.org/10.1115/GT2017-63012

Abstract

View Articletitled, On the Thermodynamic Process in the Bulk-Flow Model for the Estimation of the Dynamic Coefficients of Labyrinth Seals

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Topics: Flow (Dynamics) , Thermodynamic processes , Enthalpy , Computational fluid dynamics , Leakage , Cavities , Clearances (Engineering) , Fluids , Rotors , Shear stress

Sensitivity Analysis of the One-Control Volume Bulk-Flow Model for a 14 Teeth-on-Stator Straight-Through Labyrinth Seal

Filippo Cangioli, Paolo Pennacchi, Giacomo Riboni, Giuseppe Vannini, Lorenzo Ciuchicchi, Andrea Vania, Steven Chatterton

GT 2017; V07AT34A002doi:https://doi.org/10.1115/GT2017-63014

Abstract

View Articletitled, Sensitivity Analysis of the One-Control Volume Bulk-Flow Model for a 14 Teeth-on-Stator Straight-Through Labyrinth Seal

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Topics: Flow (Dynamics) , Sensitivity analysis , Stators , Leakage , Fluid dynamics , Friction , Cavities , Discharge coefficient , Dynamics (Mechanics) , Fluids

On the Force Coefficients of a Flooded, Open Ends Short Length Squeeze Film Damper: From Theory to Practice (and Back)

Luis San Andrés, Sean Den, Sung-Hwa Jeung

GT 2017; V07AT34A003doi:https://doi.org/10.1115/GT2017-63152

Abstract

View Articletitled, On the Force Coefficients of a Flooded, Open Ends Short Length Squeeze Film Damper: From Theory to Practice (and Back)

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Topics: Dampers , Damping , Lubricants , Pressure , Inertia (Mechanics) , Aircraft engines , Bridges (Structures) , Clearances (Engineering) , Design , Excitation

Leakage, Drag Power and Rotordynamic Force Coefficients of an Air in Oil (Wet) Annular Seal

Luis San Andrés, Xueliang Lu

GT 2017; V07AT34A004doi:https://doi.org/10.1115/GT2017-63254

Abstract

View Articletitled, Leakage, Drag Power and Rotordynamic Force Coefficients of an Air in Oil (Wet) Annular Seal

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Topics: Drag (Fluid dynamics) , Leakage , Damping , Flow (Dynamics) , Compression , Pressure , Pumps , Stiffness , Clearances (Engineering) , Design

The Dynamic Characteristic Analysis of Elastic Ring Squeeze Film Damper by Fluid-Structure Interaction Approach

ZhenLin Wang, Ning Xu, XiangYu Yu, ZhanSheng Liu, GuangHui Zhang

GT 2017; V07AT34A005doi:https://doi.org/10.1115/GT2017-63276

Abstract

View Articletitled, The Dynamic Characteristic Analysis of Elastic Ring Squeeze Film Damper by Fluid-Structure Interaction Approach

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Topics: Dampers , Fluid structure interaction , Deformation , Film thickness , Aircraft engines , Cavitation , Computational fluid dynamics , Computer simulation , Damping , Finite element methods

Numerical and Experimental Investigations on Preload Effects in Air Foil Journal Bearings

Marcel Mahner, Pu Li, Andreas Lehn, Bernhard Schweizer

GT 2017; V07AT34A006doi:https://doi.org/10.1115/GT2017-63284

Abstract

View Articletitled, Numerical and Experimental Investigations on Preload Effects in Air Foil Journal Bearings

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Topics: Journal bearings , Bearings , Manufacturing , Damping , Deflection , Fluids , Model validation , Pressure , Stiffness

CFD-Based Prediction of Rotordynamic Performance of Smooth Stator-Grooved Rotor (SS-GR) Liquid Annular Seals

Farzam Mortazavi, Alan Palazzolo

GT 2017; V07AT34A007doi:https://doi.org/10.1115/GT2017-63380

Abstract

View Articletitled, CFD-Based Prediction of Rotordynamic Performance of Smooth Stator-Grooved Rotor (SS-GR) Liquid Annular Seals

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Topics: Computational fluid dynamics , Rotors , Stators , Leakage , Stiffness , Whirls , Damping , Pressure , Surface roughness , Dimensions

