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

Topics: Creep , Design , Turbine blades , Blades , Stress , Failure , Finite element analysis , Fracture (Materials) , Gas turbines , Response surface methodology

Comparison of Two Methods for Sensitivity Analysis of Compressor Blades

Robin Schmidt, Matthias Voigt, Konrad Vogeler, Marcus Meyer

GT 2016; V07BT29A003doi:https://doi.org/10.1115/GT2016-57378

Abstract

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Topics: Blades , Compressors , Sensitivity analysis , Computational fluid dynamics , Simulation , Geometry , Rotors , Shapes , Flow (Dynamics) , High pressure (Physics)

Micromechanics-Based Fracture Risk Assessment Using Integrated Probabilistic Damage Tolerance Analysis and Manufacturing Process Models

Michael P. Enright, R. Craig McClung, Kwai S. Chan, John McFarland, Jonathan P. Moody, James C. Sobotka

GT 2016; V07BT29A004doi:https://doi.org/10.1115/GT2016-58089

Abstract

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Topics: Damage , Fracture (Materials) , Fracture (Process) , Manufacturing , Micromechanics (Engineering) , Risk assessment , Tolerance analysis , Gas turbines , Grain size , Modeling

Optimal Automated Fracture Risk Assessment of 3D Gas Turbine Engine Components

Michael P. Enright, Jonathan P. Moody, James C. Sobotka

GT 2016; V07BT29A005doi:https://doi.org/10.1115/GT2016-58091

Abstract

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Topics: Fracture (Materials) , Fracture (Process) , Gas turbines , Risk assessment , Algorithms , Computation , Finite element analysis , Finite element model , Risk , Engines

Bearing and Seal Dynamics

Gas Dynamic Face Seal Tightness Under Non-Stationary Loading

Renat R. Badykov, Aleksandr S. Vinogradov

GT 2016; V07BT31A001doi:https://doi.org/10.1115/GT2016-56011

Abstract

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Topics: Aircraft engines , Cavities , Deformation , Design , Engines , Flight , Flow (Dynamics) , Heat transfer coefficients , Leakage , Pressure

Comparative Lift-Off Performance in Flexure Pivot Pad and Hybrid (Hydrostatic and Hydrodynamic) Bearings With Water as the Test Fluid

Dara W. Childs, David Mertz

GT 2016; V07BT31A002doi:https://doi.org/10.1115/GT2016-56212

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Topics: Bearings , Bending (Stress) , Fluids , Hydrostatics , Water , Stress , Pressure , Peak load , Centrifugal pumps , Design

Measurements Versus Predictions for a Hybrid (Hydrostatic Plus Hydrodynamic) Thrust Bearing for a Range of Orifice Diameters

Dara W. Childs, Paul Esser

GT 2016; V07BT31A003doi:https://doi.org/10.1115/GT2016-56213

Abstract

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Topics: Hydrostatics , Thrust bearings , Bearings , Flow (Dynamics) , Fluid films , Orifices , Pressure , Rotors , Stiffness , Water

Theoretical Analysis and Numerical Simulation of Oil Lubricated Foil Bearing With Elastic Supported Bump Foil Structure

Guanghui Zhang, Qiang Chen, Jiajia Yan, Xianghe Wang, Zhansheng Liu, Fangcheng Xu

GT 2016; V07BT31A004doi:https://doi.org/10.1115/GT2016-56267

Abstract

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Topics: Computer simulation , Foil bearings , Theoretical analysis , Bearings , Deformation , Stability , Stress , Boundary-value problems , Cavitation , Damping

Duffing’s Vibration of a Rotor Supported on Gas Foil Bearings With Base Excitation: Measurements and Model Predictions

Tae Ho Kim, Young Min Kim, Jongsung Lee, Moon Sung Park, Kyoung-Ku Ha, Changha Lee, Chimyung Kim

GT 2016; V07BT31A005doi:https://doi.org/10.1115/GT2016-56281

Abstract

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Topics: Excitation , Foil bearings , Rotors , Vibration , Stress , Thrust , Eddies (Fluid dynamics) , Eddy currents (Electricity) , Impellers , Nonlinear equations

