Topics: Databases , Failure , Fracture (Materials) , Probabilistic risk assessment , Response surface methodology , Risk assessment , Stress , Weight (Mass)

Energy Dissipation Metrics for Fatigue Damage Detection in the Short Crack Regime for Aluminum Alloys

Susheel Dharmadhikari, Amrita Basak

GT 2021; V09BT26A004doi:https://doi.org/10.1115/GT2021-58787

Abstract

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Topics: Aluminum alloys , Damage , Energy dissipation , Fatigue damage , Fracture (Materials)

Study on Relationship Between Dislocation Density and Creep Strain Rate of Single Crystal Ni Based Superalloy for Gas Turbines Using the Discrete Cosine Transform

Hideo Hiraguchi

GT 2021; V09BT26A005doi:https://doi.org/10.1115/GT2021-58801

Abstract

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Topics: Creep , Crystals , Dislocation density , Gas turbines , Stress , Superalloys

On the Creep-Fatigue Design of Double Skin Transpiration Cooled Components Towards Hotter Turbine Cycle Temperatures

Christos G. Skamniotis, Alan C. F. Cocks

GT 2021; V09BT26A006doi:https://doi.org/10.1115/GT2021-58836

Abstract

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Topics: Creep , Cycles , Design , Fatigue , Skin , Temperature , Thermal stresses , Transpiration , Turbines

Experimental and Numerical Investigation of High-Temperature Multi-Axial Fatigue

Harish Ramesh Babu, Marco Böcker, Mario Raddatz, Sebastian Henkel, Horst Biermann, Uwe Gampe

GT 2021; V09BT26A007doi:https://doi.org/10.1115/GT2021-58959

Abstract

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Topics: Fatigue , High temperature , Simulation

Crystal Visco-Plastic Model for Directionally Solidified Ni-Base Superalloys Under Monotonic and Low Cycle Fatigue

Navindra Wijeyeratne, Firat Irmak, Ali P. Gordon

GT 2021; V09BT26A008doi:https://doi.org/10.1115/GT2021-59581

Abstract

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Topics: Crystals , Low cycle fatigue , Modeling , Superalloys , Grain boundaries , Temperature , Anisotropy , Constitutive equations , Deformation , Gas turbines

Experimental and Analytical Investigation of Cyclic Crack Initiation in Nickel Based Super Alloy With Stress Concentration Features

Alex Torkaman, Steve Fiebiger, Nathan O’Nora, Devin O’Neal, Ali Gordon

GT 2021; V09BT26A009doi:https://doi.org/10.1115/GT2021-59608

Abstract

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Topics: Alloys , Fracture (Materials) , Nickel , Stress concentration , Turbine blades

HCF Optimization of a High Speed Variable Geometry Turbine

Alister Simpson, Sung in Kim, Jongyoon Park, Seong Kwon, Sejong Yoo

GT 2021; V09BT26A010doi:https://doi.org/10.1115/GT2021-59626

Abstract

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Topics: Geometry , High cycle fatigue , Optimization , Turbines , Blades , Stress , Computational fluid dynamics , Pressure , Vibration , Cycles

Computational Model of Mechano-Electrochemical Effect of Aluminum Alloys Corrosion

Hessein Ali, Zachary Stein, Quentin Fouliard, Hossein Ebrahimi, Peter Warren, Seetha Raghavan, Ranajay Ghosh

GT 2021; V09BT26A011doi:https://doi.org/10.1115/GT2021-59681

Abstract

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Topics: Aluminum alloys , Computer simulation , Corrosion , Stress corrosion cracking , Aerospace industry , Aerospace systems , Aircraft , Alloys , Deformation , Electrochemistry

Fretting Fatigue – An Integral Simulation Approach to Strengthening by Shot Peening

Patrick Gerken, Christoph H. Richter

GT 2021; V09BT26A012doi:https://doi.org/10.1115/GT2021-59905

Abstract

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Topics: Fatigue , Shot peening , Simulation

Data Driven Approach to Analyzing The Impact of Power Plant Cycling on Air Preheater Degradation and Remaining Useful Life

Himanshu Sharma, Veronica Adetola, Laurentiu Marinovici, Herbert T. Schaef

GT 2021; V09BT26A013doi:https://doi.org/10.1115/GT2021-59914

Abstract

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Topics: Power stations , Service life (Equipment)

Mechanical Testing of Additively Manufactured Superalloy Lugs

Sushovan Roychowdhury, Henrik Karlsson, Björn Henriksson, Pher-Ola Carlson

GT 2021; V09BT26A014doi:https://doi.org/10.1115/GT2021-60070

Abstract

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Topics: Additive manufacturing , Lasers , Mechanical testing , Superalloys

Structures and Dynamics: Probabilistic Methods

A Reduced Order Modeling Approach to Probabilistic Creep-Damage Predictions in Finite Element Analysis

Md Abir Hossain, Jacqueline R. Cottingham, Calvin M. Stewart

GT 2021; V09BT27A001doi:https://doi.org/10.1115/GT2021-58480

Abstract

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Topics: Creep , Damage , Finite element analysis , Modeling , Uncertainty

Improved Rotor Design With Combined 3D-2D Probabilistic Approach

Lukas Schuchard, Matthias Voigt, Ronald Mailach, Peter Dumstorff, Armin de Lazzer, Henning Almstedt

GT 2021; V09BT27A002doi:https://doi.org/10.1115/GT2021-58620

Abstract

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Topics: Design , Rotors , Blades , Stress , Transients (Dynamics) , Steam turbines , Thermomechanics , Boundary-value problems , Low cycle fatigue , Pressure

A Probabilistic Machine Learning Framework for Explicit Inverse Design of Industrial Gas Turbine Blades

Sayan Ghosh, Valeria Andreoli, Govinda A. Padmanabha, Cheng Peng, Steven Atkinson, Piyush Pandita, Thomas Vandeputte, Nicholas Zabaras, Liping Wang

GT 2021; V09BT27A003doi:https://doi.org/10.1115/GT2021-58842

Abstract

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Topics: Design , Industrial gases , Machine learning , Turbine blades

High-Performance Computing Probabilistic Fracture Mechanics Implementation for Gas Turbine Rotor Disks on Distributed Architectures Including Graphics Processing Units (GPUs)

Mrugesh Gajjar, Christian Amann, Kai Kadau

GT 2021; V09BT27A004doi:https://doi.org/10.1115/GT2021-59295

Abstract

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Topics: Architecture , Disks , Fatigue cracks , Fracture mechanics , Gas turbines , Graphics processing units , Rotors , Simulation

Bayesian Optimization for Multi-Objective High-Dimensional Turbine Aero Design

Yiming Zhang, Sayan Ghosh, Thomas Vandeputte, Liping Wang

GT 2021; V09BT27A005doi:https://doi.org/10.1115/GT2021-59745

Abstract

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Topics: Design , Optimization , Turbines

Structures and Dynamics: Rotordynamics

Rotordynamic Evaluation of a Large High-Speed Rotor Equipped With Flexure Pivot Journal Bearings and Integral Squeeze Film Damper

Giuseppe Vannini, Alice Innocenti, Filippo Cangioli, Kim Jongsoo

GT 2021; V09BT28A001doi:https://doi.org/10.1115/GT2021-58800

Abstract

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Topics: Bearings , Bending (Stress) , Dampers , Journal bearings , Rotors

Dynamic Analysis of a Coupled Dual-Rotor With Squeeze Film Damper Considering Sudden Unbalance

Ying Cui, Yuxi Huang, Guogang Yang, Yongliang Wang, Han Zhang

GT 2021; V09BT28A002doi:https://doi.org/10.1115/GT2021-58824

Abstract

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Topics: Dampers , Damping , Dynamic analysis , Rotors

Rotor-Blade Interaction During Blade Resonance Drive-Through

Roland Grein, Ulrich Ehehalt, Christian Siewert, Norbert Kill

GT 2021; V09BT28A003doi:https://doi.org/10.1115/GT2021-59160

Abstract

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Topics: Blades , Resonance , Rotors , Vibration , Bearings , Combined cycle power stations , Cycles , Fatigue , Plant design , Pressure

System Level Analysis of Compressor Eye-Labyrinth Seal Rotordynamic Forces: A Computational Fluid Dynamics Approach

Md Shujan Ali, Farzam Mortazavi, Alan Palazzolo

GT 2021; V09BT28A004doi:https://doi.org/10.1115/GT2021-59725

Abstract

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Topics: Compressors , Computational fluid dynamics , Rotordynamics

Test and Theory for a Refined Structural Model of a Hirth Coupling

Baik Jin Kim, Joseph Oh, Alan Palazzolo

GT 2021; V09BT28A005doi:https://doi.org/10.1115/GT2021-59970

Abstract

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Topics: Algorithms , Compressors , Computation , Deformation , Finishes , Finite element analysis , Finite element methods , Force measurement , Geometry , Modal analysis

An Unconventional Method for the Diagnosis and Study of Generator Rotor Thermal Bows

Steven Chatterton, Paolo Pennacchi, Andrea Vania

GT 2021; V09BT28A006doi:https://doi.org/10.1115/GT2021-60036

Abstract

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Topics: Generators , Machinery , Regression models , Rotors , Vibration

Method of Coupled Vibration Control for Dual Rotor System With Inter-Shaft Bearing

Yanhong Ma, Chenglong Shi, Bo Sun, Jie Hong

GT 2021; V09BT28A007doi:https://doi.org/10.1115/GT2021-60162

Abstract

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Topics: Bearings , Rotors , Vibration , Vibration control

Dynamic Characteristics Analysis of Flexible Rotor System With Pedestal Looseness

Jie Hong, Qiyao Dai, Fayong Wu, Yanhong Ma

GT 2021; V09BT28A008doi:https://doi.org/10.1115/GT2021-60195

Abstract

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Topics: Rotors , Stability , Vibration

Effective Evaluation of Rotordynamic Performance Within Rotor-Bearing System Design Bounds

Zhusan Luo, Carl L. Schwarz

GT 2021; V09BT28A009doi:https://doi.org/10.1115/GT2021-60301

Abstract

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Topics: Bearings , Design , Rotors , Stability

Structures and Dynamics: Structural Mechanics and Vibration

Advanced Processing of a Blade Vibratory Response Obtained With Tip Timing Method Using Hyperparameter-Free Sparse Estimation Method

Vsevolod Kharyton, Dave Zachariah

GT 2021; V09BT29A001doi:https://doi.org/10.1115/GT2021-02411

Abstract

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Topics: Blades , Signals

Technological Choices for Vibratory Robustness of Turbine Bladed Disk

Mathieu Herran, Marc Dijoud, Christophe Colette

GT 2021; V09BT29A002doi:https://doi.org/10.1115/GT2021-04281

Abstract

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Topics: Disks , Robustness , Turbines , Engines , Rotors , Gas turbines , Stress , Blades , Dampers , Disperse systems

Calculation of Nonlinear Systems Under Narrow Band Excitation Using Equivalent Linearization and Path Continuation

Alwin Förster, Lars Panning-von Scheidt

GT 2021; V09BT29A003doi:https://doi.org/10.1115/GT2021-58437

Abstract

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Topics: Excitation , Nonlinear systems , Random excitation , Vibration , Structural analysis , Structural mechanics , Turbine blades , Turbomachinery , White noise

New Modeling Combining Kinematic and Stiffness Nonlinearity in Under Platform Dampers

Ryuichi Umehara, Sotaro Takei, Tomohiro Akaki, Hiroki Kitada

GT 2021; V09BT29A004doi:https://doi.org/10.1115/GT2021-58445

Abstract

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Topics: Dampers , Friction , Kinematics , Modeling , Stiffness , Turbine blades

Simultaneous Optimization of Mistuned Bladed Disks for Forced and Self-Excited Vibration Considering Amount of Unbalance

Yasutomo Kaneko, Toshio Watanabe, Tatsuya Furukawa

GT 2021; V09BT29A005doi:https://doi.org/10.1115/GT2021-58470

Abstract

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Topics: Disks , Optimization , Vibration , Blades , Flutter (Aerodynamics) , Resonance , Stress , Design , Genetic algorithms , Rotor vibration

Effect of Bladed Packets on Transient Vibration Localization Behaviors of Mistuned Whole Bladed Disk System

Xuanen Kan

GT 2021; V09BT29A006doi:https://doi.org/10.1115/GT2021-58722

Abstract

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Topics: Disks , Transients (Dynamics) , Vibration , Blades , Steady state , Turbochargers

Structural Integrity of Serrated Leading Edge Guide Vane Blades for Noise Reduction

Cleopatra Cuciumita, Ning Qin, Felix Stanley, Shahrokh Shahpar

GT 2021; V09BT29A007doi:https://doi.org/10.1115/GT2021-58747

Abstract

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Topics: Blades , Guide vanes , Noise control

On the Performance of Wave-Like Dry Friction and Piezoelectric Hybrid Flexible Dampers

Y. G. Wu, Y. Fan, L. Li, Z. M. Zhao

GT 2021; V09BT29A008doi:https://doi.org/10.1115/GT2021-58817

Abstract

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Topics: Dampers , Dry friction , Waves , Damping , Friction , Piezoelectric materials , Circuits , Actuators , Cantilevers , Finite element model

Surrogate Models for the Prediction of Damping Ratios in Coupled Acoustoelastic Rotor-Cavity Systems

Christoph Rocky Heinrich, Tina Unglaube, Bernd Beirow, Dieter Brillert, Klaus Steff, Nico Petry

GT 2021; V09BT29A009doi:https://doi.org/10.1115/GT2021-58835

Abstract

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Topics: Cavities , Damping , Rotors , Acoustics , Compressors , Impellers , Compressed gases , Disks , Fluid structure interaction , High cycle fatigue

Design and Tests of a New Damper for a Gas Turbine Thin-Shell Duct

Serena Gabriele, Paolo Di Sisto, Giuseppe Del Vescovo, Conti Simone

GT 2021; V09BT29A010doi:https://doi.org/10.1115/GT2021-58919

Abstract

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Topics: Dampers , Design , Ducts , Gas turbines , Thin shells , Flow (Dynamics) , Finite element analysis , High cycle fatigue , Turbines , Bolted joints

Assessment of Geometric Nonlinearities Influence on NASA Rotor 37 Response to Blade Tip/Casing Rubbing Events

Elise Delhez, Florence Nyssen, Jean-Claude Golinval, Alain Batailly

GT 2021; V09BT29A011doi:https://doi.org/10.1115/GT2021-58931

Abstract

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Topics: Blades , NASA , Rotors , Coating processes , Coatings , Compressors , Engines , Stiffness , Wear

Accurate Interpolation of the Dependency of Modal Properties on the Rotation Speed for the Transient Response Analysis of Bladed Disks

Jing Tong, Chaoping Zang, E. P. Petrov

GT 2021; V09BT29A012doi:https://doi.org/10.1115/GT2021-58982

Abstract

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Topics: Disks , Interpolation , Rotation , Transients (Dynamics) , Mode shapes , Vibration , Engines , Finite element analysis , Gas turbines , Modeling

Analysis of Loading and Vibration Histories on Natural Frequencies and Modal Damping of Blades With Friction at Root Contact Interfaces

Junjie Chen, Chaoping Zang, Biao Zhou, E. P. Petrov

GT 2021; V09BT29A013doi:https://doi.org/10.1115/GT2021-58985

Abstract

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Topics: Blades , Damping , Friction , Vibration , Disks , Engines , Flight , Rotation , Stress , Cycles

Rubbing Of a Bladed Disk Considering Coriolis Effect: A Reduced Model Based on Complex Modal Analysis

Dawei Chen, Jiguo Zhang, Jiaguangyi Xiao, Yong Chen

GT 2021; V09BT29A014doi:https://doi.org/10.1115/GT2021-59008

Abstract

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Topics: Coriolis force , Disks , Modal analysis

Optimization of Non-Uniform Sensor Placement for Blade Tip Timing Based on Equiangular Tight Frame Theory

Zhiwei Zhang, Pengfei Chai, Yong Chen, Jie Tian, Hua Ouyang

GT 2021; V09BT29A015doi:https://doi.org/10.1115/GT2021-59104

Abstract

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Topics: Algorithms , Blades , Optimization , Sensor placement

Numerical Methods for Calculating Component Modes for Geometric Mistuning Reduced-Order Models

Joseph A. Beck, Jeffrey M. Brown, Alex A. Kaszynski, Daniel L. Gillaugh

GT 2021; V09BT29A016doi:https://doi.org/10.1115/GT2021-59126

Abstract

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Topics: Eigenvalues , Errors , Finite element model , Geometry , Numerical analysis , Optical scanners , Parallel processing , Rotors , Stiffness , Storage

Investigation on the Robustness of Rotor/Stator Contact Interactions With Respect to Small Mistuning

Florence Nyssen, Alain Batailly

GT 2021; V09BT29A017doi:https://doi.org/10.1115/GT2021-59216

Abstract

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Topics: Robustness , Rotors , Stators , Blades , Degrees of freedom , Disks , Design , Engineering simulation , Engines , Excitation

Development of a Multi-Shaker-Control to Investigate the Influence of the Interblade Phase Angle on Frictionally Damped Turbine Blades

Florian Jäger, Ferhat Kaptan, Lars Panning-Von Scheidt, Jörg Wallaschek

GT 2021; V09BT29A018doi:https://doi.org/10.1115/GT2021-59272

Abstract

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Topics: Blades , Control algorithms , Control systems , Dampers , Damping , Degrees of freedom , Friction , Mode shapes , Stress , Turbine blades

Mistuning and Damping of a Radial Turbine Wheel. Part 1: Fundamental Analyses and Design of Intentional Mistuning Pattern

Alex Nakos, Bernd Beirow, Arthur Zobel

GT 2021; V09BT29A019doi:https://doi.org/10.1115/GT2021-59283

Abstract

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Topics: Blades , Damping , Design , Turbines , Vibration , Wheels

Development of a Harmonic Balance Method-Based Numerical Strategy for Blade-Tip/Casing Interactions: Application to NASA Rotor 37

Yann Colaïtis, Alain Batailly

GT 2021; V09BT29A020doi:https://doi.org/10.1115/GT2021-59298

Abstract

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Topics: Blades , Compressors , NASA , Rotors

Full-Scale Vibration Testing of Nozzle Guide Vanes

Giuseppe Macoretta, Bernardo Disma Monelli, Paolo Neri, Federico Bucciarelli, Damaso Checcacci, Enrico Giusti

GT 2021; V09BT29A021doi:https://doi.org/10.1115/GT2021-59356

Abstract

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Topics: Finite element methods , Friction , Nozzle guide vanes , Testing , Vibration

A Dynamic Systems Based Approach to Estimate Cyclic and Creep Damage of a Power Turbine Blade Subjected to a Random Transient Operation

Dipankar Dua, Quang Le, Anthony Saladino, Deepak Thirumurthy, Jaskirat Singh

GT 2021; V09BT29A022doi:https://doi.org/10.1115/GT2021-59390

Abstract

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Topics: Creep , Damage , Dynamic systems , Transients (Dynamics) , Turbine blades , Engines , Stress , Instrumentation , Turbine components , Turbines

Topological Optimization of Piezoelectric Transducers for Vibration Reduction of Bladed Disks

Y. Fan, H. Y. Ma, Y. G. Wu, L. Li, K. Y. Tian, Z. M. Zhao

GT 2021; V09BT29A023doi:https://doi.org/10.1115/GT2021-59461

Abstract

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Topics: Disks , Optimization , Piezoelectric transducers , Topology , Vibration , Piezoelectric materials , Damping , Stress , Blades , Dampers

Impact of Mistuned Underplatform Dampers on the Nonlinear Vibration of Bladed Disks

Samuel Quaegebeur, Benjamin Chouvion, Fabrice Thouverez

GT 2021; V09BT29A024doi:https://doi.org/10.1115/GT2021-59528

Abstract

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Topics: Dampers , Disks , Nonlinear vibration

Data-Driven Approach for Identifying Mistuning in As-Manufactured Blisks

Sean T. Kelly, Andrea Lupini, Bogdan I. Epureanu

GT 2021; V09BT29A025doi:https://doi.org/10.1115/GT2021-59887

Abstract

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Topics: Artificial neural networks , Blades , Cantilevers , Computational methods , Damping , Density , Disks , Dynamics (Mechanics) , Engines , Excitation

Searching for the Optimal Arrangement of Mistuned Blades Based on Solving the Traveling Salesman Problem for Simple Mass-Spring Linear System

Nikolay Serebriakov, Alexander Selivanov

GT 2021; V09BT29A026doi:https://doi.org/10.1115/GT2021-59927

Abstract

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Topics: Blades , Linear systems , Springs , Disks , Algorithms , Construction , Manufacturing , Optimization , Resonance , Rotation

Design, Optimization and Experimental Verification of a Metal Rubber Isolator for Momentum Wheels

Yanhong Ma, Xiangxin Tang, Jie Hong

GT 2021; V09BT29A027doi:https://doi.org/10.1115/GT2021-59940

Abstract

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Topics: Design , Metals , Momentum , Optimization , Rubber , Vibration isolation , Wheels

Gaussian Stochastic Process Modeling of Blend Repaired Airfoil Modal Response Using Reduced Basis Mode Shape Approach

Jeffrey M. Brown, Alex A. Kaszynski, Daniel L. Gillaugh, Emily B. Carper, Joseph A. Beck

GT 2021; V09BT29A028doi:https://doi.org/10.1115/GT2021-60238

Abstract

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Topics: Airfoils , Mode shapes , Modeling , Stochastic processes , Modal assurance criterion , Maintenance , Displacement , Geometry , Design , Finite element model

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