Effect of Vortex Shedding on the Performance of Scoop Based Lubrication Devices

Arun Prabhakar, Yousif Abdalla Abakr, Kathy Simmons

GT 2017; V07AT34A008doi:https://doi.org/10.1115/GT2017-63444

Abstract

View Articletitled, Effect of Vortex Shedding on the Performance of Scoop Based Lubrication Devices

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Topics: Lubrication , Vortex shedding , Computational fluid dynamics , Bearings , Vortices , Aircraft , Flat plates , Fluids , Imaging , Multiphase flow

Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical CO₂ Expander

Bugra Ertas, Adolfo Delgado, Jeffrey Moore

GT 2017; V07AT34A009doi:https://doi.org/10.1115/GT2017-63448

Abstract

View Articletitled, Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical CO<sub>2</sub> Expander

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Topics: Bearings , Dampers , Supercritical carbon dioxide , Damping , Inertia (Mechanics) , Stiffness , Cavitation , Testing , Accounting , Carbon dioxide

Towards Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox

Martin Berthold, Hervé Morvan, Colin Young, Richard Jefferson-Loveday

GT 2017; V07AT34A010doi:https://doi.org/10.1115/GT2017-63451

Abstract

View Articletitled, Towards Investigation of External Oil Flow From a Journal Bearing in an Epicyclic Gearbox

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Topics: Flow (Dynamics) , Journal bearings , Mechanical drives , Computational fluid dynamics , Bearings , Approximation , Boundary-value problems , Centrifugal force , Computer simulation , Design

A Computational Fluid Dynamics Modified Bulk Flow Analysis for Circumferentially Shallow Grooved Liquid Seals

Luis San Andrés, Tingcheng Wu, Hideaki Maeda, Ono Tomoki

GT 2017; V07AT34A011doi:https://doi.org/10.1115/GT2017-63492

Abstract

View Articletitled, A Computational Fluid Dynamics Modified Bulk Flow Analysis for Circumferentially Shallow Grooved Liquid Seals

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Topics: Computational fluid dynamics , Flow (Dynamics) , Friction , Rotors , Cavities , Clearances (Engineering) , Damping , Pressure , Stiffness , Centrifugal pumps

Rotordynamic Performance of Hybrid Air Foil Bearings With Regulated Hydrostatic Injection

Behzad Zamanian Yazdi, Daejong Kim

GT 2017; V07AT34A012doi:https://doi.org/10.1115/GT2017-63495

Abstract

View Articletitled, Rotordynamic Performance of Hybrid Air Foil Bearings With Regulated Hydrostatic Injection

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Topics: Foil bearings , Hydrostatics , Engineering simulation , Simulation , Bearings , Friction , Rotors , Vibration , Clearances (Engineering) , Drag (Fluid dynamics)

Experimental Analysis of Angled Injection Aerostatic Hybrid Bearings

Julian Le Rouzic, Mihai Arghir

GT 2017; V07AT34A013doi:https://doi.org/10.1115/GT2017-63558

Abstract

View Articletitled, Experimental Analysis of Angled Injection Aerostatic Hybrid Bearings

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Topics: Bearings , Experimental analysis , Rotation , Rotors , Stiffness , Water , Damping , Equations of motion , Excitation , Impulse (Physics)

Comparative Evaluation of Foil Bearings With Different Compliant Structures for Improved Manufacturability

K. Shalash, J. Schiffmann

GT 2017; V07AT34A014doi:https://doi.org/10.1115/GT2017-63615

Abstract

View Articletitled, Comparative Evaluation of Foil Bearings With Different Compliant Structures for Improved Manufacturability

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Topics: Foil bearings , Manufacturing , Bearings , Cantilever beams , Clearances (Engineering) , Robustness , Stiffness , Uncertainty , Cantilevers , Displacement

Dynamic and Thermal Analysis of Rotor Drop on Sleeve Type Catcher Bearings in Magnetic Bearing Systems

Xiao Kang, Alan Palazzolo

GT 2017; V07AT34A015doi:https://doi.org/10.1115/GT2017-63662

Abstract

View Articletitled, Dynamic and Thermal Analysis of Rotor Drop on Sleeve Type Catcher Bearings in Magnetic Bearing Systems