Identification of Dynamic Characteristics of Gas Foil Thrust Bearings Using Base Excitation

Tae Ho Kim, Moon Sung Park, Jongsung Lee, Young Min Kim, Kyoung-Ku Ha, Jeonghee Park, Changha Lee, Chimyung Kim

GT 2016; V07BT31A006doi:https://doi.org/10.1115/GT2016-56282

Abstract

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Topics: Excitation , Thrust bearings , Stress , Bearings , Damping , Displacement , Rotors , Stiffness , Thrust , Turbomachinery

Rotordynamic Performance Measurements and Predictions of a Rotor Supported on Multilayer Gas Foil Journal Bearings for Microturbomachinery

Jongsung Lee, Young Min Kim, Moon Sung Park, Tae Ho Kim, Kyoung Ku Ha, Changha Lee, Sae Hoon Kim

GT 2016; V07BT31A007doi:https://doi.org/10.1115/GT2016-56283

Abstract

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Topics: Journal bearings , Rotors , Temperature , Impellers , Clearances (Engineering) , Displacement , Damping , Engines , Motors , Sensors

Rotordynamic Performance Predictions of Flexure Pivot Tilting Pad Bearings and Comparison to Published Test Data

Tae Ho Kim, Kyung Eun Jang, Tae Gyu Choi

GT 2016; V07BT31A008doi:https://doi.org/10.1115/GT2016-56284

Abstract

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Topics: Bearings , Bending (Stress) , Stiffness , Damping , Rotors , Stress , Whirls , Pressure , Stability , Deflection

Transient Lift-Off Test Results for an Experimental Hybrid Bearing in Air, Simulating a Liquid Hydrogen Turbopump Start Transient

Dara W. Childs, David Klooster, Henry Borchard, Dustin Pavelek, Stephen Phillips

GT 2016; V07BT31A009doi:https://doi.org/10.1115/GT2016-56310

Abstract

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Topics: Bearings , Hydrogen , Transients (Dynamics) , Stress , Pressure , Clearances (Engineering) , Computer software , Dimensions , Fluids , Hydrostatics

A Water Lubricated Hybrid Thrust Bearing: Measurements and Predictions of Static Load Performance

Luis San Andrés, Stephen Phillips, Dara Childs

GT 2016; V07BT31A010doi:https://doi.org/10.1115/GT2016-56349

Abstract

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Topics: Stress , Thrust bearings , Water , Bearings , Flow (Dynamics) , Pressure , Rotors , Clearances (Engineering) , Thrust , Engines

Impact of Bearing Clearance on Measured Stiffness and Damping Coefficients and Thermal Performance of a High-Stiffness Generation 3 Foil Journal Bearing

Jason C. Wilkes, Jonathan Wade, Aaron Rimpel, Jeff Moore, Erik Swanson, Joseph Grieco, Jerry Brady

GT 2016; V07BT31A011doi:https://doi.org/10.1115/GT2016-56478

Abstract

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Topics: Bearings , Clearances (Engineering) , Damping , Journal bearings , Stiffness , Foil bearings , Springs , Compressors , Natural gas , Stability

Transient Response of a Short-Length (L/D=0.2) Open-Ends Elastically Supported Squeeze Film Damper: Centered and Largely Off-Centered Whirl Motions

Luis San Andrés, Sean Den, Sung-Hwa Jeung

GT 2016; V07BT31A012doi:https://doi.org/10.1115/GT2016-56492

Abstract

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Topics: Dampers , Transients (Dynamics) , Whirls , Stress , Damping , Excitation , Clearances (Engineering) , Blades , Engine start-up , Engines

Theoretical Study of Top Foil Sagging Effect on the Performance of Air Thrust Foil Bearing

Fangcheng Xu, Daejong Kim, Behzad Zamanian Yazdi

GT 2016; V07BT31A013doi:https://doi.org/10.1115/GT2016-56493

Abstract

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Topics: Foil bearings , Thrust , Film thickness , Pressure , Stress , Bearings , Clearances (Engineering) , Deflection , Design , Engineering simulation

Effect of Operating Conditions on the Elasto-Hydrodynamic Performance of Foil Thrust Bearings for Supercritical CO₂ Cycles

