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

Topics: Fluid structure interaction , Simulation , Turbines , Airfoils , Displacement , Turbomachinery , Aeroelasticity , Cylinders , Fluid dynamics , Momentum

Reduced-Scale Model Design for a High-Speed Rotor System Based on Similitude Theory

Biao Zhou, Haotian Liang, Hui Miao, Chaoping Zang

GT 2019; V07AT30A005doi:https://doi.org/10.1115/GT2019-91112

Abstract

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Topics: Design , Rotors , Engineering prototypes , Construction , Dimensional analysis , Dynamics (Mechanics) , Engines , Geometry , Mode shapes , Rotordynamics

Structural Analysis of an Auxetic Casing Structure Incorporating Tip Blowing Casing Treatment Modification

Tobias Schmidt, Jan Lorenz, Volker Gümmer, Andreas Hupfer

GT 2019; V07AT30A006doi:https://doi.org/10.1115/GT2019-91272

Abstract

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Topics: Structural analysis , Stress , Clearances (Engineering) , Compressors , Design , Additive manufacturing , Stability , Aircraft engines , Construction , Fatigue

Fatigue, Fracture, and Life Prediction

Novel and Applicable Method to Determine Equivalent Strain Range and Equivalent Strain Direction Under Multiaxial Non-Proportional Loading

Charles R. Krouse, Grant O. Musgrove, Taewoan Kim, Seungmin Lee, Muhyoung Lee

GT 2019; V07AT31A001doi:https://doi.org/10.1115/GT2019-90174

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Topics: Fatigue life , Finite element model , Low cycle fatigue , Stress , Transients (Dynamics) , Turbine blades

Assessment of the Theta Projection Model for Interpolating Creep Deformation

Jimmy Perez, Calvin M. Stewart

GT 2019; V07AT31A002doi:https://doi.org/10.1115/GT2019-90267

Abstract

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Topics: Creep , Stress , Fittings , Interpolation , Temperature , Algorithms , Alloys , Constitutive equations , Databases , Deformation

Parametric Design of Blisk Repairs by Patching Considering High Cycle Fatigue

Ricarda Berger, Benedikt Hofmeister, Cristian G. Gebhardt, Raimund Rolfes

GT 2019; V07AT31A003doi:https://doi.org/10.1115/GT2019-90351

Abstract

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Topics: High cycle fatigue , Maintenance , Parametric design , Compressors , Fatigue strength , Geometry , Welding , Algorithms , Damage , High pressure (Physics)

Diagnostics of Fatigue Crack in the Shaft Using Spectral Kurtosis

Sagi Rathna Prasad, A. S. Sekhar

GT 2019; V07AT31A004doi:https://doi.org/10.1115/GT2019-90373

Abstract

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Topics: Fatigue cracks , Rotors , Stress , Vibration , Accelerometers , ASTM International , Bearings , Failure , Gears , Laser Doppler vibrometers

Comparison of the Predicted Creep Life and Hot Spin Tests for the Turbine Wheel in Automotive Turbocharger

K. Sakamoto, M. Ozaki, Y. Furuta, T. Yoshida

GT 2019; V07AT31A005doi:https://doi.org/10.1115/GT2019-90424

Abstract

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Topics: Creep , Particle spin , Rotation , Spin (Aerodynamics) , Turbines , Turbochargers , Wheels , Computational fluid dynamics , Finite element methods , Damage

Assessment of Calibration Approaches for the Stress Relaxation Test

Jacob Pellicotte, Mario Cotto, Calvin Stewart

GT 2019; V07AT31A006doi:https://doi.org/10.1115/GT2019-90616

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Topics: Calibration , Relaxation (Physics) , Stress , Creep , Superalloys , Displacement , Temperature , Algorithms , Force control , Manufacturing technology

Application of the Wilshire Stress-Rupture and Minimum-Creep-Strain-Rate Prediction Models for Alloy P91 in Tube, Plate and Pipe Form

Jaime A. Cano, Calvin M. Stewart

GT 2019; V07AT31A007doi:https://doi.org/10.1115/GT2019-90625

Abstract

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Topics: Alloys , Creep , Pipes , Rupture , Stress , Design , Boundary-value problems , Testing , Calibration , Constitutive equations