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Topics: Bearings , Magnetic bearings , Rotors , Thermal analysis , Plain bearings , Finite element methods , Finite element model , Friction , Aluminum , Bearing design

Dynamic Properties of Multi-Lobe Water Lubricated Bearings With Temporal and Convective Inertia Considerations

Saeid Dousti, Paul Allaire, Bradley Nichols, Jianming Cao, Timothy Dimond

GT 2017; V07AT34A016doi:https://doi.org/10.1115/GT2017-63687

Abstract

View Articletitled, Dynamic Properties of Multi-Lobe Water Lubricated Bearings With Temporal and Convective Inertia Considerations

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Topics: Bearings , Inertia (Mechanics) , Water , Geometry , Damping , Lubricants , Pumps , Stability , Stiffness

Oil Film Thickness Measurements on Surfaces Close to an Aero-Engine Ball Bearing Using Optical Techniques

Jee Loong Hee, R. Santhosh, Kathy Simmons, Graham Johnson, David Hann, Michael Walsh

GT 2017; V07AT34A017doi:https://doi.org/10.1115/GT2017-63813

Abstract

View Articletitled, Oil Film Thickness Measurements on Surfaces Close to an Aero-Engine Ball Bearing Using Optical Techniques

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Topics: Aircraft engines , Ball bearings , Film thickness , Bearings , Stress , Flow (Dynamics) , Engines , Knudsen number , Imaging , Gas turbines

Experimental Investigation of Oil Shedding From an Aero-Engine Ball Bearing at Moderate Speeds

R. Santhosh, Jee Loong Hee, Kathy Simmons, Graham Johnson, David Hann, Michael Walsh

GT 2017; V07AT34A018doi:https://doi.org/10.1115/GT2017-63815

Abstract

View Articletitled, Experimental Investigation of Oil Shedding From an Aero-Engine Ball Bearing at Moderate Speeds

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Topics: Aircraft engines , Ball bearings , Bearings , Stress , Engines , Flow (Dynamics) , Knudsen number , Rotating disks , Design , Gas turbines

Numerical Analysis of the Impact of Manufacturing Errors on the Structural Stiffness of Foil Bearings

Aurelian Fatu, Mihai Arghir

GT 2017; V07AT34A019doi:https://doi.org/10.1115/GT2017-63822

Abstract

View Articletitled, Numerical Analysis of the Impact of Manufacturing Errors on the Structural Stiffness of Foil Bearings

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Topics: Errors , Foil bearings , Manufacturing , Numerical analysis , Stiffness , Mechanical properties , Bearings , Clearances (Engineering) , Damping , Elasticity

Investigation of Air-Oil-Thermal Distribution in Floating Bush Bearing

Yan Wang, Xiaodong Ren

GT 2017; V07AT34A020doi:https://doi.org/10.1115/GT2017-63847

Abstract

View Articletitled, Investigation of Air-Oil-Thermal Distribution in Floating Bush Bearing

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Topics: Bearings , Computational fluid dynamics , Temperature effects , Rotation , Temperature , Engineering simulation , Flow (Dynamics) , Modeling , Rotors , Simulation

Investigations on Rotordynamic Characteristics of a Floating Ring Seal Considering Structural Elasticity

Peng Xia, Guanghui Zhang, Jingming Zhao, Zhansheng Liu

GT 2017; V07AT34A021doi:https://doi.org/10.1115/GT2017-63891

Abstract

View Articletitled, Investigations on Rotordynamic Characteristics of a Floating Ring Seal Considering Structural Elasticity

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Topics: Clearances (Engineering) , Damping , Deformation , Elasticity , Finite element methods , Flow (Dynamics) , High pressure (Physics) , Inertia (Mechanics) , Leakage , Stiffness

Validation of Turbulence Models for the Superlaminar Flows in Journal Bearings

Aoshuang Ding, Xiaodong Ren

GT 2017; V07AT34A022doi:https://doi.org/10.1115/GT2017-63909

Abstract

View Articletitled, Validation of Turbulence Models for the Superlaminar Flows in Journal Bearings

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Topics: Flow (Dynamics) , Journal bearings , Turbulence , Fully developed turbulent flow , Polishing equipment , Bearings , Computational fluid dynamics , Machinery , Three-dimensional models , Viscosity