Kan Qin, Ingo H. Jahn, Peter A. Jacobs

GT 2016; V07BT31A014doi:https://doi.org/10.1115/GT2016-56524

Abstract

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Topics: Cycles , Supercritical carbon dioxide , Thrust bearings , Bearings , Fluids , Inertia (Mechanics) , Pressure , Carbon dioxide , Computational fluid dynamics , Flow (Dynamics)

Rotordynamic Computational and Experimental Characterization of a Convergent Honeycomb Seal Tested With Negative Pre-Swirl, High Pressure With Static Eccentricity and Angular Misalignment

Giuseppe Vannini, Carlo Mazzali, Harald Underbakke

GT 2016; V07BT31A015doi:https://doi.org/10.1115/GT2016-56615

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Topics: Experimental characterization , High pressure (Physics) , Honeycomb structures , Rotors , Pressure , Stiffness , Damping , Stability , Clearances (Engineering) , Brakes

Development of an Active Control System for Rotating Machinery by Means of Tilting Pad Journal Bearings

Steven Chatterton, Filippo Cangioli, Paolo Pennacchi, Andrea Vania, Phuoc Vinh Dang

GT 2016; V07BT31A016doi:https://doi.org/10.1115/GT2016-56632

Abstract

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Topics: Control systems , Journal bearings , Machinery , Vibration , Bearings , Compressors , Control equipment , Design , Engineering simulation , Numerical analysis

The Influence of Hydrodynamic Bearing Configuration on Morton Effect

Xiaomeng Tong, Alan Palazzolo

GT 2016; V07BT31A017doi:https://doi.org/10.1115/GT2016-56654

Abstract

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Topics: Bearings , Temperature , Vibration , Lubricants , Temperature distribution , Clearances (Engineering) , Film thickness , Rotors , Simulation , Compressors

Behavior of Tilting–Pad Journal Bearings With Large Machining Error on Pads

Phuoc Vinh Dang, Steven Chatterton, Paolo Pennacchi, Andrea Vania, Filippo Cangioli

GT 2016; V07BT31A018doi:https://doi.org/10.1115/GT2016-56674

Abstract

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Topics: Errors , Journal bearings , Machining , Bearings , Stress , Geometry , Dimensions , Clearances (Engineering) , Damping , Flow (Dynamics)

Response of a Squeeze Film Damper-Elastic Structure System to Multiple and Consecutive Impact Loads

Luis San Andrés, Sung-Hwa Jeung

GT 2016; V07BT31A019doi:https://doi.org/10.1115/GT2016-56695

Abstract

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Topics: Dampers , Stress , Clearances (Engineering) , Damping , Transients (Dynamics) , Delays , Accounting , Aircraft , Displacement , Fluids

Scaling Laws of Radial Clearance and Bump Stiffness of Radial Foil Bearings

Srikanth Honavara Prasad, Daejong Kim

GT 2016; V07BT31A020doi:https://doi.org/10.1115/GT2016-56704

Abstract

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Topics: Clearances (Engineering) , Foil bearings , Scaling laws (Mathematical physics) , Stiffness , Bearings , Design , Deflection , Compliance , Deformation , Energy dissipation

Enhancement of the Rotordynamic Performance of a Shaft Supported by Air Foil Bearings With Vibration Damper

Behzad Zamanian Yazdi, Daejong Kim, Fangcheng Xu

GT 2016; V07BT31A021doi:https://doi.org/10.1115/GT2016-56790

Abstract

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Topics: Foil bearings , Vibration dampers , Bearings , Dampers , Rotors , Stability , Damping , Simulation , Stiffness , Vibration

Oil-Air Flow Between the Cage and Inner Race of an Aeroengine Bearing

Akinola A. Adeniyi, Hervé Morvan, Kathy Simmons

GT 2016; V07BT31A022doi:https://doi.org/10.1115/GT2016-56927

Abstract

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Topics: Bearings , Flow (Dynamics) , Ball bearings , Dynamics (Mechanics) , Fluids , Computational fluid dynamics , Cooling , Design , Drops , Engineering simulation

