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Proceedings Volume Cover

ASME Turbo Expo 2001: Power for Land, Sea, and Air

June 4–7, 2001

New Orleans, Louisiana, USA

Conference Sponsors:

ISBN:

978-0-7918-7853-8

In This Volume

Manufacturing Materials and Metallurgy (18)
Ceramics (15)
Structures and Dynamics (62)
Controls, Diagnostics and Instrumentation (33)
Education (4)
IGTI Scholar Award (1)

Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award

Manufacturing Materials and Metallurgy

Status of AMG (Advanced Material Gas-Generator) Research and Development Program

T. Kuriyama, H. Miyagawa, M. Uyama, S. Yamamoto, S. Yokoi, M. Hiromatsu

GT 2001; V004T01A001https://doi.org/10.1115/2001-GT-0219

View Articletitled, Status of AMG (Advanced Material Gas-Generator) Research and Development Program

Topics: Advanced materials , Generators , Industrial research , Ceramic matrix composites , Titanium aluminide , Aircraft , Fuel consumption , Gas turbines , Metal matrix composites , Polymer composites

Local/Global Effects of Mistuning on the Forced Response of Bladed Disks

Alejandro J. Rivas-Guerra, Marc P. Mignolet

GT 2001; V004T01A002https://doi.org/10.1115/2001-GT-0414

View Articletitled, Local/Global Effects of Mistuning on the Forced Response of Bladed Disks

Topics: Disks , Blades , Modeling

Development of Assessment Method for Oxidation Resistance of MCrAlY Coating on Gas Turbine Bucket: Part 1

Mitsutoshi Okada, Yoshiyuki Etori, Toru Hisamatsu

GT 2001; V004T01A003https://doi.org/10.1115/2001-GT-0415

View Articletitled, Development of Assessment Method for Oxidation Resistance of MCrAlY Coating on Gas Turbine Bucket: Part 1

Topics: Coating processes , Coatings , Gas turbines , Oxidation , Aluminum , Steam , Stress , Temperature , Density , Diffusion (Physics)

Ductility Loss in Aluminized CoCrAlY Coatings Exposed to In-Service Environment

N. Shinohara, A. Ito, K. Sugiyama, Y. Sugita, J. Kameda, T. E. Bloomer, S. Sakurai

GT 2001; V004T01A004https://doi.org/10.1115/2001-GT-0416

View Articletitled, Ductility Loss in Aluminized CoCrAlY Coatings Exposed to In-Service Environment

Topics: Coatings , Ductility , Blades , Gas turbines , Testing , Combustion , Liquefied natural gas , Mechanical properties , Operating temperature , Temperature

Estimation of Thermophysical Properties and Microstructure of Aged Thermal Barrier Coatings

Tomoharu Fujii, Takeshi Takahashi

GT 2001; V004T01A005https://doi.org/10.1115/2001-GT-0417

View Articletitled, Estimation of Thermophysical Properties and Microstructure of Aged Thermal Barrier Coatings

Topics: Thermal barrier coatings , Temperature , Thermal conductivity , Heat , Plasmas (Ionized gases) , Sprays , Combustion chambers , Gas turbines , Heating , Metals

Qualification of a Frequency Scanning Eddy Current Equipment for Nondestructive Characterization of New and Serviced High-Temperature Coatings

Giampiero Antonelli, Paola Crisafulli, Giacomo Tirone

GT 2001; V004T01A006https://doi.org/10.1115/2001-GT-0419

View Articletitled, Qualification of a Frequency Scanning Eddy Current Equipment for Nondestructive Characterization of New and Serviced High-Temperature Coatings

Topics: Coatings , Eddies (Fluid dynamics) , Eddy currents (Electricity) , High temperature , Nondestructive evaluation , Gas turbines , Blades , Cooling , Cycles , Damage

The Effects of Entrapped Grit on the Thermomechanical Fatigue Properties of a Pt-Al Superalloy Coating

Andrew L. Purvis, Bruce M. Warnes

GT 2001; V004T01A007https://doi.org/10.1115/2001-GT-0420

View Articletitled, The Effects of Entrapped Grit on the Thermomechanical Fatigue Properties of a Pt-Al Superalloy Coating

Topics: Coating processes , Coatings , Fatigue properties , Superalloys , Thermomechanics , Chemical vapor deposition , Electron microscopy , Fatigue , Fatigue cracks , Gas turbines

Optimizing Deformation Path for Stress Relaxation Tests on Superalloys at High Temperatures

Nirmal K. Sinha, Rick Kearsey

GT 2001; V004T01A008https://doi.org/10.1115/2001-GT-0421

View Articletitled, Optimizing Deformation Path for Stress Relaxation Tests on Superalloys at High Temperatures

Topics: Deformation , High temperature , Relaxation (Physics) , Stress , Superalloys , Temperature , Nickel , Alloys , Ceramics , Flow (Dynamics)

Low-Cycle Fatigue of Nickel-Based Superalloy Hastelloy X at Elevated Temperatures

Lijia Chen, Peter K. Liaw, Robert L. McDaniels, James W. Blust, Paul F. Browning, Rodger R. Seeley, Dwain L. Klarstrom

GT 2001; V004T01A009https://doi.org/10.1115/2001-GT-0422

View Articletitled, Low-Cycle Fatigue of Nickel-Based Superalloy Hastelloy X at Elevated Temperatures

Topics: Low cycle fatigue , Nickel , Superalloys , Temperature , Alloys , Stress , Fatigue life , Fracture (Materials) , Hardening , Relaxation (Physics)

Dwell Sensitive Fatigue Response of Titanium Alloys for Power Plant Applications

Martin R. Bache, W. John Evans

GT 2001; V004T01A010https://doi.org/10.1115/2001-GT-0424

View Articletitled, Dwell Sensitive Fatigue Response of Titanium Alloys for Power Plant Applications

Topics: Fatigue , Power stations , Titanium alloys , Stress , Creep , Failure , Fatigue testing , Temperature

Failure Analysis of Inlet Guide Vanes

Ronald L. McAlpin, Peggy L. Talley, Henry L. Bernstein, Robert E. Holm

GT 2001; V004T01A011https://doi.org/10.1115/2001-GT-0428

View Articletitled, Failure Analysis of Inlet Guide Vanes

Topics: Failure analysis , Inlet guide vanes , Cracking (Materials) , Fracture (Process) , Bushings , Failure , Finite element analysis , Polymers , Wear , Corrosion

Designing Hot Working Processes of Nickel Base Superalloys Using FEM Simulation

R. Kopp, M. Tschirnich, M. Wolske, J. Klöwer

GT 2001; V004T01A012https://doi.org/10.1115/2001-GT-0429

View Articletitled, Designing Hot Working Processes of Nickel Base Superalloys Using FEM Simulation

Topics: Design , Finite element methods , Finite element model , Nickel , Simulation , Superalloys , Alloys , Forging , Temperature , Testing

High Temperature Fatigue/Creep/Environment Interactions in Compressor Alloys

W. John Evans, J. Paul Jones, Martin R. Bache

GT 2001; V004T01A013https://doi.org/10.1115/2001-GT-0477

View Articletitled, High Temperature Fatigue/Creep/Environment Interactions in Compressor Alloys

Topics: Alloys , Compressors , Creep , Fatigue , High temperature , Gas turbines , Damage , Fracture (Materials) , Nickel alloys , Pressure

Liquid Phase Diffusion Bond Repair of Siemens V84.2, Row 2 Vanes and Alstom Tornado, 2^nd Stage Stator Segments

Warren M. Miglietti, John Kearney, Luis Pabon

GT 2001; V004T01A014https://doi.org/10.1115/2001-GT-0510

View Articletitled, Liquid Phase Diffusion Bond Repair of Siemens V84.2, Row 2 Vanes and Alstom Tornado, 2<sup>nd</sup> Stage Stator Segments

Topics: Diffusion (Physics) , Maintenance , Stators , Damage , Base metals , Erosion , Mechanical properties , Temperature , Airfoils , Chemistry

Development and Implementation of Repair Processes for Refurbishment of W501F, Row 1 Turbine Blades

Richard Curtis, Warren Miglietti, Michael Pelle

GT 2001; V004T01A015https://doi.org/10.1115/2001-GT-0569

View Articletitled, Development and Implementation of Repair Processes for Refurbishment of W501F, Row 1 Turbine Blades

Topics: Maintenance , Turbine blades , Gas turbines , Coating processes , Coatings , Machinery , Cathode ray oscilloscopes , Combined cycles , Combustion , Construction

LSR™ Slurry Coating Technologies

J. Liburdi, V. Moravek, P. Lowden

GT 2001; V004T01A016https://doi.org/10.1115/2001-GT-0575

View Articletitled, LSR™ Slurry Coating Technologies

Topics: Coatings , Slurries , Cycles , Maintenance , Manufacturing , Oxidation , Platinum , Silicon , Sprays

The Implementation of Spray Forming for High Temperature Casing Applications

Alan Partridge, Michael B. Henderson, David G. Cole, Paul Andrews

GT 2001; V004T01A017https://doi.org/10.1115/2001-GT-0581

View Articletitled, The Implementation of Spray Forming for High Temperature Casing Applications

Topics: High temperature , Sprays , Alloys , Gas turbines , Hot pressing , Manufacturing , Nickel alloys , Shapes

Creep and Thermomechanical Fatigue Modelling of Single Crystal Superalloy Turbine Blades

M. B. Henderson, T. J. Ward, G. F. Harrison, M. Hughes

GT 2001; V004T01A018https://doi.org/10.1115/2001-GT-0596

View Articletitled, Creep and Thermomechanical Fatigue Modelling of Single Crystal Superalloy Turbine Blades

Topics: Creep , Crystals , Fatigue , Modeling , Superalloys , Thermomechanics , Turbine blades , Anisotropy , Blades , Turbines

Ceramics

Ceramic Stationary Gas Turbine Program: Monolithic Ceramic Component Development Summary

Mark van Roode, Jeffrey R. Price, David W. Richerson, Vijay Parthasarathy, George A. Graves

GT 2001; V004T02A001https://doi.org/10.1115/2001-GT-0457

View Articletitled, Ceramic Stationary Gas Turbine Program: Monolithic Ceramic Component Development Summary

Topics: Ceramics , Gas turbines , Industrial ceramics , Silicon , Blades , Silicon nitride ceramics , Combustion chambers , Engines , Industrial gases , Nozzles

Oxidation Behavior of Prospective Silicon Nitride Materials for Advanced Microturbine Applications

Bjoern Schenk, Tom Strangman, Elizabeth J. Opila, R. Craig Robinson, Dennis S. Fox, Hagen Klemm, Christine Taut, Karren More, Peter Torterelli

GT 2001; V004T02A002https://doi.org/10.1115/2001-GT-0459

View Articletitled, Oxidation Behavior of Prospective Silicon Nitride Materials for Advanced Microturbine Applications

Topics: Microturbines , Oxidation , Silicon nitride ceramics , Engines , Testing , Ceramics , Coating processes , Coatings , Turbines , Energy generation

Accelerated Testing Methodologogy in Constant Stress-Rate Testing for Advanced Structural Ceramics: A Preloading Technique

Sung R. Choi, John P. Gyekenyesi, Dean Huebert, Allen Bartlett, Han-Ho Choi

GT 2001; V004T02A003https://doi.org/10.1115/2001-GT-0460

View Articletitled, Accelerated Testing Methodologogy in Constant Stress-Rate Testing for Advanced Structural Ceramics: A Preloading Technique

Topics: Ceramics , Stress , Testing , Temperature , Failure mechanisms , Glass , Brittleness , Composite materials , Failure , Fatigue

Mechanical Behavior of Notched SiC/SiC Composites

Gregory N. Morscher, John Z. Gyekenyesi, Andrew L. Gyekenyesi

GT 2001; V004T02A004https://doi.org/10.1115/2001-GT-0461

View Articletitled, Mechanical Behavior of Notched SiC/SiC Composites

Topics: Composite materials , Mechanical behavior , Stress , Ceramic matrix composites , Fibers , Cracking (Materials) , Fracture (Process) , Gas turbines , Stress concentration , Acoustic emissions

Probabilistic Residual Strength Model for Stress Rupture of SiC/SiC Composites

David J. Thomas

GT 2001; V004T02A005https://doi.org/10.1115/2001-GT-0462

View Articletitled, Probabilistic Residual Strength Model for Stress Rupture of SiC/SiC Composites

Topics: Composite materials , Rupture , Stress , Calibration , Brittleness , Design , Engineering design processes , Failure , Satin , Tensile strength

Tensile Fatigue and Life Prediction of a SiC/SiC Composite

Jun Shi

GT 2001; V004T02A006https://doi.org/10.1115/2001-GT-0463

View Articletitled, Tensile Fatigue and Life Prediction of a SiC/SiC Composite

Topics: Composite materials , Fatigue , Tension , Cycles , Deformation , Fatigue life , Stiffness , Stress

Research Into Technological and Structural Capabilities of Alumino-Boron-Nitride Ceramic Material for Gas Turbine Engine Applications

A. V. Soudarev, V. V. Grishaev, A. A. Souryaninov, B. V. Soudarev, A. S. Molchanov

GT 2001; V004T02A007https://doi.org/10.1115/2001-GT-0464

View Articletitled, Research Into Technological and Structural Capabilities of Alumino-Boron-Nitride Ceramic Material for Gas Turbine Engine Applications

Topics: Boron , Ceramics , Gas turbines , High temperature

Development of the Advanced Combustor Liner Composed of CMC/GMC Hybrid Composite Material

Ken-ichiroh Igashira, Go Matsubara, Yoshihiro Matsuda, Akira Imamura

GT 2001; V004T02A008https://doi.org/10.1115/2001-GT-0511

View Articletitled, Development of the Advanced Combustor Liner Composed of CMC/GMC Hybrid Composite Material

Topics: Ceramic matrix composites , Combustion chambers , Composite materials , Generators , Advanced materials , Combustion , Fuels , Glass , Nitrogen oxides , Stress analysis (Engineering)

Ceramic Stationary Gas Turbine Program: Combustor Liner Development Summary

Narendernath Miriyala, Anthony Fahme, Mark van Roode

GT 2001; V004T02A009https://doi.org/10.1115/2001-GT-0512

View Articletitled, Ceramic Stationary Gas Turbine Program: Combustor Liner Development Summary

Topics: Ceramics , Combustion chambers , Gas turbines , Engines , Design , Emissions , Solar energy , Testing , Turbines

EBC Protection of SiC/SiC Composites in the Gas Turbine Combustion Environment: Continuing Evaluation and Refurbishment Considerations

Harry E. Eaton, Gary D. Linsey, Ellen Y. Sun, Karren L. More, Joshua B. Kimmel, Jeffrey R. Price, Narendernath Miriyala

GT 2001; V004T02A010https://doi.org/10.1115/2001-GT-0513

View Articletitled, EBC Protection of SiC/SiC Composites in the Gas Turbine Combustion Environment: Continuing Evaluation and Refurbishment Considerations

Topics: Combustion , Composite materials , Gas turbines , Ceramic matrix composites , Engines , Combustion chambers , Silicon , Turbines , Ceramics , Coating processes

The Development of Ceramic-Based Thermocouples for Application in Gas Turbines

D. M. Farrell, J. Parmar, B. J. Robbins

GT 2001; V004T02A011https://doi.org/10.1115/2001-GT-0514

View Articletitled, The Development of Ceramic-Based Thermocouples for Application in Gas Turbines

Topics: Ceramics , Gas turbines , Thermocouples , Sustainability , Boilers , Combustion chambers , Energy generation , Engineering prototypes , Engines , High temperature

Development of the Hybrid Gas Turbine: 1st Year Summary — Research and Development on Practical Industrial Cogeneration Technology in Japan

Ryozo Tanaka, Testuo Tastumi, Yoshihiro Ichikawa, Koji Sanbonsugi

GT 2001; V004T02A012https://doi.org/10.1115/2001-GT-0515

View Articletitled, Development of the Hybrid Gas Turbine: 1st Year Summary — Research and Development on Practical Industrial Cogeneration Technology in Japan

Topics: Combined heat and power , Gas turbines , Industrial research , Ceramics , Reliability , Carbon dioxide , Emissions , Energy efficiency , High temperature , Industrial ceramics

Development and Evaluation of Ceramic Components for 8000-kW Class Hybrid Gas Turbine

Sazo Tsuruzono, Makoto Yoshida, Toshifumi Kubo, Takashi Ono, Takero Fukudome

GT 2001; V004T02A013https://doi.org/10.1115/2001-GT-0516

View Articletitled, Development and Evaluation of Ceramic Components for 8000-kW Class Hybrid Gas Turbine

Topics: Gas turbines , Industrial ceramics , Ceramics , Combustion chambers , Creep , Ducts , High temperature , Manufacturing , Nozzles , Reliability

Ceramic Stationary Gas Turbine Development Program: Eighth Annual Summary

Jeffrey Price, Oscar Jimenez, Narendernath Miriyala, Josh B. Kimmel, Don R. Leroux, Tony Fahme

GT 2001; V004T02A014https://doi.org/10.1115/2001-GT-0517

View Articletitled, Ceramic Stationary Gas Turbine Development Program: Eighth Annual Summary

Topics: Ceramics , Gas turbines , Engines , Combustion chambers , Blades , Combined heat and power , Industrial ceramics , Nozzles , Emissions , Solar energy

Rig and Gas Turbine Engine Testing of MI-CMC Combustor and Shroud Components

Gregory Corman, Anthony Dean, Stephen Brabetz, Keith McManus, Milivoj Brun, Peter Meschter, Krishan Luthra, HongYu Wang, Robert Orenstein, Mark Schroder, Devin Martin, Roberta De Stefano, Leonardo Tognarelli

GT 2001; V004T02A015https://doi.org/10.1115/2001-GT-0593

View Articletitled, Rig and Gas Turbine Engine Testing of MI-CMC Combustor and Shroud Components

Topics: Ceramic matrix composites , Combustion chambers , Gas turbines , Testing , Engines , Combustion , High pressure (Physics) , Industrial gases , Machinery , Risk

Structures and Dynamics

Effects of Wheel-Shaft-Fluid Coupling and Local Wheel Deformations on the Global Behavior of Shaft Lines

D. Lornage, E. Chatelet, G. Jacquet-Richardet

GT 2001; V004T03A001https://doi.org/10.1115/2001-GT-0233

View Articletitled, Effects of Wheel-Shaft-Fluid Coupling and Local Wheel Deformations on the Global Behavior of Shaft Lines

Topics: Deformation , Fluids , Wheels , Disks , Fluid films , Manufacturing , Finite element methods , Fluid bearings , Leakage flows , Pressure

Finite Element and Transfer Matrix Methods for Rotordynamics: A Comparison

Jorgen L. Nikolajsen

GT 2001; V004T03A002https://doi.org/10.1115/2001-GT-0234

View Articletitled, Finite Element and Transfer Matrix Methods for Rotordynamics: A Comparison

Topics: Finite element analysis , Finite element methods , Free vibrations , Polynomials , Rotordynamics , Rotors

Gearbox Failure of a Turbogenerator Set

J. S. Rao, K. Ch. Peraiah

GT 2001; V004T03A003https://doi.org/10.1115/2001-GT-0235

View Articletitled, Gearbox Failure of a Turbogenerator Set

Topics: Failure , Mechanical drives , Turbogenerators , Circuits , Accidents , Couplings , Degrees of freedom , Fatigue life , Gears , Magnification

Dynamics of Labyrinth Gas Seals With Air Injection

K. Kwanka

GT 2001; V004T03A004https://doi.org/10.1115/2001-GT-0236

View Articletitled, Dynamics of Labyrinth Gas Seals With Air Injection

Topics: Brakes , Cavities , Design , Dynamics (Mechanics) , Honeycomb structures , Rotors , Stability , Stators , Turbomachinery , Vibration

Measurements Versus Predictions for the Dynamic Impedance of Annular Gas Seals: Part 1 — Test Facility and Apparatus

Matthew P. Dawson, Dara W. Childs, Christopher G. Holt, Stephen G. Phillips

GT 2001; V004T03A005https://doi.org/10.1115/2001-GT-0237

View Articletitled, Measurements Versus Predictions for the Dynamic Impedance of Annular Gas Seals: Part 1 — Test Facility and Apparatus

Topics: Annulus , Excitation , Gates (Closures) , Leakage , Pressure , Pressure drop , Stators , Temperature , Test facilities

Measurements Versus Predictions for the Dynamic Impedance of Annular Gas Seals: Part 2 — Smooth and Honeycomb Geometries

Matthew P. Dawson, Dara W. Childs

GT 2001; V004T03A006https://doi.org/10.1115/2001-GT-0238

View Articletitled, Measurements Versus Predictions for the Dynamic Impedance of Annular Gas Seals: Part 2 — Smooth and Honeycomb Geometries

Topics: Honeycomb structures , Leakage , Clearances (Engineering) , Computer software , Pressure , Test facilities

Predicted Effects of Shunt Injection on the Rotordynamics of Gas Labyrinth Seals

Namhyo Kim, Sung-Young Park, David L. Rhode

GT 2001; V004T03A007https://doi.org/10.1115/2001-GT-0239

View Articletitled, Predicted Effects of Shunt Injection on the Rotordynamics of Gas Labyrinth Seals

Topics: Rotordynamics , Flow (Dynamics) , High pressure (Physics) , Computational fluid dynamics , Pressure , Stiffness , Turbomachinery

A Harmonic Wavelets Approach for Extracting Transient Patterns From Measured Rotor Vibration Data

Valeta Carol Chancey, George T. Flowers, Candice L. Howard

GT 2001; V004T03A008https://doi.org/10.1115/2001-GT-0241

View Articletitled, A Harmonic Wavelets Approach for Extracting Transient Patterns From Measured Rotor Vibration Data

Topics: Rotor vibration , Transients (Dynamics) , Wavelets , Vibration analysis , Vibration , Algorithms , Fourier transforms , Machinery , Signals , Simulation

Complex Variable Filtering: The Next Step in Rotor Diagnostics

Wes Franklin, Donald E. Bently

GT 2001; V004T03A009https://doi.org/10.1115/2001-GT-0242

View Articletitled, Complex Variable Filtering: The Next Step in Rotor Diagnostics

Topics: Filtration , Rotors , Probes , Transducers , Algorithms , Machinery , Anisotropy , Resonance , Signals

Using Guided Balls to Auto-Balance Rotors

Håkan L. Wettergren

GT 2001; V004T03A010https://doi.org/10.1115/2001-GT-0243

View Articletitled, Using Guided Balls to Auto-Balance Rotors

Topics: Bearings , Damping , Design , Equilibrium (Physics) , Machinery , Rotors , Vibration

Ritz Series Analysis of Rotating Machinery Incorporating Timoshenko Beam Theory

Nicole L. Zirkelback, Jerry H. Ginsberg

GT 2001; V004T03A011https://doi.org/10.1115/2001-GT-0244

View Articletitled, Ritz Series Analysis of Rotating Machinery Incorporating Timoshenko Beam Theory

Topics: Bearings , Disks , Displacement , Dynamic response , Equations of motion , Inertia (Mechanics) , Machinery , Modal analysis , Potential energy , Shear (Mechanics)

Estimation of Distributed Unbalance of Rotors

Tachung Yang, Chunyi Lin

GT 2001; V004T03A012https://doi.org/10.1115/2001-GT-0245

View Articletitled, Estimation of Distributed Unbalance of Rotors

Topics: Rotors , Disks , Bearings , Finite element model , Impellers , Modeling , Polynomials , Vibration

A Multi-Point Measurement Technique for the Enhancement of Force Measurement With Active Magnetic Bearings

Jeremy T. Marshall, Mary E. F. Kasarda, Joe Imlach

GT 2001; V004T03A013https://doi.org/10.1115/2001-GT-0246

View Articletitled, A Multi-Point Measurement Technique for the Enhancement of Force Measurement With Active Magnetic Bearings

Topics: Force measurement , Magnetic bearings , Bearings , Actuators , Errors , Leakage , Stress , Uncertainty , Algorithms , Currents

Experimental Evaluation of a Metal Mesh Bearing Damper in Parallel With a Structural Support

Eyad M. Al-Khateeb, John M. Vance

GT 2001; V004T03A014https://doi.org/10.1115/2001-GT-0247

View Articletitled, Experimental Evaluation of a Metal Mesh Bearing Damper in Parallel With a Structural Support

Topics: Bearings , Dampers , Metals , Damping , Copper , Rotors , Density , Stainless steel , Stiffness , Vibration

Experimental Evaluation of Hybrid Damper Seals With Brush Elements: Effect of the Bristles on Power Dissipation and Rotordynamics

Steven E. Buchanan, John M. Vance

GT 2001; V004T03A015https://doi.org/10.1115/2001-GT-0248

View Articletitled, Experimental Evaluation of Hybrid Damper Seals With Brush Elements: Effect of the Bristles on Power Dissipation and Rotordynamics

Topics: Dampers , Damping , Dimensions , Energy dissipation , Friction , High pressure (Physics) , Leakage , Rotordynamics , Torque , Whirls

Rotordynamic and Bearing Upgrade of a High-Speed Turbocharger

Brian C. Pettinato, Pranabesh DeChoudhury

GT 2001; V004T03A016https://doi.org/10.1115/2001-GT-0249

View Articletitled, Rotordynamic and Bearing Upgrade of a High-Speed Turbocharger

Topics: Bearings , Turbochargers , Thrust bearings , Design , Journal bearings , Rotordynamics , Stability , Stress , Temperature , Testing

A Hydrostatic Bearing With Compressible Fluid for Broad Application

John S. Jacob, Donald E. Bently, John J. Yu

GT 2001; V004T03A017https://doi.org/10.1115/2001-GT-0250

View Articletitled, A Hydrostatic Bearing With Compressible Fluid for Broad Application

Topics: Bearings , Fluids , Hydrostatics , Gas bearings , Clearances (Engineering) , Dimensions , Gas flow , Heating , Testing

Experimental Study on the Vibration Control Capability of a Hybrid Squeeze Film Damper

Changsheng Zhu

GT 2001; V004T03A018https://doi.org/10.1115/2001-GT-0252

View Articletitled, Experimental Study on the Vibration Control Capability of a Hybrid Squeeze Film Damper

Topics: Dampers , Vibration control , Rotors , Clearances (Engineering) , Vibration , Hydrostatics , Steady state

Experimental Investigation of Misaligned Rotors

J. S. Rao, R. Sreenivas, A. Chawla

GT 2001; V004T03A019https://doi.org/10.1115/2001-GT-0253

View Articletitled, Experimental Investigation of Misaligned Rotors

Topics: Rotors

Study of Stator Structure Modeling for Rotor Dynamic Analysis

Masaharu Shinozaki, Osamu Funatogawa, Masao Kobayashi

GT 2001; V004T03A020https://doi.org/10.1115/2001-GT-0254

View Articletitled, Study of Stator Structure Modeling for Rotor Dynamic Analysis

Topics: Dynamic analysis , Modeling , Rotors , Stators , Engines , Vibration , Dynamics (Mechanics) , Aircraft engines , Design , Finite element methods

Transient Rotordynamic Modeling of Rolling Element Bearing Systems

A. Liew, N. S. Feng, E. J. Hahn

GT 2001; V004T03A021https://doi.org/10.1115/2001-GT-0255

View Articletitled, Transient Rotordynamic Modeling of Rolling Element Bearing Systems

Topics: Modeling , Rolling bearings , Transients (Dynamics) , Bearings , Clearances (Engineering) , Stress , Aircraft , