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Proceedings Papers

Proceedings Volume Cover
ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
June 11–15, 2012
Copenhagen, Denmark
Conference Sponsors:
  • International Gas Turbine Institute
ISBN:
978-0-7918-4473-1
Volume 7: Structures and Dynamics, Parts A and B

Structures and Dynamics

Engineering and Diverse Topics

A Novel Optical Technique for Measuring the Coefficient of Restitution of Microparticle Impacts in a Forced Flowfield
C. J. Reagle, J. M. Delimont, W. F. Ng, S. V. Ekkad, V. P. Rajendran
GT 2012; 1-9https://doi.org/10.1115/GT2012-68252
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Topics: Microparticles , Particulate matter , Sands , Temperature , Dust , Engines , Erosion , Gas turbines , Glass beads , Numerical analysis
Design Study of Dovetail Geometries of Turbine Blades Using Abaqus and Isight
Youngwon Hahn, John I. Cofer, IV
GT 2012; 11-20https://doi.org/10.1115/GT2012-68566
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Topics: Design , Turbine blades , Optimization , Blades , Computer-aided engineering , Dimensions , Stress , Approximation , Engineers , Finite element model
Aerodynamic and Mechanical Optimization of CF/PEEK Blades of a Counter Rotating Fan
Daniel Goerke, Anne-Laure Le Denmat, Thomas Schmidt, Frank Kocian, Eberhard Nicke
GT 2012; 21-33https://doi.org/10.1115/GT2012-68797
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Topics: Blades , Optimization , Design , Rotors , Bearings , Carbon fibers , Carbon reinforced plastics , Clevises , Compressors , Degrees of freedom
Numerical Simulation of Spin Testing for Turbo Machine Disks Using Energy-Based Fracture Criteria
Yu. A. Nozhnitsky, K. D. Karimbaev, A. N. Servetnik
GT 2012; 35-40https://doi.org/10.1115/GT2012-68953
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Topics: Computer simulation , Disks , Fracture (Materials) , Fracture (Process) , Machinery , Particle spin , Rotation , Spin (Aerodynamics) , Testing , Turbochargers
Jet Engine Design Optimization Using a Knowledge-Based Master Model
Ilya Tyapin, Marcus Sandberg, Michael Kokkolaras, Anders Lundbladh, Ola Isaksson
GT 2012; 41-47https://doi.org/10.1115/GT2012-69309
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Topics: Design , Jet engines , Optimization , Blades , Composite materials , Deformation , Dynamic response , Fuel consumption , Modeling , Pressure
Cast-in-Pair Blade Release Simulation and Comparison to Experiments With a Full Scale Rig
Erlantz Cristóbal, Sergio Moñux, Carlos Cerezo, David Cendón, Francisco Galvez, Borja Erice
GT 2012; 49-56https://doi.org/10.1115/GT2012-69715
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Topics: Blades , Simulation , Airfoils , Design , Containment , Damage , Engines , Failure , Pressure , Temperature
Turbine Pocket Blade: Structural Integrity and Tip Leakage Flow
Loc Q. Duong, Nagamany Thayalakhandan
GT 2012; 57-65https://doi.org/10.1115/GT2012-69731
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Topics: Blades , Leakage flows , Turbines , Aerodynamics , Design , Optimization , Combustion chambers , Computational fluid dynamics , Creep , Engineering disciplines
Numerical Modeling of Fluid-Induced Rotordynamic Forces in Seals With Large Aspect Ratio
Alexandrina Untaroiu, Costin D. Untaroiu, Houston G. Wood, Paul E. Allaire
GT 2012; 67-75https://doi.org/10.1115/GT2012-69830
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Topics: Computer simulation , Fluids , Flow (Dynamics) , Computational fluid dynamics , Stiffness , Damping , Finite difference methods , Geometry , Rotors , Friction