Experimental Study of the Static and Dynamic Characteristics of a Long Smooth Seal With Two-Phase, Mainly-Air Mixtures

Min Zhang, James E. Mclean, Jr., Dara W. Childs

GT 2017; V07AT34A023doi:https://doi.org/10.1115/GT2017-63988

Abstract

View Articletitled, Experimental Study of the Static and Dynamic Characteristics of a Long Smooth Seal With Two-Phase, Mainly-Air Mixtures

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Topics: Clearances (Engineering) , Compressed air , Compressors , Damping , Excitation , Flow (Dynamics) , Fluids , Friction , Leakage , Pistons

Performance and Cost Reduction of Permanent Magnet Biased Magnetic Bearings

B. R. Nichols, P. E. Allaire, T. Dimond, J. Cao, S. Dousti

GT 2017; V07AT34A024doi:https://doi.org/10.1115/GT2017-64050

Abstract

View Articletitled, Performance and Cost Reduction of Permanent Magnet Biased Magnetic Bearings

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Topics: Magnetic bearings , Permanent magnets , Bearings , Electricity (Physics) , Stress , Wire , Currents , Electromagnetic induction , Magnetic flux , Manufacturing

Numerical Study of Cage Dynamics Focused on Hydrodynamic Effects of Guidance Land Clearances for Different Ball-Pocket Clearances in Cryogenic Environments

Bok Seong Choe, Jeon Kook Lee, Doyoung Jeon, Yongbok Lee

GT 2017; V07AT34A025doi:https://doi.org/10.1115/GT2017-64151

Abstract

View Articletitled, Numerical Study of Cage Dynamics Focused on Hydrodynamic Effects of Guidance Land Clearances for Different Ball-Pocket Clearances in Cryogenic Environments

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Topics: Ball bearings , Clearances (Engineering) , Collisions (Physics) , Computational fluid dynamics , Computer software , Density , Dynamics (Mechanics) , Fluid-dynamic forces , Fluids , Nitrogen

Comparison of Experimentally and Numerically Determined Dynamic Coefficients of the Hydrodynamic Slide Bearings Operating in the Nonlinear Rotating System

Łukasz Breńkacz, Grzegorz Żywica

GT 2017; V07AT34A026doi:https://doi.org/10.1115/GT2017-64251

Abstract

View Articletitled, Comparison of Experimentally and Numerically Determined Dynamic Coefficients of the Hydrodynamic Slide Bearings Operating in the Nonlinear Rotating System

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Topics: Bearings , Algorithms , Damping , Stiffness , Rotors , Vibration , Machinery , Computational methods , Computer software , Couplings

Influence of Bearing Load on the Performance of Tilting-Pad Journal Bearing Under High Surface Velocity

Binbin Liu, Weimin Wang, Jinji Gao, Jian Zhang

GT 2017; V07AT34A027doi:https://doi.org/10.1115/GT2017-64263

Abstract

View Articletitled, Influence of Bearing Load on the Performance of Tilting-Pad Journal Bearing Under High Surface Velocity

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Topics: Bearings , Journal bearings , Stress , Rotor vibration , Temperature , Compressors , Computer simulation , Design , Excitation , Excitation systems

Understanding the Effect of Systematic Errors on the Accuracy of Experimental Measurements of Fluid-Film Bearing Dynamic Coefficients

Benstone Schwartz, Roger Fittro, Carl Knospe

GT 2017; V07AT34A028doi:https://doi.org/10.1115/GT2017-64665

Abstract

View Articletitled, Understanding the Effect of Systematic Errors on the Accuracy of Experimental Measurements of Fluid-Film Bearing Dynamic Coefficients

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Topics: Bearings , Errors , Fluid films , Uncertainty , Stability , Computer simulation , Computer software , Design , Displacement measurement , Excitation

A Numerical Investigation of the Effect of Inlet Preswirl Ratio on Rotordynamic Characteristics of Labyrinth Seal

Tomohiko Tsukuda, Toshio Hirano, Cori Watson, Neal R. Morgan, Brian K. Weaver, Houston G. Wood

GT 2017; V07AT34A029doi:https://doi.org/10.1115/GT2017-64745

Abstract

View Articletitled, A Numerical Investigation of the Effect of Inlet Preswirl Ratio on Rotordynamic Characteristics of Labyrinth Seal

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Topics: Computational fluid dynamics , Damping , Engineering simulation , Flow (Dynamics) , Fluids , Rotors , Simulation , Stiffness

A Flow Starvation Model for Tilting Pad Journal Bearings and Evaluation of Frequency Response Functions: A Contribution Towards Understanding the Onset of Low Frequency Shaft Motions

Luis San Andrés, Bonjin Koo, Makoto Hemmi

GT 2017; V07AT34A030doi:https://doi.org/10.1115/GT2017-64822

Abstract

View Articletitled, A Flow Starvation Model for Tilting Pad Journal Bearings and Evaluation of Frequency Response Functions: A Contribution Towards Understanding the Onset of Low Frequency Shaft Motions

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Topics: Flow (Dynamics) , Frequency response , Journal bearings , Bearings , Lubricants , Rotors , Stress , Damping , Lubrication , Fluids

Effect of Surface Patterning on the Dynamic Response of Annular Hole-Pattern Seals

Hanxiang Jin, Alexandrina Untaroiu, Gen Fu

GT 2017; V07AT34A031doi:https://doi.org/10.1115/GT2017-64875

Abstract

View Articletitled, Effect of Surface Patterning on the Dynamic Response of Annular Hole-Pattern Seals

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Topics: Dynamic response , Design , Leakage , Rotors , Regression models , Energy dissipation , Fluids , Geometry , Kinetic energy , Linings (Textiles)

Response Surface Mapping and Multi-Objective Optimization of Tilting Pad Bearing Designs

Michael Branagan, Neal Morgan, Brian Weaver, Houston Wood

GT 2017; V07AT34A032doi:https://doi.org/10.1115/GT2017-64949

Abstract

View Articletitled, Response Surface Mapping and Multi-Objective Optimization of Tilting Pad Bearing Designs

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Topics: Bearings , Pareto optimization , Response surface methodology , Design , Bearing design , Composite materials , Film thickness , Fluid films , Optimization , Temperature

Investigation on Intelligent Rotor Vibration Control Based on Electromagnetic Damping Seal

Xing Shao, Weimin Wang, Fengli Jie, Xingan Jiang

GT 2017; V07AT34A033doi:https://doi.org/10.1115/GT2017-65055

Abstract

View Articletitled, Investigation on Intelligent Rotor Vibration Control Based on Electromagnetic Damping Seal

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Topics: Damping , Rotor vibration , Vibration , Compressors , Rotors , Actuators , Control algorithms , Vibration control , Bearings , Design

Design Approach for Large Foil Bearings Considering Rotordynamics

Srikanth Honavara Prasad, Daejong Kim

GT 2017; V07AT34A034doi:https://doi.org/10.1115/GT2017-65105

Abstract

View Articletitled, Design Approach for Large Foil Bearings Considering Rotordynamics

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Topics: Design , Foil bearings , Rotordynamics , Bearings , Stiffness , Clearances (Engineering) , Scaling laws (Mathematical physics) , Stress , Turbochargers , Aerospace systems

Rotordynamics Performance of Hybrid Foil Bearing Under Forced Vibration Input

Daejong Kim, Brian Nicholson, Lewis Rosado, Garry Givan

GT 2017; V07AT34A035doi:https://doi.org/10.1115/GT2017-65233

Abstract

View Articletitled, Rotordynamics Performance of Hybrid Foil Bearing Under Forced Vibration Input

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Topics: Foil bearings , Rotordynamics , Vibration , Bearings , Stress , Impulse (Physics) , Rotors , Excitation , Air Force , Aircraft engines

Including Pivot Friction in Pad Motion for a Tilting Pad Journal Bearing With Ball-Socket Pivots

Feng He

GT 2017; V07AT34A036doi:https://doi.org/10.1115/GT2017-65240

Abstract

View Articletitled, Including Pivot Friction in Pad Motion for a Tilting Pad Journal Bearing With Ball-Socket Pivots

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Topics: Friction , Journal bearings , Bearings , Stress , Pressure , Vibration , Deformation , Dynamics (Mechanics) , Transient analysis , Turbomachinery

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