Development and Application of Minimum Creep Strain Rate Metamodeling

Ricardo Vega, Calvin Stewart

GT 2019; V07AT31A008doi:https://doi.org/10.1115/GT2019-90637

Abstract

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Topics: Creep , Calibration , Computer software , Databases , Algorithms , Alloys , ASTM International , Stress

Experimental Investigation on the Creep and Low Cycle Fatigue Behaviors of a Serviced Turbine Blade

Zhenlei Li, Duoqi Shi, Xiaoguang Yang, Nina Li

GT 2019; V07AT31A009doi:https://doi.org/10.1115/GT2019-90717

Abstract

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Topics: Creep , Low cycle fatigue , Turbine blades , Fatigue , Blades , Fracture (Materials) , Deformation , Cycles , Failure , Pressure

Untwist Creep Analysis of Gas Turbine First Stage Blade

Anthony Jarrett, Veda V. Erukulla, Ashok K. Koul

GT 2019; V07AT31A010doi:https://doi.org/10.1115/GT2019-90979

Abstract

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Topics: Blades , Creep , Gas turbines , Stress , Damage , High temperature , Temperature , Turbine blades , Alloys , Elongation

Assessment of Long Term Creep Using Strain Rate Matching From the Stepped Isostress Method

Robert Mach, Jacob Pellicotte, Amanda Haynes, Calvin Stewart

GT 2019; V07AT31A011doi:https://doi.org/10.1115/GT2019-91137

Abstract

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Topics: Creep , Stress , Temperature , Calibration , Matlab , Rupture , Alloys , Composite materials , Energy / power systems , Fittings

A Constitutive Model for Predicting Modified Creep Strain Rates due to Cyclic Loading of Gas Turbine Components

Richard Green, Jonathan Douglas, Andrew Moffat, Brent Scaletta

GT 2019; V07AT31A012doi:https://doi.org/10.1115/GT2019-91521

Abstract

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Topics: Constitutive equations , Creep , Gas turbines , Stress , Damage , Fatigue , Cycles , Design , Industrial gases , Materials properties

Experimental and Numerical Investigation on the Influence of Thermally Induced Stress Gradients on Fatigue Life of the Nickel-Base Alloy Mar-M247

Marcus Thiele, Stefan Eckmann, Min Huang, Uwe Gampe, Kathrin A. Fischer, Michael Schlesinger

GT 2019; V07AT31A013doi:https://doi.org/10.1115/GT2019-91540

Abstract

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Topics: Alloys , Fatigue life , Nickel , Stress , Low cycle fatigue , High temperature , Temperature , Damage , Flux (Metallurgy) , Heat

A Critical Plane Approach for LCF Evaluation of Gas Turbine Disks and Rotors

Andrea Riva, Sergei Riazantsev, Stefano Foletti, Stefano Beretta

GT 2019; V07AT31A014doi:https://doi.org/10.1115/GT2019-91572

Abstract

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Topics: Disks , Gas turbines , Rotors , Damage , Stress , Fatigue damage , High temperature , Low cycle fatigue , Shear (Mechanics) , Testing

Life Assessment of Large Gas Turbine Blades

Santosh B. Narasimhachary, Kyle Smith, Sachin R. Shinde, Christian Amann, Kai Kadau, Saiganesh Iyer

GT 2019; V07AT31A015doi:https://doi.org/10.1115/GT2019-91630

Abstract

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Topics: Blades , Gas turbines , Fracture (Materials) , Fracture mechanics , Manufacturing , Computers , Engineering instruments , Geometry , Investment casting (Process) , Nickel

Constitutive Modeling of TMF and Creep-Fatigue of a Ni-Base Alloy

Nathan O’Nora, Thomas Bouchenot, Grant Geiger, Ali P. Gordon

GT 2019; V07AT31A016doi:https://doi.org/10.1115/GT2019-91695

Abstract

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Topics: Alloys , Creep , Fatigue , Modeling , Hardening , Stress , Fittings , High temperature , Kinematics , Engineering simulation

An Approach to Identify Bounding Damage Locations for Condition Based Structural Integrity Assessments of Gas Turbine Components