Fatigue, Fracture and Life Prediction

Life Calculation of First Stage Compressor Blade of a Trainer Aircraft
J. S. Rao, Narayan Rangarajan, Rejin Ratnakar, R. Rzadkowski, M. Soliński, I. Vorobiev
GT 2012; 77-84https://doi.org/10.1115/GT2012-68070
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Topics: Aircraft , Blades , Compressors , Damping , Air Force , Computational fluid dynamics , Damage , Engines , Flow (Dynamics) , Pressure
Determination of Thermal Barrier Coatings Average Surface Temperature After Engine Operation for Lifetime Validation
Grégoire Witz, Hans-Peter Bossmann
GT 2012; 85-92https://doi.org/10.1115/GT2012-68122
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Topics: Engines , Temperature , Thermal barrier coatings , Coatings , Base metals , Combustion chambers , Energy generation , Fuels , Performance , Stress
Evolution of Thermal Barrier Coating Strain Tolerance During Engine Operation and its Application to Lifing Models
Markus Schaudinn, Grégoire Witz, Hans-Peter Bossmann
GT 2012; 93-98https://doi.org/10.1115/GT2012-68123
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Topics: Engines , Thermal barrier coatings , Combustion chambers , Ceramics , Mechanical properties , Temperature , Coating processes , Coatings , Crack propagation , Delamination
CTOD Application to Elastic-Plastic Fracture Mechanics Using Cyclic Ramberg-Osgood Law and HRR Solution
Piotr Bednarz, Ilya Fedorov, Jaroslaw Szwedowicz
GT 2012; 99-107https://doi.org/10.1115/GT2012-68161
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Topics: Fracture mechanics , Fracture (Materials) , Deformation , Displacement , Plasticity , Accounting , Compression , Crack propagation , Modeling , Simulation
Crack Propagation Prediction Using Haensel Damage Model
Piotr Bednarz, Jaroslaw Szwedowicz
GT 2012; 109-117https://doi.org/10.1115/GT2012-68162
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Topics: Crack propagation , Damage , Fracture (Materials) , Stress , Tension , Cycles , Engineering simulation , Finite element analysis , Fracture mechanics , Modeling
Advancement of Experimental Methods and Cailletaud Material Model for Life Prediction of Gas Turbine Blades Exposed to Combined Cycle Fatigue
Marcus Thiele, Swen Weser, Uwe Gampe, Roland Parchem, Samuel Forest
GT 2012; 119-130https://doi.org/10.1115/GT2012-68452
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Topics: Blades , Combined cycles , Experimental methods , Fatigue , Gas turbines , Crystals , High cycle fatigue , Design , Hardening , Kinematics
Fatigue and Crack Growth in 7050-T7451 Aluminum Alloy Under Constant- and Variable-Amplitude Loading
James C. Newman, Jr., Justin W. Shaw, Balkrishna S. Annigeri, Brett M. Ziegler
GT 2012; 131-141https://doi.org/10.1115/GT2012-68502
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Topics: Aluminum alloys , Fatigue , Fatigue cracks , Fracture (Materials) , Plasticity , Surface roughness
Thermo-Mechanical Fatigue Experiments of Single Crystal Hollow Turbine Blades
Fulei Jing, Rongqiao Wang, Dianyin Hu
GT 2012; 143-147https://doi.org/10.1115/GT2012-68523
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Topics: Crystals , Fatigue , Thermomechanics , Turbine blades
Experimental Validation of Fretting Fatigue Strength and Fretting Wear Rate at Contact Surface of Turbine-Blade-Shroud Cover
Kunio Asai, Takeshi Kudo, Hideo Yoda
GT 2012; 149-156https://doi.org/10.1115/GT2012-68576
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Topics: Blades , Fatigue strength , Turbines , Wear , Friction , Pressure , Stress , Cycles , Fatigue , Adhesion
Practical Aspects of Fatigue Crack Growth in Aero-GTE Applications
Youri N. Lenets
GT 2012; 157-165https://doi.org/10.1115/GT2012-68736
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Topics: Fatigue cracks , Engines , Damage , Fracture (Materials) , Accidents , Aviation , Compression , Cracking (Materials) , Engine design , Failure
Development of Life Prediction Method of Turbine Blade Using the Theory of Critical Distance
Tetsuya Nakahara, Yusuke Ueda, Hiroshi Nakamura
GT 2012; 167-173https://doi.org/10.1115/GT2012-68742
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Topics: Turbine blades , Finite element analysis , Stress , Blades , Crystals , Fatigue testing , Nickel , Turbines , Alloys , Disks
A Superposition Approach for Time-Dependent Fatigue Crack Growth
Fashang Ma
GT 2012; 175-185https://doi.org/10.1115/GT2012-68780
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Topics: Fatigue cracks , Fracture (Materials) , Stress , Creep , Damage , Fatigue , Fracture mechanics , Geometry , High temperature , Modeling
Development of a Generalized LCF-TMF Lifing Model for a Nickel-Base Superalloy
Björn Buchholz, Uwe Gampe, Tilmann Beck
GT 2012; 187-196https://doi.org/10.1115/GT2012-68786
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Topics: Fatigue , Nickel , Superalloys
Application of a Smooth Approximation of the Schmid’s Law to a Single Crystal Gas Turbine Blade: Part 1—Theory and Governing Equations
Alessandro D. Ramaglia
GT 2012; 197-206https://doi.org/10.1115/GT2012-68848
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Topics: Approximation , Blades , Crystals , Gas turbines , Anisotropy , Plasticity , Alloys , Constitutive equations , Creep , Deformation
An Energy-Based Axial Isothermal-Mechanical Fatigue Lifing Method
John Wertz, Todd Letcher, M.-H. Herman Shen, Onome Scott-Emuakpor, Tommy George, Charles Cross
GT 2012; 207-214https://doi.org/10.1115/GT2012-68889
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Topics: Fatigue , Temperature , Testing , Materials properties , Operating temperature
A Robust Optimization Technique for Calculating Scaling Coefficients in an Energy-Based Fatigue Life Prediction Method
Todd Letcher, John Wertz, M.-H. Herman Shen
GT 2012; 215-223https://doi.org/10.1115/GT2012-68905
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Topics: Fatigue life , Optimization , Accounting , Fracture (Materials) , Fracture (Process) , Stress , Density , Design , Fatigue , Probability
Strain Rate and Loading Waveform Effects on an Energy-Based Fatigue Life Prediction for AL6061-T6
Todd Letcher, M.-H. Herman Shen, Onome Scott-Emuakpor, Tommy George, Charles Cross
GT 2012; 225-233https://doi.org/10.1115/GT2012-68911
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Topics: Fatigue life , Waves , Cycles , Fatigue , Stress , Tension , Testing
Damage Parameter Assessment for Energy Based Fatigue Life Prediction Methods
Casey M. Holycross, John N. Wertz, Todd Letcher, M.-H. Herman Shen, Onome E. Scott-Emuakpor, Tommy J. George
GT 2012; 235-240https://doi.org/10.1115/GT2012-68919
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Topics: Damage , Fatigue life , Fracture (Materials) , Fracture (Process) , Energy dissipation , Brittle fracture , Failure data , Failure mechanisms , Fatigue , Low cycle fatigue
Effect of Non-Proportional Loading on Fatigue Crack Initiation and Growth Behavior of Maraging Steel
Hiroshi Nakamura, Masahiro Takanashi, Tatsuya Masaki, Shengde Zhang, Masao Sakane
GT 2012; 241-248https://doi.org/10.1115/GT2012-68931
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Topics: Fatigue cracks , Steel , Fracture (Materials) , Shear (Mechanics) , Crack propagation , Electromagnetic scattering , Fatigue , Fatigue life , Fatigue testing , Finite element analysis
A New Model to Describe Yield Surface Distortion Based on the Baltov and Sawczuk’s Model
A. Nayebi, H. Rokhgireh
GT 2012; 249-254https://doi.org/10.1115/GT2012-68952
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Topics: Hardening , Kinematics , Shapes , Tension , Torsion
The Effect of Compressive Damage on Tensile Loading Failure of Titanium 6Al-4V
Onome Scott-Emuakpor, Tommy George, John Wertz, Casey Holycross
GT 2012; 255-261https://doi.org/10.1115/GT2012-69079
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Topics: Damage , Failure , Titanium , Fracture (Materials) , Fracture (Process) , Cycles , Compression , Data acquisition , Fatigue , Tension
New Methods for Automated Fatigue Crack Growth and Reliability Analysis
R. Craig McClung, Yi-Der Lee, Michael P. Enright, Wuwei Liang
GT 2012; 263-271https://doi.org/10.1115/GT2012-69121
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Topics: Event history analysis , Fatigue cracks , Fracture (Materials) , Stress , Geometry , Algorithms , Dimensions , Probability , Reliability , Cross section (Physics)
A Model to Predict the Stress Corrosion Cracking Growth Rate of the Metallic Materials
Guang Chen Jiao, Gang Chen, Wei Zhe Wang
GT 2012; 273-275https://doi.org/10.1115/GT2012-69134
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Topics: Stress corrosion cracking , Crack propagation , Corrosion , Simulation , Uncertainty
Multiaxial Creep-Fatigue Life Prediction on the Rotor of a 1000MW Supercritical Steam Turbine
Jianfeng Mao, Weizhe Wang, Yingzheng Liu, Junhui Zhang
GT 2012; 277-283https://doi.org/10.1115/GT2012-69135
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Topics: Creep , Fatigue , Rotors , Steam turbines , Damage , High temperature , Damage mechanics , Stress
Life Prediction Feasibility in TMF via Stress/Strain Data From a Viscoplasticity-Based Numerical Model
Justin Karl, Ali P. Gordon
GT 2012; 285-291https://doi.org/10.1115/GT2012-69138
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Topics: Computer simulation , Stress , Viscoplasticity , Computer software , Cycles , Finite element analysis , Airfoils , Blades , Errors , Gas turbines
Fatigue Life Estimation Method Considering Inelastic Behavior of Ni-Based Directionally Solidified Superalloy With Multiple Holes
Takashi Yokoyama, Masaru Sekihara
GT 2012; 293-300https://doi.org/10.1115/GT2012-69181
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Topics: Fatigue life , Superalloys , Cycles , Fracture (Materials) , Anisotropy , Low cycle fatigue , Cooling , Creep , Failure , Fatigue
Analytical Correction of Nonlinear Thermal Stresses Under Thermo-Mechanical Cyclic Loadings
Sarendra Gehlot, Pradeep Mahadevan, Ragupathy Kannusamy
GT 2012; 301-309https://doi.org/10.1115/GT2012-69287
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Topics: Thermal stresses , Thermomechanics , Stress , Temperature , Analytical methods , Cycles , Finite element analysis , Computer software , Design , Elastic moduli
Analytical Prediction of Fatigue Crack Growth Behavior Under Biaxial Loadings
Ragupathy Kannusamy, K. Ramesh
GT 2012; 311-321https://doi.org/10.1115/GT2012-69480
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Topics: Fatigue cracks , Stress , Fracture (Materials) , Shapes , Aircraft , Alloys , Aluminum alloys , Finite element analysis , Pressure vessels , Steel
Models for Small Crack Growth in LCF at Room Temperature and High Temperature
Stefano Beretta, Stefano Foletti, Silvio Rabbolini, Luca E. Bordo, Andrea Sanguineti, Laura Traversone
GT 2012; 323-330https://doi.org/10.1115/GT2012-69730
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Topics: Fracture (Materials) , High temperature , Temperature , Stress , Crack propagation , Cycles , Deformation , Design , Fatigue cracks , Fatigue testing
Life Prediction for Turbopropulsion Systems Under Dwell Fatigue Conditions
Kwai S. Chan, Michael P. Enright, Jonathan P. Moody, Benjamin Hocking, Simeon H. K. Fitch
GT 2012; 331-339https://doi.org/10.1115/GT2012-69742
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Topics: Computer software , Cycles , Damage , Design , Fatigue , Fracture (Materials) , Reliability , Risk , Risk analysis , Rotors
Design Modification of a Heavy Duty Industrial Gas Turbine Blade for Life Improvement
Chris Hutchison, Anthony Chan, Dan Stankiewicz
GT 2012; 341-347https://doi.org/10.1115/GT2012-69963
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Topics: Design , Industrial gases , Turbine blades , Stress , Airfoils , Blades , Cooling , Cracking (Materials) , Fracture (Materials) , Fracture (Process)
Assessment of Fatigue Sensitivity to Defects of a TiAl Alloy Produced by Electron Beam Melting (EBM)
Mauro Filippini, Stefano Beretta, Luca Patriarca, Giuseppe Pasquero, Silvia Sabbadini
GT 2012; 349-354https://doi.org/10.1115/GT2012-69986
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Topics: Alloys , Cathode ray oscilloscopes , Electron beams , Fatigue , Melting , Titanium aluminide , Electrical discharge machining , Cycles , Fatigue testing , Fracture (Materials)
Fatigue Strength and Metal Condition in the Context of Gas Turbine Buckets Life Extension
Sergey A. Ivanov, Alexander I. Rybnikov
GT 2012; 355-362https://doi.org/10.1115/GT2012-70121
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Topics: Fatigue strength , Gas turbines , Life extension , Metals , Fatigue , Damage , High cycle fatigue , Service life (Equipment) , Airfoils , Alloys
Vibration Investigation for Low Pressure Turbine Last Stage Blade Failure in Steam Turbines of a Power Plant
Jyoti K. Sinha, W. Hahn, K. Elbhbah, G. Tasker, I. Ullah
GT 2012; 363-371https://doi.org/10.1115/GT2012-70129
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Topics: Blades , Failure , Power stations , Pressure , Steam turbines , Turbines , Vibration , Dynamics (Mechanics) , Rotors , Steam

Probabilistic Methods

A Parametric Impact Study of the Geometry, Air System and Thermal Boundary Conditions on the Life of a Two-Stage High Pressure Turbine
Thomas Weiss, Jose Maria Rey Villazón, Arnold Kühhorn
GT 2012; 373-382https://doi.org/10.1115/GT2012-68453
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Topics: Boundary-value problems , Geometry , High pressure (Physics) , Turbines , Disks , Design , Aircraft engines , Electromagnetic scattering , Failure , Manufacturing
Stochastic Integration Methods: Comparison and Application to Reliability Analysis
M. Paffrath, U. Wever
GT 2012; 383-396https://doi.org/10.1115/GT2012-68973
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Topics: Computation , Crude oil , Event history analysis , Failure , Fracture (Materials) , Probability
Review of Probabilistic Damage Tolerance Methodology for Hard Alpha Anomalies
R. S. J. Corran, M. Gorelik, D. Chawla, S. Mosset, M. B. Joinson, D. Harmon, D. Nissley, A. J. Murphy, J. Stillinger, K. W. Jacques
GT 2012; 397-406https://doi.org/10.1115/GT2012-68987
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Topics: Damage , Disks , Engines , Gas turbines , Inspection , Titanium , Titanium alloys
Improving High-Dimensional Physics Models Through Bayesian Calibration With Uncertain Data
Natarajan Chennimalai Kumar, Arun K. Subramaniyan, Liping Wang
GT 2012; 407-416https://doi.org/10.1115/GT2012-69058
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Topics: Calibration , Physics
Impact of Manufacturing Variability on Multi–Stage High–Pressure Compressor Performance
Alexander Lange, Matthias Voigt, Konrad Vogeler, Henner Schrapp, Erik Johann, Volker Gümmer
GT 2012; 417-426https://doi.org/10.1115/GT2012-69571
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Topics: Compressors , High pressure (Physics) , Manufacturing , Blades , Electromagnetic scattering , Pressure , Rotors , Computational fluid dynamics , Computer simulation , Density
FE-Mesh Effect of the Volume Based Weakest-Link Fatigue Probability Applied to a Compressor Blade
Salar Sadek, Daniel Sandberg, Mårten Olsson
GT 2012; 427-438https://doi.org/10.1115/GT2012-69852
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Topics: Blades , Compressors , Fatigue , Probability , High cycle fatigue , Stress , Computation , Design , Electromagnetic scattering , Failure
Influence of Mission Variability on Fracture Risk of Gas Turbine Engine Components
Michael P. Enright, Jonathan P. Moody, Ramesh Chandra, Alan C. Pentz
GT 2012; 439-446https://doi.org/10.1115/GT2012-69960
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Topics: Fracture (Materials) , Fracture (Process) , Gas turbines , Risk , Stress , Flight , Damage , Disks , Engines , Failure data
A Tool for Probabilistic Damage Tolerance of Hole Features in Turbine Engine Rotors
Michael P. Enright, R. Craig McClung, Wuwei Liang, Yi-Der Lee, Jonathan P. Moody, Simeon Fitch
GT 2012; 447-458https://doi.org/10.1115/GT2012-69968
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Topics: Damage , Gas turbines , Rotors , Fracture (Materials) , Inspection , Probability , Stress , Disks , Finite element model , Fracture (Process)
Model Verification and Validation Concepts for a Probabilistic Fracture Assessment Model to Predict Cracking of Knife Edge Seals in the Space Shuttle Main Engine High Pressure Oxidizer
Shantaram S. Pai, David S. Riha
GT 2012; 459-468https://doi.org/10.1115/GT2012-70132
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Topics: Engines , Fracture (Process) , High pressure (Physics) , Space vehicles , Flutter (Aerodynamics) , Fracture (Materials) , Design , Failure , Flight , Probability
Probabilistic Analysis of Turbine Blade Tolerancing and Tip Shroud Gap
P. Jafarali, Dmitry Krikunov, Amir Mujezinović, Nicholas A. Tisenchek
GT 2012; 469-476https://doi.org/10.1115/GT2012-70138
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Topics: Blades , Design , Manufacturing , Optimization , Reliability , Steam turbines , Turbine blades

Rotordynamics

Bispectrum: A Tool for Distinguishing Different Faults in Rotating Machine
Keri Elbhbah, Jyoti K. Sinha
GT 2012; 477-483https://doi.org/10.1115/GT2012-68010
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Topics: Condition monitoring , Machinery
On Two-Plane Balancing of Symmetric Rotors
John J. Yu
GT 2012; 485-495https://doi.org/10.1115/GT2012-68061
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Topics: Rotors , Weight (Mass) , Vibration , Downtime , Energy generation , Flow (Dynamics) , Generators , Pressure , Rotor balancing , Turbines
Effect of Cooling Flow on the Operation of a Hot Rotor-Gas Foil Bearing System
Keun Ryu, Luis San Andrés
GT 2012; 497-509https://doi.org/10.1115/GT2012-68074
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Topics: Cooling , Flow (Dynamics) , Foil bearings , Rotors , Bearings , Temperature , Thermal management , Damping , Dynamics (Mechanics) , High temperature
Effects of Bending Moments and Pre-Tightening Forces on the Flexural Stiffness of Contact Interfaces in Rod-Fastened Rotors
Jin Gao, Qi Yuan, Pu Li, Hongtao Zhang, Zhiqiang Lv
GT 2012; 511-519https://doi.org/10.1115/GT2012-68221
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Topics: Rotors , Stiffness , Disks , Finite element methods , Springs , Tie rods , Hinges , Load bearing capacity
Rotor Dynamics of Overhung Rotors: Hysteretic Dynamic Behavior
Manuel A. Marin
GT 2012; 521-529https://doi.org/10.1115/GT2012-68285
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Topics: Rotordynamics , Rotors , Bearings , Pipelines , Journal bearings , Machinery , Turbines , Vibration , Arches , Compressors
Multistage Coupling of Eight Mistuned Bladed Disk on a Solid Shaft: Part 1—Free Vibration Analysis
Romuald Rzadkowski, Artur Maurin
GT 2012; 531-540https://doi.org/10.1115/GT2012-68391
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Topics: Disks , Free vibrations , Blades , Rotors , Dynamics (Mechanics) , Finite element analysis , Mode shapes , Resonance
Nonlinear Dynamic Effect of Thrust Bearing on a Flexible Rotor Bearing System
Heng Liu, Yi Liu, Xuebin Song, Jun Yi, Minqing Jing, Weimin Wang, Shiquan Zhao, Xiaobing Qi
GT 2012; 541-550https://doi.org/10.1115/GT2012-68487
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Topics: Bearings , Rotors , Thrust bearings , Stability , Bifurcation , Finite element methods , Resonance
Rotordynamic Characteristics of a Flexure Pivot Pad Bearing With an Active and Locked Integral Squeeze Film Damper
Jeff Agnew, Dara Childs
GT 2012; 551-561https://doi.org/10.1115/GT2012-68564
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Topics: Bearings , Bending (Stress) , Dampers , Stiffness , Damping , Rotors , Dynamic testing (Engineering) , Dynamic testing (Materials) , Journal bearings , Stability
One Explanation for 2N Response due to Misalignment in Rotors Connected by Flexible Couplings
Raul D. Avendano, Dara W. Childs
GT 2012; 563-573https://doi.org/10.1115/GT2012-68565
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Topics: Couplings , Rotors , Stress , Stiffness , Bearings , Gravity (Force) , Disks , Finite element model , Journal bearings , Poles (Building)
Rotor Model Updating and Validation for an Active Magnetic Bearing Based High-Speed Machining Spindle
Adam C. Wroblewski, Jerzy T. Sawicki, Alexander H. Pesch
GT 2012; 575-582https://doi.org/10.1115/GT2012-68661
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Topics: Machining , Magnetic bearings , Rotors , Antiresonance , Errors , Modeling , Transfer functions , Control equipment , Cutting tools , Finite element analysis
Controlled Deflection Approach for Rotor Crack Detection
Zbigniew Kulesza, Jerzy T. Sawicki
GT 2012; 583-592https://doi.org/10.1115/GT2012-68960
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Topics: Crack detection , Deflection , Rotors , Fracture (Materials) , Vibration , Machinery , Modeling , Computer simulation , Creep , Damping
Dynamic Response Analysis of Rotor System With Uncertain Parameters via Interval Analysis Method
Jie Hong, Jun Wang, Meng Chen, Yanhong Ma
GT 2012; 593-600https://doi.org/10.1115/GT2012-69007
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Topics: Dynamic response analysis , Rotors , Dynamic response , Cycles , Stiffness , Blades , Manufacturing , Mathematics , Monte Carlo methods , Probability
Differentiating Benign and Unstable Vibrations in Integral Geared Centrifugal Compressors
Anand Srinivasan
GT 2012; 601-606https://doi.org/10.1115/GT2012-69071
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Topics: Compressors , Vibration , Rotors , Bearings , Design , Spectra (Spectroscopy) , Turbomachinery , Engineering design processes , Machinery , Rotordynamics
The Limited-Torque Acceleration Through Critical Speed Phenomenon in Rotating Machinery
Anand Srinivasan, Trent W. Thurston
GT 2012; 607-613https://doi.org/10.1115/GT2012-69073
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Topics: Machinery , Torque , Turbomachinery , Rotors , Vibration , Trains , Transients (Dynamics) , Bearings , Damage , Design
Experimental Testing of a Magnetically Levitated Rotor With a Neural Network Controller
Alejandro Veloz, Juan C. Romero Quintini, Mónica Parada, Sergio E. Diaz
GT 2012; 615-624https://doi.org/10.1115/GT2012-69120
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Topics: Artificial neural networks , Control equipment , Rotors , Testing , Magnetic bearings , Vibration , Actuators , Architecture , Bearings , Computer simulation
Investigations on the Rotordynamic Coefficients of Pocket Damper Seals Using the Multi-Frequency, One-Dimensional, Whirling Orbit Model and RANS Solutions
Jun Li, Zhigang Li, Zhenping Feng
GT 2012; 625-636https://doi.org/10.1115/GT2012-69296
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Topics: Dampers , Reynolds-averaged Navier–Stokes equations , Whirls , Rotors , Signals , Computation , Oscillating frequencies , Deformation , Excitation , Fast Fourier transforms
Full-Size Rotordynamic Test Rig for Magnetic and Auxiliary Bearing Testing and Initial Results
Oscar De Santiago, Víctor Solórzano, Sergio Díaz
GT 2012; 637-646https://doi.org/10.1115/GT2012-69338
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Topics: Bearings , Testing , Rotors , Magnetic bearings , Design , Clearances (Engineering) , Compressors , Damage , Electric motors , Failure
Use and Limitations of the Harmonic Balance Method for Rub-Impact Phenomena in Rotor-Stator Dynamics
Loïc Peletan, Sebastien Baguet, Georges Jacquet-Richardet, Mohamed Torkhani
GT 2012; 647-655https://doi.org/10.1115/GT2012-69450
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Topics: Dynamics (Mechanics) , Rotors , Stators , Algorithms , Engineering simulation , Simulation , Transients (Dynamics) , Contact mechanics , Steady state , Whirls
Dynamic Effects Caused by the Non-Linear Behavior of Oil-Film Journal Bearings in Rotating Machines
A. Vania, P. Pennacchi, S. Chatterton
GT 2012; 657-664https://doi.org/10.1115/GT2012-69457
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Topics: Journal bearings , Machinery , Vibration , Resonance , Trains
The Effects of Bearing Stiffness on Nonlinear Dynamic Behaviors of Multi-Mesh Gear Train
T. N. Shiau, T. H. Young, J. R. Chang, K. H. Huang, C. R. Wang
GT 2012; 665-674https://doi.org/10.1115/GT2012-69490
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Topics: Bearings , Bifurcation , Gear trains , Stiffness
Prediction of Clearance in Industrial Gas Turbine Validated by Field Operation Data
Luca Bordo, Silvia Bruzzone, Andrea Perrone, Laura Traversone
GT 2012; 675-683https://doi.org/10.1115/GT2012-69617
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Topics: Clearances (Engineering) , Industrial gases , Turbines , Rotors , Blades , Finite element model , Transients (Dynamics) , Disks , Engines , Gas turbines
Constrained Optimization of a Rotor-Bearing System Based on an Evolutionary Algorithm
Donghua Wang, Wanyou Li, Zhigang Liu, Zhansheng Liu
GT 2012; 685-691https://doi.org/10.1115/GT2012-69798
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Topics: Bearings , Evolutionary algorithms , Optimization , Rotors , Design , Rotordynamics , Safety
Crack Detection in Shaft Using Lateral and Torsional Vibration Measurements and Analyses
A. Tlaisi, A. Akinturk, A. S. J. Swamidas, M. R. Haddara
GT 2012; 693-702https://doi.org/10.1115/GT2012-69921
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Topics: Accelerometers , Computer software , Crack detection , Finite element methods , Finite element model , Fracture (Materials) , Gages , Mesh generation , Modal analysis , Propellers
Rotor Model Validation for an Active Magnetic Bearing Machining Spindle Using mu-Synthesis Approach
Ryan J. Madden, Jerzy T. Sawicki
GT 2012; 703-709https://doi.org/10.1115/GT2012-69943
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Topics: Machining , Magnetic bearings , Model validation , Rotors , Dynamics (Mechanics) , Control equipment , Engineering models , Levitation
Rotordynamics of a 2-Phase Flow Twin Screw Pump
Ameen R. A. Muhammed, Dara W. Childs
GT 2012; 711-720https://doi.org/10.1115/GT2012-69965
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Topics: Flow (Dynamics) , Pumps , Rotordynamics , Screws , Pressure , Rotors , Steady state , Cavities , Displacement , Fluids
Stiffening Effect of Motor Core Webs for Torsional Rotordynamics
Chris D. Kulhanek, Stephen M. James, Justin R. Hollingsworth
GT 2012; 721-729https://doi.org/10.1115/GT2012-69967
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Topics: Engines , Motors , Rotordynamics , Finite element analysis , Stiffness , American Petroleum Institute , Torsion , Air flow , Analytical methods , Computational methods
Identification of Bearing Stiffness and Damping Coefficients Using Phase-Plane Diagrams
Juan C. Jáuregui, Luis San Andrés, Oscar De Santiago
GT 2012; 731-737https://doi.org/10.1115/GT2012-69980
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Topics: Bearings , Dampers , Damping , Flaw detection , Gas bearings , Nonlinear systems , Phase diagrams , Springs , Stiffness , Universe
Detection of Unsteady Flow in a Kaplan Hydraulic Turbine Using Machine Mechanical Model and Rotor Measured Vibrations
Paolo Pennacchi, Andrea Vania, Steven Chatterton, Ezio Tanzi
GT 2012; 739-748https://doi.org/10.1115/GT2012-69995
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Topics: Hydraulic turbines , Machinery , Rotors , Unsteady flow , Vibration , Turbines , Design , Flow (Dynamics) , Vortices , Bubbles