Performance Measurements of Gas Bearings With High Damping Structures of Polymer and Bump Foil via Electric Motor Driving Tests and 1-DOF Shaker Dynamic Loading Tests

Kyuho Sim, Jisu Park

GT 2016; V07BT31A023doi:https://doi.org/10.1115/GT2016-57345

Abstract

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Topics: Damping , Dynamic testing (Materials) , Electric motors , Gas bearings , Polymers , Bearings , Rotors , Excitation , Clearances (Engineering) , Journal bearings

Development and Validation of an Efficient TEHD Model of Tilting Pad Journal Bearings

R. Conti, A. Frilli, E. Meli, D. Nocciolini, S. Panconi, L. Pugi, A. Rindi, S. Rossin

GT 2016; V07BT31A024doi:https://doi.org/10.1115/GT2016-57401

Abstract

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Topics: Journal bearings , Fluids , Bearings , Elasticity , Heat , Modeling , Rotors , Solids , Stability , Stress

Performance Analysis of Hybrid Brush Pocket Damper Seals Using Computational Fluid Dynamics

Alexander O. Pugachev, Clemens Griebel, Stacie Tibos, Bernard Charnley

GT 2016; V07BT31A025doi:https://doi.org/10.1115/GT2016-57418

Abstract

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Topics: Computational fluid dynamics , Dampers , Damping , Stiffness , Clearances (Engineering) , Excitation , Leakage , Simulation , Transients (Dynamics) , Geometry

Increased Load Carrying Capacity of Large Tilting-Pad Journal Bearings by Injection of Cold Oil

Nico Buchhorn, Sebastian Kukla, Beate Bender

GT 2016; V07BT31A026doi:https://doi.org/10.1115/GT2016-57475

Abstract

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Topics: Journal bearings , Load bearing capacity , Bearings , Film thickness , Temperature , Deformation , Pressure , Simulation , Stress , Temperature gradient

Oil Scoop Simulation and Analysis Using CFD and SPH

Evgenia Korsukova, Arno Kruisbrink, Hervé Morvan, Paloma Paleo Cageao, Kathy Simmons

GT 2016; V07BT31A027doi:https://doi.org/10.1115/GT2016-57554

Abstract

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Topics: Computational fluid dynamics , Simulation , Particulate matter , Fluids , Nozzles , Blades , Cooling , Cutting , Engines , Flow simulation

Non-Invasive Parameter Identification in Rotordynamics via Fluid Film Bearings: Linking Active Lubrication and Operational Modal Analysis

Ilmar Ferreira Santos, Peter Kjær Svendsen

GT 2016; V07BT31A028doi:https://doi.org/10.1115/GT2016-57618

Abstract

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Topics: Bearings , Fluid films , Lubrication , Modal analysis , Rotordynamics , Pressure , Rotors , Damping , Lubricants , Signals

Influence of Gas Feeding Position on the Performance of Radial-Inflow Hydrostatic Gas Ultra-Short Journal Bearings

Chao Nie, Xiaojun Yan, Xia Chen

GT 2016; V07BT31A029doi:https://doi.org/10.1115/GT2016-57709

Abstract

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Topics: Hydrostatics , Inflow , Journal bearings , Rotors , Clearances (Engineering) , Bearings , Stability , Thrust bearings , Computational fluid dynamics , Failure

Three-Dimensional Turbulent Thermo-Elastohydrodynamic Analyses of Hybrid Thrust Foil Bearings Using Real Gas Model

Fangcheng Xu, Daejong Kim

GT 2016; V07BT31A030doi:https://doi.org/10.1115/GT2016-57766

Abstract

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Topics: Foil bearings , Thrust , Turbulence , Organic Rankine cycle , Cycles , Supercritical carbon dioxide , Flow (Dynamics) , Gas bearings , Stress , Bearings

Assessment of Porous Type Gas Bearings: Measurements of Bearing Performance and Rotor Vibrations

Luis San Andrés, Travis A. Cable, Yong Zheng, Oscar De Santiago, Drew Devitt

GT 2016; V07BT31A031doi:https://doi.org/10.1115/GT2016-57876

Abstract

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Topics: Bearings , Gas bearings , Rotor vibration , Rotors , Flow (Dynamics) , Clearances (Engineering) , Drag (Fluid dynamics) , Pressure , Pressurized gas , Stress

On the Predicted Effect of Angular Misalignment on the Performance of Oil Lubricated Thrust Collars in Integrally Geared Compressors

Travis A. Cable, Luis San Andrés, Karl Wygant

GT 2016; V07BT31A032doi:https://doi.org/10.1115/GT2016-57888

Abstract

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Topics: Compressors , Thrust , Gears , Stiffness , Flow (Dynamics) , Manufacturing , Pressure , Stress , Temperature , Compression

Design and Calibration of a Full Scale Active Magnetic Bearing Based Test Facility for Investigating Rotordynamic Properties of Turbomachinery Seals in Multiphase Flow

Andreas Jauernik Voigt, Christian Mandrup-Poulsen, Kenny Krogh Nielsen, Ilmar F. Santos

GT 2016; V07BT31A033doi:https://doi.org/10.1115/GT2016-57893

Abstract

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Topics: Calibration , Design , Magnetic bearings , Multiphase flow , Test facilities , Turbomachinery , Ocean engineering , Sensors , Compressors , Pumps

CFD Applied for the Identification of Stiffness and Damping Properties for Smooth Annular Turbomachinery Seals in Multiphase Flow

Andreas Jauernik Voigt, Piero Iudiciani, Kenny Krogh Nielsen, Ilmar F. Santos

GT 2016; V07BT31A034doi:https://doi.org/10.1115/GT2016-57905

Abstract

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Topics: Computational fluid dynamics , Damping , Multiphase flow , Stiffness , Turbomachinery , Bubbly flow , Rotors , Collaboration , Modeling , Pressure

Modeling a Spiral Groove Thrust Bearing Using 3-D, Two-Way Fluid Structure Interaction With Conjugate Heat Transfer

Kevin Hoopes, Jason C. Wilkes, Jeff Moore, Joseph Grieco, Kevin Passmore, Jerry Brady

GT 2016; V07BT31A035doi:https://doi.org/10.1115/GT2016-57933

Abstract

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Topics: Fluid structure interaction , Heat transfer , Modeling , Thrust bearings , Fluids , Simulation , Stress , Thrust , Film thickness , Bearings

Response Surface Mapping of Performance for Helical Groove Seals With Incompressible Flow

Cori Watson, Alexandrina Untaroiu, Houston G. Wood, Brian K. Weaver, Neal Morgan, Hanxiang Jin

GT 2016; V07BT31A036doi:https://doi.org/10.1115/GT2016-57945

Abstract

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Topics: Flow (Dynamics) , Response surface methodology , Design , Leakage , Damping , Density , Fluids , Stiffness , Computational fluid dynamics , Experimental design

Design of Hybrid Hydrostatic/Hydrodynamic Journal Bearings for Optimum Self-Compensation Under Misaligning External Loads

L. F. Martinez Esparza, J. G. Cervantes de Gortari, E. J. Chicurel Uziel

GT 2016; V07BT31A037doi:https://doi.org/10.1115/GT2016-58125

Abstract

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Topics: Design , Hydrostatics , Journal bearings , Stress , Bearings , Lubricants , Bearing design , Boundary-value problems , Cavitation , Clearances (Engineering)

Saturated Water Journal Bearings of a Turbo Compressor

Tadayoshi Shoyama, Kazuyuki Kouda, Takeshi Ogata

GT 2016; V07BT31A038doi:https://doi.org/10.1115/GT2016-58131

Abstract

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Topics: Compressors , Journal bearings , Turbochargers , Water , Bearings , Cavitation , Lubricants , Evaporation , Latent heat , Fluids

Aerodynamic Excitation and Damping

Experimental Investigation of the Upstream Effect of Different Low Pressure Turbine Exit Guide Vane Designs on Rotor Blade Vibration

F. Schönleitner, T. Selic, C. Schitter, F. Heitmeir, A. Marn

GT 2016; V07BT34A001doi:https://doi.org/10.1115/GT2016-56067

Abstract

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Topics: Blades , Guide vanes , Pressure , Rotors , Turbines , Vibration , Thermoelectric coolers , Acoustics , Design , Emissions

On the Effect of Axial Spacing Between Rotor and Stator Onto the Blade Vibrations of a Low Pressure Turbine Stage at Engine Relevant Operating Conditions

Andreas Marn, Florian Schönleitner, Mathias Mayr, Thorsten Selic, Franz Heitmeir

GT 2016; V07BT34A002doi:https://doi.org/10.1115/GT2016-56069

Abstract

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Topics: Blades , Engines , Pressure , Rotors , Stators , Turbines , Vibration , Excitation , Weight (Mass) , Flow (Dynamics)

On the Interaction of Multiple Traveling Wave Modes in the Flutter Vibrations of Friction-Damped Tuned Bladed Disks

Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek

GT 2016; V07BT34A003doi:https://doi.org/10.1115/GT2016-56126

Abstract

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Topics: Disks , Flutter (Aerodynamics) , Friction , Traveling waves , Vibration , Steady state , Limit cycles , Attractors , Blades , Coulombs

A Simple Model for Identifying the ‘Flutter Bite’ of Fan Blades

Fanzhou Zhao, Nigel Smith, Mehdi Vahdati

GT 2016; V07BT34A004doi:https://doi.org/10.1115/GT2016-56336

Abstract

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Topics: Blades , Flutter (Aerodynamics) , Design , Acoustics , Engines , Computation , Computational fluid dynamics , Damping , Reflection , Annulus

Simplified Estimation of Aerodynamic Damping for Bladed Rotors: Part 2 — Experimental Validation During Operation

Felix Figaschewsky, Arnold Kühhorn, Bernd Beirow, Thomas Giersch, Jens Nipkau, Ferdinand Meinl

GT 2016; V07BT34A005doi:https://doi.org/10.1115/GT2016-56458

Abstract

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Topics: Damping , Rotors , Blades , Vibration , Computation , Computational fluid dynamics , High cycle fatigue , Aerodynamics , Airfoils , Approximation

Numerical Study on Aeroelastic Instability for a Low Speed Fan

Kuen-Bae Lee, Mark Wilson, Mehdi Vahdati

GT 2016; V07BT34A006doi:https://doi.org/10.1115/GT2016-56462

Abstract

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Topics: Acoustics , Blades , Computation , Computational fluid dynamics , Cycles , Ducts , Engine design , Engineering simulation , Flutter (Aerodynamics) , Fuel consumption

Simplified Determination of Aerodynamic Damping for Bladed Rotors: Part 1 — Experimental Validation at Rest

Bernd Beirow, Thomas Maywald, Felix Figaschewsky, Christoph Rocky Heinrich, Arnold Kühhorn, Thomas Giersch

GT 2016; V07BT34A007doi:https://doi.org/10.1115/GT2016-56535

Abstract

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Topics: Damping , Rotors , Acoustic emissions , Acoustics , Pressure , Blades , Compressors , Computation , Mode shapes , Turbines

Investigation of Inlet Distortion on the Flutter Stability of a Highly Loaded Transonic Fan Rotor

Senad Iseni, Derek Micallef, Ronald Mailach

GT 2016; V07BT34A008doi:https://doi.org/10.1115/GT2016-56593

Abstract

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Topics: Flutter (Aerodynamics) , Rotors , Stability , Blades , Flow (Dynamics) , Computational fluid dynamics , Risk , Aircraft engines , Algorithms , Compressors

Shock Structure, Mode Shape, and Geometric Considerations for Low-Pressure Turbine Flutter Suppression

Joshua J. Waite, Robert E. Kielb

GT 2016; V07BT34A009doi:https://doi.org/10.1115/GT2016-56706

Abstract

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Topics: Flutter (Aerodynamics) , Mode shapes , Pressure , Shock (Mechanics) , Turbines , Geometry , Blades , Design , Stability , Aircraft engines

Numerical Investigation of Tip Clearance Flow Induced Flutter in an Axial Research Compressor

Daniel Möller, Maximilian Jüngst, Felix Holzinger, Christoph Brandstetter, Heinz-Peter Schiffer, Sebastian Leichtfuß

GT 2016; V07BT34A010doi:https://doi.org/10.1115/GT2016-56956

Abstract

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Topics: Clearances (Engineering) , Compressors , Flow (Dynamics) , Flutter (Aerodynamics) , Blades , Rotors , Vibration , Design , Pressure , Simulation

Maximum Mistuned Vibration Amplitude With Aerodynamic Damping

Carlos Martel, Luo Cuiping

GT 2016; V07BT34A011doi:https://doi.org/10.1115/GT2016-57000

Abstract

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Topics: Damping , Vibration , Disks , Finite element methods , Finite element model , Traveling waves

Aerodynamic Damping Predictions for Oscillating Airfoils in Cascades Using Moving Meshes

Ron Ho Ni, William Humber, Michael Ni, Vincent R. Capece, Michael Ooten, John Clark

GT 2016; V07BT34A012doi:https://doi.org/10.1115/GT2016-57017

Abstract

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Topics: Airfoils , Damping , Flow (Dynamics) , Cascades (Fluid dynamics) , Modeling , Numerical analysis , Pressure , Shock waves , Suction , Turbomachinery

Evaluation of Torsion Axis Positon on Turbine Blade Flutter by Direct Measurement Experiment: Rig Design and Numerical Simulation

Naoki Tani, Mizuho Aotsuka, Junichi Kazawa

GT 2016; V07BT34A013doi:https://doi.org/10.1115/GT2016-57108

Abstract

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Topics: Computer simulation , Design , Flutter (Aerodynamics) , Torsion , Turbine blades , Blades , Computational fluid dynamics , Pressure , Cascades (Fluid dynamics) , Engineering simulation

The Low Reduced Frequency Limit of Vibrating Airfoils: Part IIIA — Theoretical Quantification and Influence of Unsteady Loading

Roque Corral, Almudena Vega

GT 2016; V07BT34A014doi:https://doi.org/10.1115/GT2016-57213

Abstract

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Topics: Airfoils , Cycles , Vibration , Aerodynamics , Design , Flutter (Aerodynamics) , Mode shapes , Navier-Stokes equations , Oscillations , Pressure

Aerodynamic Excitation Analysis for Variable Tip Gap

Thomas Hauptmann, Joerg R. Seume

GT 2016; V07BT34A015doi:https://doi.org/10.1115/GT2016-57217

Abstract

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Topics: Excitation , Blades , Flow (Dynamics) , Fluid structure interaction , Rotors , Erosion , Geometry , Jet engines , Maintenance , Stators

The Low Reduced Frequency Limit of Vibrating Airfoils: Part IIIB — Numerical Quantification and Influence of Unsteady Loading

Almudena Vega, Roque Corral

GT 2016; V07BT34A016doi:https://doi.org/10.1115/GT2016-57288

Abstract

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Topics: Airfoils , Flutter (Aerodynamics) , Mode shapes , Aerodynamics , Blades , Cycles , Design , Engineering simulation , Flat plates , Pressure

Statistical Sensitivity Study of Frequency Mistuning on the Prediction of the Flutter Boundary in a Transonic Fan

Atsushi Tateishi, Toshinori Watanabe, Takehiro Himeno, Mizuho Aotsuka, Takeshi Murooka

GT 2016; V07BT34A017doi:https://doi.org/10.1115/GT2016-57295

Abstract

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Topics: Flutter (Aerodynamics) , Blades , Damping , Simulation , Aerodynamics , Computational fluid dynamics , Eigenvalues , Equations of motion , Fluid structure interaction , Fluid-dynamic forces

Comparison of Two Numerical Algorithms for Computing the Effects of Mistuning of Fan Flutter

L. Salles, M. Vahdati

GT 2016; V07BT34A018doi:https://doi.org/10.1115/GT2016-57324

Abstract

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Topics: Algorithms , Flutter (Aerodynamics) , Computation , Blades , Mode shapes , Computational fluid dynamics , Damping , Manufacturing , Annulus , Chords (Trusses)

On the Scaling of Aeroelastic Parameters for High Pressure Applications in Centrifugal Compressors

Florian Fruth, Peter Jeschke, Holger Franz

GT 2016; V07BT34A019doi:https://doi.org/10.1115/GT2016-57409

Abstract

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Topics: Compressors , High pressure (Physics) , Pressure , Errors , Flow (Dynamics) , Impellers , Reynolds number , Aerodynamics , Damping , Density

Unsteady Forces in Last Stage LP Steam Turbine Rotor Blades With Exhaust Hood

Romuald Rzadkowski, Jan Surwiło, Leszek Kubitz, Piotr Lampart, Mariusz Szymaniak

GT 2016; V07BT34A020doi:https://doi.org/10.1115/GT2016-57610

Abstract

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Topics: Blades , Exhaust systems , Rotors , Steam turbines , Pressure , Diffusers , Stators , Aerodynamics , Annulus , Boundary-value problems

Comparison Between Weak and Strong Coupling Modeling for Aeroelastic Stability of a Simple Sealing Device

Nicolas de Cacqueray, Martin Seive, Alain Kernilis

GT 2016; V07BT34A021doi:https://doi.org/10.1115/GT2016-57752

Abstract

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Topics: Modeling , Sealing (Process) , Stability , Acoustics , Cavities , Flutter (Aerodynamics) , Valves , Blades , Degrees of freedom , Energy dissipation

A GPU-Accelerated Compressible RANS Solver for Fluid-Structure Interaction Simulations in Turbomachinery

L. Mangani, E. Casartelli, G. Romanelli, Magnus Fischer, A. Gadda, P. Mantegazza

GT 2016; V07BT34A022doi:https://doi.org/10.1115/GT2016-57783

Abstract

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Topics: Fluid structure interaction , Graphics processing units , Reynolds-averaged Navier–Stokes equations , Simulation , Turbomachinery , Blades , Deformation , Flow (Dynamics) , Flutter (Aerodynamics) , Computational fluid dynamics

A New Visualization Method for Harmonic Unsteady Flows in Turbomachinery

Tobias Gezork, Paul Petrie-Repar, Torsten Fransson

GT 2016; V07BT34A023doi:https://doi.org/10.1115/GT2016-57822

Abstract

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Topics: Turbomachinery , Unsteady flow , Visualization , Waves , Cascades (Fluid dynamics) , Pressure , Blades , Compressors , Design , Flat plates

Investigations of Flutter and Aero Damping of a Turbine Blade: Part 1 — Experimental Characterization

Charles E. Seeley, Christian Wakelam, Xuefeng Zhang, Douglas Hofer, Wei-Min Ren

GT 2016; V07BT34A024doi:https://doi.org/10.1115/GT2016-57930

Abstract

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Topics: Damping , Experimental characterization , Flutter (Aerodynamics) , Turbine blades , Airfoils , Cascades (Fluid dynamics) , Air flow , Accelerometers , Aerodynamics , Computer simulation

Investigations of Flutter and Aero Damping of a Turbine Blade: Part 2 — Numerical Simulations

Wei-Min Ren, Charles E. Seeley, Xuefeng Zhang, Brian E. Mitchell, Hongbin Ju

GT 2016; V07BT34A025doi:https://doi.org/10.1115/GT2016-57935

Abstract

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Topics: Computer simulation , Damping , Flutter (Aerodynamics) , Turbine blades , Computational fluid dynamics , Turbines , Uncertainty , Blades , Cascades (Fluid dynamics) , Design

Flutter Generation and Control Using Mistuning in a Turbine Rotating Rig

Roque Corral, Josu Beloki, Paolo Calza, Robert Elliot

GT 2016; V07BT34A026doi:https://doi.org/10.1115/GT2016-57949

Abstract

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Topics: Flutter (Aerodynamics) , Turbines , Rotors , Blades , Density , Design , Pressure , Vibration , Cantilevers , Disks

A Low Speed Compressor Test Rig for Flutter Investigations

Leonie Malzacher, Silvio Geist, Dieter Peitsch, Holger Hennings

GT 2016; V07BT34A027doi:https://doi.org/10.1115/GT2016-57960

Abstract

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Topics: Compressors , Flutter (Aerodynamics) , Flow (Dynamics) , Blades , Pressure , Test facilities , Aircraft engines , Cascades (Fluid dynamics) , Flow visualization , Reynolds number