Richard Green, Jonathan Douglas, Andrew Moffat, Brent Scaletta

GT 2019; V07AT31A017doi:https://doi.org/10.1115/GT2019-91804

Abstract

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Topics: Damage , Gas turbines , Stress , Turbines , Creep , Industrial gases , Cycles , Design , Computational fluid dynamics , Engines

Confidence Bound Estimation for Mechanism-Based Small Crack Growth Probabilistic Design Life Predictions

Patrick J. Golden, Sushant K. Jha, James M. Larsen

GT 2019; V07AT31A018doi:https://doi.org/10.1115/GT2019-91860

Abstract

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Topics: Design , Fracture (Materials) , Gas turbines , Air Force , Fatigue , Fatigue cracks , Fatigue life , Fatigue testing , Fractography , Nucleation (Physics)

A Crystal Visco-Plastic Model for Ni-Base Superalloys Under Low Cycle Fatigue

Navindra Wijeyeratne, Firat Irmak, Grant Geiger, Jun-Young Jeon, Ali Gordon

GT 2019; V07AT31A019doi:https://doi.org/10.1115/GT2019-91903

Abstract

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Topics: Crystals , Low cycle fatigue , Superalloys , Gas turbines , Matlab , Stress , Anisotropy , Blades , Constitutive equations , Deformation

A Bayesian Framework for Estimation of Strain Life Lower Bounds and its Application to IN617

Arinan Dourado, Firat Irmak, Felipe A. C. Viana, Ali P. Gordon

GT 2019; V07AT31A020doi:https://doi.org/10.1115/GT2019-91958

Abstract

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Topics: Alloys , Calibration , Combustion , Cycles , Design , Electromagnetic scattering , Failure , Fatigue life , Low cycle fatigue , Optimization

Probabilistic Methods

Quantification of Performance Uncertainty for a Transonic Compressor Rotor Using an Adaptive NIPC Method

Jiaqi Luo, Zhiheng Xia, Feng Liu

GT 2019; V07AT32A001doi:https://doi.org/10.1115/GT2019-90316

Abstract

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Topics: Compressors , Rotors , Uncertainty , Blades , Pressure , Turbomachinery , Chaos , Flow (Dynamics) , Polynomials , Arches

Probabilistic Fracture Mechanics Framework Including Crack Nucleation of Rotor Forging Flaws

Francesco Radaelli, Kai Kadau, Christian Amann, Peter Gumbsch

GT 2019; V07AT32A002doi:https://doi.org/10.1115/GT2019-90418

Abstract

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Topics: Forging , Fracture (Materials) , Fracture mechanics , Nucleation (Physics) , Rotors , Failure , Probability , Fatigue cracks , Cycles , Fatigue

Accelerated Multi-Fidelity Emulator Modeling for Probabilistic Rotor Response Study

Harok Bae, Ian M. Boyd, Emily Carper, Jeff Brown

GT 2019; V07AT32A003doi:https://doi.org/10.1115/GT2019-90513

Abstract

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Topics: Modeling , Rotors , Blades

Robust Optimization of Flexible Rotor Systems With Uncertain Parameters via Interval Analysis Method

Jie Hong, ZheFu Yang, YaoYu Ni, YanHong Ma

GT 2019; V07AT32A004doi:https://doi.org/10.1115/GT2019-90586

Abstract

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Topics: Optimization , Rotors , Uncertainty , Design , Stiffness , Stress , Bearings , Design methodology , Dynamic response , Electromagnetic scattering

Stochastic Fatigue Life Prediction Based on a Reduced Data Set

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

GT 2019; V07AT32A005doi:https://doi.org/10.1115/GT2019-90624

Abstract

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Topics: Fatigue life , Cycles , Failure , Monte Carlo methods , Stress , Complex systems , Fatigue , High cycle fatigue , Weibull distribution

Bayesian Analysis of In-Situ High-Resolution X-Ray Diffraction Synchrotron Experiments of Ti-6Al-4V Specimens Undergoing Tensile Loading

Nicholas Armstrong, Peter A. Lynch, Sitarama R. Kada, Pavel Cizek, Justin A. Kimpton, Ross A. Antoniou

GT 2019; V07AT32A006doi:https://doi.org/10.1115/GT2019-91230

Abstract

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Topics: Resolution (Optics) , X-ray diffraction , Damage , Dislocations , Fracture (Materials) , Aircraft engines , Density , Stress , Transmission electron microscopy , X-rays

Point Cloud to Parameter: An Inverse Geometric Approach to Probabilistic Design

Christopher Meckstroth, Jeffrey Brown

GT 2019; V07AT32A007doi:https://doi.org/10.1115/GT2019-91652

Abstract

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Topics: Design , Blades , Geometry , Dimensions , Manufacturing , Algorithms , Computer-aided design , Deformation , Finite element analysis , Gas turbines

Rotordynamics

Determination of the Vibration Within a Squeeze-Film Damper Under Rotational Unbalance Conditions From Externally Mounted Sensors

Ghaith Ghanim Al-Ghazal, Philip Bonello, Sergio G. Torres Cedillo

GT 2019; V07AT33A001doi:https://doi.org/10.1115/GT2019-90017

Abstract

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Topics: Dampers , Sensors , Vibration , Bearings , Rotors , Vibration measurement , Artificial neural networks , Instrumentation , Inverse problems

Dynamic Analysis and Optimization on Assembly Parameters of Rod Fastening Rotor System With Manufacturing Tolerances

Bingxi Zhao, Qi Yuan, Pu Li

GT 2019; V07AT33A002doi:https://doi.org/10.1115/GT2019-90256

Abstract

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Topics: Dynamic analysis , Manufacturing , Optimization , Rotors , Disks , Pressure , Stiffness , Bearings , Errors , Tie rods

Nonlinear Reduced Dynamic Model of Turbofan Engine for Investigation of Engine Structural Frame Vibrations After Fan Blade Out Event

Ilya Ivanov, Boris Blinnik, Vladislav Myasnikov

GT 2019; V07AT33A003doi:https://doi.org/10.1115/GT2019-90367

Abstract

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Topics: Blades , Dynamic models , Engines , Structural frames , Turbofans , Vibration , Stress , Rotors , Condensation , Differential equations

Computational Study of the Non-Parametric Squeeze Film Damper Bearing Inverse Model Based on Artificial Neural Networks Applied to a Rotor-Casing System Running on Unsupported SFDs

Sergio G. Torres Cedillo, Ghaith Ghanim Al-Ghazal, Philip Bonello, Jacinto Cortés Pérez, Alberto Reyes Solís

GT 2019; V07AT33A004doi:https://doi.org/10.1115/GT2019-90390

Abstract

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Topics: Artificial neural networks , Bearings , Dampers , Rotors , Aircraft engines , Vibration , Complex systems , Instrumentation , Manufacturing , Reliability

Simple Contact Stiffness Model Validation for Tie Bolt Rotor Design With Butt Joints and Pilot Fits

Aaron M. Rimpel, Matthew Leopard

GT 2019; V07AT33A005doi:https://doi.org/10.1115/GT2019-90396

Abstract

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Topics: Design , Model validation , Rotors , Stiffness , Tie rods , Compressors , Couplings , Modeling , Finite element analysis , High pressure (Physics)

Rotordynamic Stability Evaluation With Constructed Forward Whirl Signals Based on Full Spectrum Technique: Numerical and Experimental Investigation

Qihang Li, Fulei Chu

GT 2019; V07AT33A006doi:https://doi.org/10.1115/GT2019-90417

Abstract

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Topics: Signals , Stability , Whirls , Excitation , Carbon capture and storage , Rotors , Signal processing , Actuators , Bearings , Compressors

Dynamics of a Rod-Fastened Rotor Considering the Bolt Loosening Effect

Pu Li, Qi Yuan, Bingxi Zhao, Jin Gao

GT 2019; V07AT33A007doi:https://doi.org/10.1115/GT2019-90573

Abstract

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Topics: Dynamics (Mechanics) , Rotors , Dynamic response , Aircraft engines , Engineering simulation , Equations of motion , Gas turbines , Pressure , Simulation , Stiffness

Transfer Function Modeling and Experimental Variation of Rotor System Considering Morton Effect Caused in Journal Bearing

Shota Yabui, Jotaro Chiba, Takafumi Suzuki, Shigeyuki Tomimatsu, Tsuyoshi Inoue

GT 2019; V07AT33A008doi:https://doi.org/10.1115/GT2019-91135

Abstract

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Topics: Journal bearings , Modeling , Rotors , Transfer functions , Vibration , Machinery , Computational fluid dynamics , Frequency response , Computer simulation , Construction

Vibration Characteristics of Rotor System Considering Gear Meshing

Jie Hong, XiRu Xu, LiMing Jiang, YanHong Ma

GT 2019; V07AT33A009doi:https://doi.org/10.1115/GT2019-91445

Abstract

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Topics: Displacement , Gears , Rotors , Vibration

High Temperature Magnetic Thrust Bearing: Theory and Experiment

Mohammad W. Mohiuddin, Alan B. Palazzolo, Randy P. Tucker, Desireddy V. Reddy, Andrew J. Provenza, Albert F. Kascak

GT 2019; V07AT33A010doi:https://doi.org/10.1115/GT2019-91544

Abstract

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Topics: High temperature , Thrust bearings , Disks , Stress , Temperature , Thrust , Bearings , Design , Magnetic bearings , Magnetic fields

A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique

Kevin Hoopes, J. Jeffrey Moore, Aaron Rimpel, Chris Kulhanek, Balaji Venkataraman

GT 2019; V07AT33A011doi:https://doi.org/10.1115/GT2019-91904

Abstract

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Topics: Cavities , Compressor impellers , Computational fluid dynamics , Transients (Dynamics) , Whirls , Impellers , Modeling , Simulation , Stability

Experimental Validation of Friction Models for Rotor-Rubbing

Juan Jauregui, Oscar De Santiago Duran

GT 2019; V07AT33A012doi:https://doi.org/10.1115/GT2019-91926

Abstract

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Topics: Friction , Rotors , Accelerometers , Bearings , Force sensors , Physics , Vibration , Wavelet transforms

Improvement of Rotordynamic Performance of Integrally Geared Centrifugal Compressors Through a Systematic Design Modification Approach

Zhusan Luo, Carl Schwarz

GT 2019; V07AT33A013doi:https://doi.org/10.1115/GT2019-91995

Abstract

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Topics: Compressors , Design , Bearings , Geometry , Vibration , Design methodology , Impellers , Petrochemicals , Reliability , Separation (Technology)

Aerodynamic Excitation and Damping

Aerodynamic Excitation Analysis of a Radial Turbine Featuring a Multi-Channel Casing Design

Ahmed Farid Hassan, Jennifer Blackburne, Nikola Kovachev, Markus Schatz, Damian M. Vogt

GT 2019; V07AT36A001doi:https://doi.org/10.1115/GT2019-90105

Abstract

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Topics: Design , Excitation , Turbines , Rotors , Blades , Modal analysis , Pressure , Aerodynamics , Computer simulation , Engines

Multi-Wave Vibration Caused by Flutter Instability and Nonlinear Tip Shroud Friction

Johann Gross, Malte Krack

GT 2019; V07AT36A002doi:https://doi.org/10.1115/GT2019-90247

Abstract

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Topics: Flutter (Aerodynamics) , Friction , Vibration , Waves , Traveling waves , Blades , Chain , Disks , Dynamics (Mechanics) , Eigenvalues

Prediction of Low-Engine-Order Excitation due to a Non-Symmetrical Nozzle Ring in a Radial Turbine by Means of the Nonlinear Harmonic Approach

Nikola Kovachev, Tobias R. Müller, Christian U. Waldherr, Damian M. Vogt

GT 2019; V07AT36A003doi:https://doi.org/10.1115/GT2019-90366

Abstract

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Topics: Engines , Excitation , Nozzles , Symmetry (Physics) , Turbines , Blades , High cycle fatigue , Inflow , Vibration , Annulus

A Method to Evaluate the Sensitivity of Aerodynamic Damping to Mode Shape Perturbations

Jing Li, Suryarghya Chakrabarti, Wei-Min Ren

GT 2019; V07AT36A004doi:https://doi.org/10.1115/GT2019-90387

Abstract

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Topics: Damping , Mode shapes , Blades , Finite element methods , Computational fluid dynamics , Flutter (Aerodynamics) , Cycles , Design , Excitation , Friction