Bearing and Seal Dynamics

Development and Validation of a Three-Dimensional Multiphase Flow CFD Analysis for Journal Bearings in Steam and Heavy Duty Gas Turbines
Stephan Uhkoetter, Stefan aus der Wiesche, Michael Kursch, Christian Beck
GT 2012; 749-758https://doi.org/10.1115/GT2012-68201
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Topics: Computational fluid dynamics , Gas turbines , Journal bearings , Multiphase flow , Steam , Cavitation , Bearings , Air entrainment , Engineering simulation , Flow (Dynamics)
Static and Rotordynamic Characteristics for a New Hole-Pattern Annular Gas Seal Design Incorporating Larger Diameter Holes
Michael Vannarsdall, Dara W. Childs
GT 2012; 759-767https://doi.org/10.1115/GT2012-68208
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Topics: Damping , Design , Manufacturing , Stability , Stiffness
Damping and Inertia Coefficients for Two Open Ends Squeeze Film Dampers With a Central Groove: Measurements and Predictions
Luis San Andrés
GT 2012; 769-778https://doi.org/10.1115/GT2012-68212
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Topics: Dampers , Damping , Inertia (Mechanics) , Whirls , Flow (Dynamics) , Lubricants , Orifices , Rotors , Stress , Aircraft engines
Theoretical and Experimental Investigation of Force Estimation Errors Using Active Magnetic Bearings With Embedded Hall Sensors
Andreas Jauernik Voigt, Ilmar F. Santos
GT 2012; 779-793https://doi.org/10.1115/GT2012-68282
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Topics: Errors , Magnetic bearings , Sensors , Poles (Building) , Rotors , Calibration , Currents , Dynamic testing (Engineering) , Dynamic testing (Materials) , Finite element analysis
A CFD Study on the Dynamic Coefficients of Labyrinth Seals
Donghui Zhang, Chester Lee, Michael Cave
GT 2012; 795-803https://doi.org/10.1115/GT2012-68292
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Topics: Computational fluid dynamics , Cavities , Leakage flows , Pressure , Stiffness , Compressors , Impellers , Damping , Flow (Dynamics) , Gas compressors
On the Nonlinear Dynamics of Two Types of Backup Bearings: Theoretical and Experimental Aspects
Said Lahriri, Ilmar F. Santos, Hans I. Weber, Henning Hartmann
GT 2012; 805-821https://doi.org/10.1115/GT2012-68319
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Topics: Bearings , Nonlinear dynamics , Rotors , Particle spin , Rotation , Spin (Aerodynamics) , Friction , Stators , Vibration , Disks
On the Simplifications for the Thermal Modeling of Tilting-Pad Journal Bearings Under Thermoelastohydrodynamic Regime
Alejandro Cerda Varela, Michel Fillon, Ilmar Ferreira Santos
GT 2012; 823-835https://doi.org/10.1115/GT2012-68329
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Topics: Journal bearings , Modeling , Heat transfer , Bearings , Temperature , Flow (Dynamics) , Heat conduction , Lubrication , Reynolds number , Temperature gradient
CFD-Predicted Rotordynamic Coefficients for a 20-Teeth-on-Stator Labyrinth Seal at High Supply Pressure Conditions
Alexander O. Pugachev, Heiko Degen
GT 2012; 837-847https://doi.org/10.1115/GT2012-68381
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Topics: Computational fluid dynamics , Pressure , Stators , Stiffness , Damping , Leakage , Clearances (Engineering) , Engineering simulation , Gas turbines , Goodness-of-fit tests
Steady-State Control of Hybrid Foil-Magnetic Bearings
Ye Tian, Yanhua Sun, Lie Yu
GT 2012; 849-857https://doi.org/10.1115/GT2012-68394
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Topics: Bearings , Steady state , Control equipment , Magnetic bearings , Stress , Algorithms , Foil bearings , Control algorithms , Design , Dynamics (Mechanics)
A Metal Mesh Foil Bearing and a Bump-Type Foil Bearing: Comparison of Performance for Two Similar Size Gas Bearings
Luis San Andrés, Thomas Abraham Chirathadam
GT 2012; 859-869https://doi.org/10.1115/GT2012-68437
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Topics: Foil bearings , Gas bearings , Metals , Bearings , Drag (Fluid dynamics) , Rotors , Damping , Friction , Stiffness , Stress
Combination Axial and Radial Active Magnetic Bearing With Improved Axial Bandwidth
Alexei V. Filatov, Lawrence A. Hawkins
GT 2012; 871-877https://doi.org/10.1115/GT2012-68645
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Topics: Electromagnetic actuators , Magnetic bearings
Numerical Investigation of the Flow in a Hydrodynamic Thrust Bearing With Floating Disk
Magnus Fischer, Andreas Mueller, Benjamin Rembold, Bruno Ammann
GT 2012; 879-890https://doi.org/10.1115/GT2012-68700
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Topics: Disks , Flow (Dynamics) , Thrust bearings , Temperature , Thrust , Turbochargers , Bearings , Film thickness , Viscosity , Computer simulation
Reducing Energy Consumption in Active Magnetic Bearings by a Nonlinear Variable Bias Controller
Satoshi Ueno, M. Necip Sahinkaya
GT 2012; 891-899https://doi.org/10.1115/GT2012-68741
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Topics: Control equipment , Energy conservation , Magnetic bearings , Bearings , Errors , Currents , Displacement , Dynamics (Mechanics) , Energy consumption , Rotordynamics
Experimental Investigations of Active Air Bearings
Stefano Morosi, Ilmar F. Santos
GT 2012; 901-910https://doi.org/10.1115/GT2012-68766
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Topics: Air bearings , Bearings , Bending (Stress) , Computer software , Control equipment , Control systems , Damping , Design , Engineering prototypes , Foil bearings
A View to the Energy Dissipation Mechanism of a Gas Foil Bearing’s Structure due to Dry Friction
José A. Matute, Rafael O. Ruiz, Sergio E. Diaz
GT 2012; 911-920https://doi.org/10.1115/GT2012-68926
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Topics: Dry friction , Energy dissipation , Damping , Stick-slip , Stiffness , Computer software , Curve fitting , Deformation , Excitation , Foil bearings
Comparison Between Numerical and Experimental Dynamic Coefficients of a Hybrid Aerostatic Bearing
Mohamed Amine Hassini, Mihai Arghir, Manuel Frocot
GT 2012; 921-931https://doi.org/10.1115/GT2012-69090
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Topics: Bearings , Flow (Dynamics) , Pressure , Computational fluid dynamics , Aerospace industry , Ball bearings , Fluids , Inertia (Mechanics) , Journal bearings , Lubricants
A System Identification Method for Excitation-Frequency Dependent Rotordynamic Coefficients
Timothy W. Dimond, Amir A. Younan, Paul Allaire
GT 2012; 933-943https://doi.org/10.1115/GT2012-69311
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Topics: Excitation , Noise (Sound) , Measurement uncertainty , Rotors , Simulation , Whirls , Bearings , Damping , Design , Excitation systems
Feasibility Study of an Oil-Free Turbocharger Supported on Gas Foil Bearings via On-Road Tests of a 2-Liter Class Diesel Vehicle
Kyuho Sim, Suk Bum Kwon, Tae Ho Kim, Yong-Bok Lee
GT 2012; 945-956https://doi.org/10.1115/GT2012-69586
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Topics: Diesel , Foil bearings , Roads , Turbochargers , Vehicles , Rotors , Bearings , Shock (Mechanics) , Compressors , Engines
A General Model for Two-Point Contact Dry-Friction Whip and Whirl
Jason C. Wilkes
GT 2012; 957-964https://doi.org/10.1115/GT2012-69800
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Topics: Dry-friction whip and whirl , Rotors , Stators , Air bearings , Bushings , Computer simulation , Failure , Magnetic bearings
Improving Tilting-Pad Journal Bearing Predictions: Part I—Model Development and Impact of Rotor-Excited Versus Bearing-Excited Impedance Coefficients
Jason C. Wilkes, Dara W. Childs
GT 2012; 965-978https://doi.org/10.1115/GT2012-69804
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Topics: Bearings , Journal bearings , Model development , Rotors , Clearances (Engineering)
Improving Tilting-Pad Journal Bearing Predictions: Part II—Comparison of Measured and Predicted Rotor-Pad Transfer Functions for a Rocker-Pivot Tilting-Pad Journal Bearing
Jason C. Wilkes, Dara W. Childs
GT 2012; 979-990https://doi.org/10.1115/GT2012-69808
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Topics: Journal bearings , Rotors , Transfer functions , Clearances (Engineering) , Excitation , Probes , Strain gages , Stress , Yaw
Tilting Pad Journal Bearings: A Discussion on Stability Calculation, Frequency Dependence, and Pad and Pivot Flexibility
Jason C. Wilkes, Dara W. Childs
GT 2012; 991-1006https://doi.org/10.1115/GT2012-69809
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Topics: Journal bearings , Stability , Bearings , Damping , Stiffness , Clearances (Engineering) , Stress , Degrees of freedom , Excitation , Operating temperature
Dynamic Characterization of Tilting Pad Journal Bearings From Component and System Level Testing
Adolfo Delgado, Mirko Librashi, Giuseppe Vannini
GT 2012; 1007-1016https://doi.org/10.1115/GT2012-69851
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Topics: Bearings , Clearances (Engineering) , Compressors , Curve fitting , Damping , Dynamic response , Excitation , Geometry , Journal bearings , Rotors
Hole-Pattern and Honeycomb Seal Rotordynamic Forces: Validation of CFD-Based Prediction Techniques
Kenny Krogh Nielsen, Kasper Jønck, Harald Underbakke
GT 2012; 1017-1029https://doi.org/10.1115/GT2012-69878
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Topics: Computational fluid dynamics , Honeycomb structures , Damping , Flow (Dynamics) , Modeling , Clearances (Engineering) , Compressors , Dynamics (Mechanics) , High pressure (Physics) , Leakage

Structural Mechanics and Vibration

On Uncertainty Propagation in Mass, Damping and Stiffness Matrices Identification of Mechanical Systems
Luis U. Medina, Sergio E. Díaz, Ningsheng Feng, Eric J. Hahn
GT 2012; 1031-1040https://doi.org/10.1115/GT2012-68037
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Topics: Damping , Stiffness , Uncertainty , Errors , Algorithms , Excitation , Modeling , Scalars , Signal processing
Investigations on Maximum Amplitude Amplification Factor of Real Mistuned Bladed Structures
David Hemberger, Dietmar Filsinger, Hans-Jörg Bauer
GT 2012; 1041-1052https://doi.org/10.1115/GT2012-68084
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Topics: Blades , Compressors , Electromagnetic scattering , Manufacturing , Materials properties , Strain gages , Stress , Turbines , Turbochargers , Vibration
Numerical Study of a Rotor/Stator Interaction Case Experimentally Simulated With an Industrial Compressor
Alain Batailly, Mathias Legrand, Antoine Millecamps, Francois Garcin
GT 2012; 1053-1062https://doi.org/10.1115/GT2012-68173
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Topics: Aircraft , Blades , Clearances (Engineering) , Coating processes , Coatings , Compressors , Design , Energy efficiency , Maintenance , Mechanical properties
Identification of Eigenmodes and Determination of the Dynamical Behaviour of Open Impellers
Yves Bidaut, Urs Baumann
GT 2012; 1063-1073https://doi.org/10.1115/GT2012-68182
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Topics: Impellers , Blades , Compressors , Stress , Computational methods , Lasers , Strain gages , Computational fluid dynamics , Computer software , Design
On the Identification of the Modal Parameters for a Flexible Turbomachinery Foundation
Minli Yu, Ningsheng Feng, Eric J. Hahn
GT 2012; 1075-1083https://doi.org/10.1115/GT2012-68291
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Topics: Turbomachinery , Rotors , Vibration , Bearings , Accuracy and precision , Equations of motion , Gas turbines , Motion measurement
Probabilistic Mistuning Assessment Using Nominal and Geometry Based Mistuning Methods
Joseph A. Beck, Jeffrey M. Brown, Charles J. Cross, Joseph C. Slater
GT 2012; 1085-1097https://doi.org/10.1115/GT2012-68533
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Topics: Airfoils , Approximation , Design , Dynamic response , Engines , Errors , Excitation , Geometry , Mode shapes , Rotors
Parametric Evaluation of Compressor Blade Blending
W. David Day, Stephen W. Fiebiger, Hitesh N. Patel
GT 2012; 1099-1110https://doi.org/10.1115/GT2012-68641
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Topics: Blades , Compressors , Damage , Airfoils , Stators , Engines , Design , Displacement , Erosion , Failure
Contribution to Free and Forced Vibration Analysis of an Intentionally Mistuned Blisk
Harald Schoenenborn, Michael Junge, Ulrich Retze
GT 2012; 1111-1120https://doi.org/10.1115/GT2012-68683
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Topics: Aeroelasticity , Blades , Disks , Engines , Excitation , Finite element methods , Finite element model , Flutter (Aerodynamics) , Free vibrations , Mode shapes
Modal Tests and Analysis of a Radial Impeller at Rest: Influence of Surrounding Air on Damping
C. Gibert, L. Blanc, P. Almeida, X. Leblanc, J.-P. Ousty, F. Thouverez, J.-P. Laîné
GT 2012; 1121-1131https://doi.org/10.1115/GT2012-69577
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Topics: Damping , Impellers , Vacuum , Pressure , Resonance , Blades , Compressors , Density , Disks , Flow (Dynamics)
Experimental and Numerical Investigations on a Rotating Centrifugal Compressor
Patricio Almeida, Claude Gibert, Xavier Leblanc, Jean-Philippe Ousty, Fabrice Thouverez
GT 2012; 1133-1142https://doi.org/10.1115/GT2012-69760
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Topics: Blades , Compressor impellers , Compressors , Computer simulation , Damping , Disks , Excitation , Finite element methods , Impellers , Laser Doppler vibrometers
Forced Response of a Mistuned Industrial Impeller With Two Different Blade Geometries, via ROM
Luis A. Boulton, Euro Casanova
GT 2012; 1143-1153https://doi.org/10.1115/GT2012-69942
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Topics: Blades , Impellers , Compressor impellers , Disks , Finite element analysis , Geometry , Compressors , Lasers , Modeling , Rotors

Damping Technologies

A Methodology for Evaluating the Damping Effectiveness of a Split Sleeve Damper Tube Design—With an Optimum Design for Rotor Application
Jushin Hsiao
GT 2012; 1155-1159https://doi.org/10.1115/GT2012-68048
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Topics: Dampers , Damping , Design , Rotors , Damage , Energy dissipation , Engineers , Friction , Machinery , Q-factor
Effect of Material Damping of Steam Turbine Vane on Flutter Suppression
Yasutomo Kaneko, Kazushi Mori, Hiroharu Ohyama
GT 2012; 1161-1168https://doi.org/10.1115/GT2012-68089
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Topics: Damping , Flutter (Aerodynamics) , Steam turbines , Finite element analysis , Stability , Aerodynamics , Fluid-dynamic forces , Fluids , Pressure , Vibration analysis
Modeling Contact Dynamics of Vanes With Adjustable Upstream Flow Angles
Daniel Schurzig, Sebastian Tatzko, Lars Panning-von Scheidt, Jörg Wallaschek
GT 2012; 1169-1179https://doi.org/10.1115/GT2012-68185
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Topics: Contact dynamics , Flow (Dynamics) , Modeling , Algorithms , Friction , Compressors , Coulombs , Simulation
Multiharmonic Analysis of Nonlinear Whole Engine Dynamics With Bladed Disc-Casing Rubbing Contacts
E. P. Petrov
GT 2012; 1181-1191https://doi.org/10.1115/GT2012-68474
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Topics: Disks , Dynamics (Mechanics) , Engines , Blades , Rotors , Stators , Gas turbines , Bearings , Frequency-domain analysis , Friction
Robust Design of Friction Interfaces of Bladed Disks With Respect to Parameter Uncertainties
Malte Krack, Lars Panning, Jörg Wallaschek, Christian Siewert, Andreas Hartung
GT 2012; 1193-1204https://doi.org/10.1115/GT2012-68578
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Topics: Design , Disks , Friction , Uncertainty , Coulombs , Damping , Equations of motion , Excitation , Optimization , Probability
On Blade Damping Technology Using Passive Piezoelectric Dampers
Sebastian M. Schwarzendahl, Jaroslaw Szwedowicz, Marcus Neubauer, Lars Panning, Jörg Wallaschek
GT 2012; 1205-1215https://doi.org/10.1115/GT2012-68600
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Topics: Blades , Dampers , Damping , Mode shapes , Compressors , Electrodes , Finite element analysis , Frequency response , Optimization , Piezoelectric materials
Active Piezoelectric Vibration Control of Subscale Composite Fan Blades
Kirsten P. Duffy, Benjamin B. Choi, Andrew J. Provenza, James B. Min, Nicholas Kray
GT 2012; 1217-1226https://doi.org/10.1115/GT2012-68639
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Topics: Blades , Composite materials , Vibration control , Damping , Actuators , Excitation , Fibers , NASA , Particle spin , Piezoelectric materials
Transient Resonance Passage With Respect to Friction
Marius Bonhage, Lars Panning-von Scheidt, Jörg Wallaschek, Christoph Richter
GT 2012; 1227-1237https://doi.org/10.1115/GT2012-68986
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Topics: Friction , Resonance , Transients (Dynamics) , Vibration , Damping , Ansätze (Mathematics) , Computation , Equations of motion , Excitation , Blades
A Study of Nonlinear Vibrations in a Frictionally-Damped Turbine Bladed Disc With Comprehensive Modelling of Aerodynamic Effects
E. P. Petrov, Z.-I. Zachariadis, A. Beretta, R. Elliott
GT 2012; 1239-1251https://doi.org/10.1115/GT2012-69052
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Topics: Disks , Modeling , Turbines , Vibration , Computational fluid dynamics , Gas flow , Boundary-value problems , Chain , Dampers , Damping
Experimental Investigation on the Forced Response of a Dummy Counter Rotating Turbine Stage With Friction Damping
Teresa Berruti, Vanni Maschio, Paolo Calza
GT 2012; 1253-1262https://doi.org/10.1115/GT2012-69059
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Topics: Damping , Friction , Turbines , Dry friction , Dynamics (Mechanics) , Engines , Rotors , Vibration
Vibration Dissipation Characteristics of Symmetrical Piezoelectric Networks With Passive Branches
Yu Fan, Lin Li
GT 2012; 1263-1273https://doi.org/10.1115/GT2012-69208
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Topics: Energy dissipation , Symmetry (Physics) , Vibration , Blades , Circuits , Design , Dynamic models , Electric fields , Electromagnetic spectrum , Energy harvesting
Shape Memory Effect and Hysteresis Behavior of Shape Memory Alloy Metal Rubber
Jie Hong, Baolong Liu, Dayi Zhang, Yanhong Ma
GT 2012; 1275-1281https://doi.org/10.1115/GT2012-69244
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Topics: Metals , Rubber , Shape memory alloys , Shape memory effects , Heat treating (Metalworking) , Temperature , Storage , Deformation , Elastic moduli , Mechanical properties
Modelling of Flange Joints for the Nonlinear Dynamic Analysis of Gas Turbine Engine Casings
C. W. Schwingshackl, E. P. Petrov
GT 2012; 1283-1293https://doi.org/10.1115/GT2012-69281
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Topics: Dynamic analysis , Flanges , Gas turbines , Modeling , Aircraft engines , Bolted joints , Finite element analysis , Friction , Separation (Technology) , Stiffness
A Nonlinear Vibration Absorber Based on Nonlinear Shunted Piezoelectrics
Biao Zhou, Fabrice Thouverez, David Lenoir
GT 2012; 1295-1306https://doi.org/10.1115/GT2012-69322
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Topics: Nonlinear vibration , Blades , Vibration absorbers , Vibration , Circuit design , Circuits , Computer simulation , Design , Disks , Dynamics (Mechanics)
Parametric Studies of Nonlinear Damping Behavior of APS Thermal Barrier Coatings Based on Cohesive Interface Model
Yong Chen, Wei Dong
GT 2012; 1307-1314https://doi.org/10.1115/GT2012-69343
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Topics: Damage , Damping , Thermal barrier coatings
Experimental Friction Damping Characteristic of a Steam Turbine Blade Coupled by Shroud and Snubber at Standstill Set-Up
Jun Wu, Yonghui Xie, Di Zhang, Minghui Zhang
GT 2012; 1315-1323https://doi.org/10.1115/GT2012-69472
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Topics: Blades , Damping , Friction , Steam turbines , Turbine blades , Resonance , Energy dissipation , Failure , Finite element analysis , High cycle fatigue
Measurement of Contact Parameters of Flat on Flat Contact Surfaces at High Temperature
D. Botto, M. Lavella, M. M. Gola
GT 2012; 1325-1332https://doi.org/10.1115/GT2012-69677
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Topics: High temperature , Blades , Wear , Friction , Displacement , Stiffness , Vibration , Aircraft engines , Damping , Design
Decreasing Bladed Disk Response With Dampers on a Few Blades: Part I—Optimization Algorithms and Blade-Only Dampers Applications
Raghavendra Murthy, Marc P. Mignolet
GT 2012; 1333-1344https://doi.org/10.1115/GT2012-69789
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Topics: Blades , Dampers , Disks , Optimization , Optimization algorithms
Decreasing Bladed Disk Response With Dampers on a Few Blades: Part II—Nonlinear and Blade-Blade Dampers Applications
Raghavendra Murthy, Marc P. Mignolet
GT 2012; 1345-1353https://doi.org/10.1115/GT2012-69797
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Topics: Blades , Dampers , Disks , Optimization

Aerodynamic Excitation and Damping (With Turbomachinery)

Validation of a Linearized Navier-Stokes Based Flutter Prediction Tool: Part 1—Numerical Methods
Hans-Peter Kersken, Graham Ashcroft, Christian Frey, Oliver Pütz, Heinrich Stüer, Stefan Schmitt
GT 2012; 1355-1363https://doi.org/10.1115/GT2012-68018
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Topics: Flutter (Aerodynamics) , Numerical analysis , Chain , Computation , Reynolds-averaged Navier–Stokes equations , Turbine blades , Cascades (Fluid dynamics) , Computer software , Flow (Dynamics) , Gas turbines
High-Cycle Fatigue of Fan Blades Accounting for Fluid-Structure Interaction
Priyanka Dhopade, Andrew J. Neely, John Young, Krishna Shankar
GT 2012; 1365-1372https://doi.org/10.1115/GT2012-68102
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Topics: Accounting , Blades , Fluid structure interaction , High cycle fatigue , Stress , Damage , Engines , Fatigue analysis , Gas turbines , Stators
Developing a Reduced-Order Model to Understand Non-Synchronous Vibration (NSV) in Turbomachinery
Stephen T. Clark, Robert E. Kielb, Kenneth C. Hall
GT 2012; 1373-1382https://doi.org/10.1115/GT2012-68145
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Topics: Turbomachinery , Vibration , Design , Blades , Engineers , Computational fluid dynamics , Fluids , Limit cycles , Locks (Waterways) , Modeling
Effects of Rotor Tip Clearance on Tip Clearance Flow Potentially Leading to NSV in an Axial Compressor
Hong-Sik Im, Ge-Cheng Zha
GT 2012; 1383-1394https://doi.org/10.1115/GT2012-68148
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Topics: Clearances (Engineering) , Compressors , Flow (Dynamics) , Rotors , Wake turbulence , Annulus , Blades , Boundary-value problems , Computer simulation , Leakage flows
Simulation of Non-Synchronous Blade Vibration of an Axial Compressor Using a Fully Coupled Fluid/Structure Interaction
Hong-Sik Im, Ge-Cheng Zha
GT 2012; 1395-1407https://doi.org/10.1115/GT2012-68150
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Topics: Blades , Compressors , Fluid structure interaction , Simulation , Vibration , Rotors , Boundary-value problems , Stators , Annulus , Engines
Aeroelasticity at Reversed Flow Conditions: Part 3—Reduction of Surge Loads by Means of Intentional Mistuning
Harald Schoenenborn, Mirja de Vries
GT 2012; 1409-1418https://doi.org/10.1115/GT2012-68237
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Topics: Aeroelasticity , Flow (Dynamics) , Stress , Surges , Blades , Compressors , Computational fluid dynamics , Pressure , Airfoils , Damage
Forced Response in Axial Turbines Under the Influence of Partial Admission
Jens Fridh, Björn Laumert, Torsten Fransson
GT 2012; 1419-1429https://doi.org/10.1115/GT2012-68303
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Topics: Turbines , Design , Excitation , High cycle fatigue , Rotors , Engines , Stators , Blades , Failure , Pressure
Influence of Mesh Density and Turbulence Models on 2D Viscous Flutter in 11th Standard Configuration
Aleksandra Pajak, Romuald Rzadkowski
GT 2012; 1431-1439https://doi.org/10.1115/GT2012-68393
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Topics: Density , Flutter (Aerodynamics) , Turbulence , Blades , Cascades (Fluid dynamics) , Computer simulation , Oscillations , Pressure
Three-Dimensional Viscous Flutter Analyses of a Turbine Cascade in Subsonic and Transonic Flows
Derek Micallef, Dirk Witteck, Alexander Wiedermann, David Kluß, Ronald Mailach
GT 2012; 1441-1451https://doi.org/10.1115/GT2012-68396
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Topics: Cascades (Fluid dynamics) , Flutter (Aerodynamics) , Transonic flow , Turbines , Computational fluid dynamics , Flow (Dynamics) , Boundary-value problems , Damping , Design , Engineering simulation
Full-Annulus Multi-Row Flutter Analyses
Kwen Hsu, Dan Hoyniak, M. S. Anand
GT 2012; 1453-1462https://doi.org/10.1115/GT2012-68631
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Topics: Annulus , Flutter (Aerodynamics) , Blades , Design , Flow (Dynamics) , Rotors , Simulation results , Turbomachinery , Compressors , Manufacturing
Effect of Adjacent Blade Motion on the Aerodynamics of a Linear Cascade Blade
K. Naresh Babu, A. Kushari, C. Venkatesan
GT 2012; 1463-1471https://doi.org/10.1115/GT2012-68666
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Topics: Aerodynamics , Blades , Cascades (Fluid dynamics) , Compressors , Flutter (Aerodynamics) , Stability , Chords (Trusses) , Design , Drag (Fluid dynamics) , Flow (Dynamics)
Non-Linear Time and Frequency Domain Methods for Multi-Row Aeromechanical Analysis
M. T. Rahmati, L. He, D. X. Wang, Y. S. Li, R. G. Wells, S. K. Krishnababu
GT 2012; 1473-1485https://doi.org/10.1115/GT2012-68723
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Topics: Blades , Boundary-value problems , Damping , Numerical analysis , Pressure , Reflection , Rotors , Waves
Combined Effects of Both Axial Gap and Blade Count Ratio on the Unsteady Forces of a Steam Turbine Stage
Tie Chen, Kush Patel, Peter Millington
GT 2012; 1487-1494https://doi.org/10.1115/GT2012-68874
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Topics: Blades , Steam turbines , Design , Computational fluid dynamics , Fourier transforms , Rotating blades , Shapes , Wakes
Unsteady Flow Analysis and Vibratory Stress Predictions for a High Work Single Stage Turbine Blade
Kurt Weber, Girish Modgil, Steve Gegg, Shyam Neerarambam, Moujin Zhang
GT 2012; 1495-1506https://doi.org/10.1115/GT2012-69085
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Topics: Stress , Turbine blades , Unsteady flow , Flow (Dynamics) , Storage , Turbines , Blades , Engines , Strain gages , Excitation
Vaned Diffuser Induced Impeller Blade Vibrations in a High-Speed Centrifugal Compressor
Armin Zemp, Reza S. Abhari
GT 2012; 1507-1518https://doi.org/10.1115/GT2012-69400
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Topics: Blades , Compressors , Diffusers , Impellers , Vibration , Damping , Stress , Dimensions , Engineering simulation , Failure
Analysis on Flutter Characteristics of Transonic Compressor Blade Row by a Fluid-Structure Coupled Method
Mingming Zhang, Anping Hou, Sheng Zhou, Xiaodong Yang
GT 2012; 1519-1528https://doi.org/10.1115/GT2012-69439
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Topics: Blades , Compressors , Fluids , Flutter (Aerodynamics) , Deformation , Aerodynamics , Clearances (Engineering) , Computation , Finite element model , Fluid-dynamic forces
Numerical Simulation of Unsteady Flow Around Oscillating Blade
R. A. Zagitov, N. V. Shuvaev, A. N. Dushko, Yu. N. Shmotin
GT 2012; 1529-1536https://doi.org/10.1115/GT2012-69458
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Topics: Blades , Computer simulation , Unsteady flow , Airfoils , Oscillations , Compressors , Air flow , Algebra , Boundary-value problems , Cascades (Fluid dynamics)
Uncertainty of Forced Response Numerical Predictions of an Industrial Blisk: Comparison With Experiments
María A. Mayorca, Damian M. Vogt, Hans Mårtensson, Clas Andersson, Torsten H. Fransson
GT 2012; 1537-1548https://doi.org/10.1115/GT2012-69534
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Topics: Uncertainty , Computational fluid dynamics , Damping , Vibration , Aerodynamics , Blades , Chain , Compressors , Design , Excitation
A Comparison of Two Load Transferring Methods in an Unsteady One-Way Fluid-Structure Interaction Analysis
Marcin Drewczynski, Marek Solinski, Romuald Rzadkowski
GT 2012; 1549-1558https://doi.org/10.1115/GT2012-69543
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Topics: Fluid structure interaction , Stress , Blades , Rotors , Computational fluid dynamics , Transients (Dynamics) , Compressors , Flow (Dynamics) , Aeroelasticity , Aircraft engines
Forced Response Analyses of Mistuned Radial Inflow Turbines
Thomas Giersch, Peter Hönisch, Bernd Beirow, Arnold Kühhorn
GT 2012; 1559-1570https://doi.org/10.1115/GT2012-69556
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Topics: Inflow , Turbines , Blades , Wheels , Damping , Engines , Excitation , Fluid structure interaction , Modeling , Numerical analysis
Simulation of 2-Way Fluid Structure Interaction in a 3D Model Combustor
Mina Shahi, Jim B. W. Kok, P. R. Alemela
GT 2012; 1571-1580https://doi.org/10.1115/GT2012-69681
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Topics: Acoustics , Combustion chambers , Fluid structure interaction , Oscillations , Pressure , Simulation , Three-dimensional models
Validation of Linearized Navier-Stokes Based Flutter Prediction Tool: Part 2—Quantification of the Prediction Accuracy on a Turbine Test Case
Antonio Sanz Luengo, Damian M. Vogt, Stefan Schmitt, Torsten H. Fransson
GT 2012; 1581-1592https://doi.org/10.1115/GT2012-69682
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Topics: Flutter (Aerodynamics) , Turbines , Blades , Chain , Pressure , Stability , Turbine blades , Cascades (Fluid dynamics) , Condensation , Numerical analysis
Reduced Order Modeling for the Flutter Stability Analysis of a Highly Loaded Transonic Fan
Markus May
GT 2012; 1593-1602https://doi.org/10.1115/GT2012-69775
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Topics: Flutter (Aerodynamics) , Modeling , Stability , Computational fluid dynamics , Engineering simulation , Physics , Risk , Simulation
Forced Response Analysis of a Transonic Fan
Parthasarathy Vasanthakumar, Paul-Benjamin Ebel
GT 2012; 1603-1608https://doi.org/10.1115/GT2012-69867
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Topics: Aerodynamics , Blades , Computation , Computational fluid dynamics , Damping , Equilibrium (Physics) , Failure , Finite element analysis , Flow (Dynamics) , Fluid-dynamic forces
Impact of the Flow on an Acoustic Excitation System for Aeroelastic Studies
Oliver Freund, Michael Bartelt, Marc Mittelbach, Matthew Montgomery, Damian M. Vogt, Joerg R. Seume
GT 2012; 1609-1620https://doi.org/10.1115/GT2012-69966
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Topics: Acoustics , Excitation systems , Flow (Dynamics) , Excitation , Blades , Vibration , Machinery , Turbomachinery , Mach number , Aeroelasticity
Leakage-Induced Compressor Blade Excitation due to Inter-Segment Gaps
Ronnie Bladh, Qingyuan Zhuang, Jiasen Hu, Johan Hammar
GT 2012; 1621-1632https://doi.org/10.1115/GT2012-70040
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Topics: Blades , Compressors , Excitation , Leakage , Leakage flows , Industrial gases , Turbines , Aerodynamics , Computational fluid dynamics , Engineering simulation
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