Numerical and Experimental Studies of Labyrinth Seal Aeroelastic Instability

Toshimasa Miura, Naoto Sakai

GT 2019; V07AT36A005doi:https://doi.org/10.1115/GT2019-90427

Abstract

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Topics: Aircraft engines , Clearances (Engineering) , Flow (Dynamics) , Fluid structure interaction , Flutter (Aerodynamics) , Geometry , Leakage , Numerical analysis , Pressure , Rotation

Hydro Francis Runner Stability and Forced Response Calculations

Charles Seeley, Sunil Patil, Andy Madden, Stuart Connell, Gwenael Hauet, Laith Zori

GT 2019; V07AT36A006doi:https://doi.org/10.1115/GT2019-90456

Abstract

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Topics: Stability , Damping , Finite element analysis , Computational fluid dynamics , Fluids , Acoustics , Design , Fluid structure interaction , Flutter (Aerodynamics) , Hydropower

Reducing Blade Force Response in a Radial Turbine by Means of Jet Injection

Stephan Netzhammer, Damian M. Vogt, Stephan Kraetschmer, Johannes Leweux, Jennifer Blackburne

GT 2019; V07AT36A007doi:https://doi.org/10.1115/GT2019-90541

Abstract

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Topics: Blades , Turbines , Vibration , Excitation , Air jets , Failure , High cycle fatigue , Computation , Computational fluid dynamics , Computer software

Effect of Rotating Instabilities on Aerodynamic Damping of Axial Flow Fan Blades

Weichao Yang, Yanrong Wang, Le Han, Xiaobo Zhang, Zichao Li

GT 2019; V07AT36A008doi:https://doi.org/10.1115/GT2019-90651

Abstract

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Topics: Axial flow , Blades , Damping , Computer simulation , Pressure , Resonance ionization spectroscopy , Simulation , Aeroelasticity , Compressors , Eigenvalues

Aeroelastic and Aerodynamic Investigation of a Low Pressure Turbine Under the Influence of a Circumferential Inlet Distortion

L. Simonassi, M. Zenz, P. Bruckner, F. Heitmeir, A. Marn

GT 2019; V07AT36A009doi:https://doi.org/10.1115/GT2019-90887

Abstract

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Topics: Pressure , Turbines , Blades , Engines , Inflow , Probes , Rotor vibration , Aerodynamics , Aircraft engines , Architecture

Analysis of Vortex Ingestion Impact on the Dynamic Response of the Fan in Resonance Condition

Thomas Berthelon, Alain Dugeai, Jonathan Langridge, Fabrice Thouverez

GT 2019; V07AT36A010doi:https://doi.org/10.1115/GT2019-90939

Abstract

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Topics: Dynamic response , Resonance , Vortices , Vibration , Aerodynamics , Aircraft , Blades , Clearances (Engineering) , Failure , Flow (Dynamics)

Validation Studies of Linear Oscillating Compressor Cascade and Use of Influence Coefficient Method

H. M. Phan, L. He

GT 2019; V07AT36A011doi:https://doi.org/10.1115/GT2019-90941

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Clearances (Engineering) , Blades , Boundary layers , Computational fluid dynamics , Damping , Bubbles , Modeling , Stability

Influence of Tip Shroud Modeling on the Flutter Stability of a Low Pressure Turbine Rotor

Lorenzo Pinelli, Federico Vanti, Andrea Arnone, Benjamin Beßling, Damian M. Vogt

GT 2019; V07AT36A012doi:https://doi.org/10.1115/GT2019-91204

Abstract

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Topics: Flutter (Aerodynamics) , Modeling , Pressure , Rotors , Stability , Turbines , Blades , Finite element methods , Finite element model , Computational fluid dynamics

Nonsynchronous Vibration Associated With Transonic Fan Blade Untwist

Yaozhi Lu, Bharat Lad, Mehdi Vahdati, Sina C. Stapelfeldt

GT 2019; V07AT36A013doi:https://doi.org/10.1115/GT2019-91286

Abstract

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Topics: Blades , Vibration , Geometry , Manufacturing , Engines , Aircraft engines , Displacement , Fatigue damage , Shock (Mechanics) , Stress

An Inverse Approach to Identify Tuned Aerodynamic Damping, System Frequencies and Mistuning: Part 3 — Application to Engine Data

Felix Figaschewsky, Arnold Kühhorn, Bernd Beirow, Thomas Giersch, Sven Schrape, Jens Nipkau

GT 2019; V07AT36A014doi:https://doi.org/10.1115/GT2019-91337

Abstract

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Topics: Damping , Engines , Blades , Engineering simulation , Rotors , Simulation , Compressors , Equations of motion , Frequency response , High pressure (Physics)

Evaluating Splitter Blade Designs to Avoid Impeller Failure in a High-Speed Unshrouded Centrifugal Compressor

Alex Curtin, Reid A. Berdanier, Robert F. Kunz, Michael L. Jonson

GT 2019; V07AT36A015doi:https://doi.org/10.1115/GT2019-91359

Abstract

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Topics: Blades , Compressors , Failure , Impellers , Computational fluid dynamics , Inlet guide vanes , Failure mechanisms , Shock waves , Boundary layers , Cracking (Materials)

Rig Testing of the Operability of a Transonic Compressor Blade of an Industrial Gas Turbine

Hyunsu Kang, Sungjong Ahn, Kyusic Hwang, Justin Bock, Jeongseek Kang, Matthew Montgomery

GT 2019; V07AT36A016doi:https://doi.org/10.1115/GT2019-91468

Abstract

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Topics: Blades , Compressors , Flow-induced vibrations , Flutter (Aerodynamics) , Industrial gases , Testing , Turbines

Tip-Shroud Labyrinth Seal Effect on the Flutter Stability of Turbine Rotor Blades

Roque Corral, Michele Greco, Almudena Vega

GT 2019; V07AT36A017doi:https://doi.org/10.1115/GT2019-91489

Abstract

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Topics: Blades , Flutter (Aerodynamics) , Rotors , Stability , Turbines , Airfoils , Cavities , Computer simulation , Cycles , Gas turbines

Design Considerations for High Pressure Turbo Expanders Supported by Active Magnetic Bearings

Alice Innocenti, Francesco Cangioli, Giuseppe Iurisci, Davide Biliotti

GT 2019; V07AT36A018doi:https://doi.org/10.1115/GT2019-91492

Abstract

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Topics: Design , High pressure (Physics) , Magnetic bearings , Turbochargers , Impellers , Pressure , Rotors , Computational fluid dynamics , Control systems , Density

Acoustic and Convective Mechanisms Contributing to Non-Synchronous-Vibrations in a Multistage Compressor

Christoph Brandstetter, Benoit Paoletti, Xavier Ottavy

GT 2019; V07AT36A019doi:https://doi.org/10.1115/GT2019-91514

Abstract

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Topics: Acoustics , Compressors , Vibration , Machinery , Clearances (Engineering) , Flow (Dynamics) , Locks (Waterways) , Blades , Design , Engines

Nonlinear Aerodynamic Damping in a Highly Loaded Vibrating Compressor Cascade

Matthias Schuff, Virginie Chenaux

GT 2019; V07AT36A020doi:https://doi.org/10.1115/GT2019-91550

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Damping , Blades , Oscillations , Transonic flow , Deflection , Engineering simulation , Shock (Mechanics) , Simulation

Conceptual Flutter Analysis of Stepped Labyrinth Seals

Roque Corral, Almudena Vega, Michele Greco

GT 2019; V07AT36A021doi:https://doi.org/10.1115/GT2019-91621

Abstract

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Topics: Flutter (Aerodynamics) , Torsion , Stability , Acoustics , Cycles , Damping , Displacement , Pressure

Forced Response Analysis of a Radial Turbine With Different Modelling Methods

Yang Gao, Mauricio Gutierrez Salas, Paul Petrie-Repar, Tobias Gezork

GT 2019; V07AT36A022doi:https://doi.org/10.1115/GT2019-91947

Abstract

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Topics: Modeling , Turbines , Engineering simulation , Simulation , Computational fluid dynamics , Damping , Boundary-value problems , Excitation , High cycle fatigue , Vibration

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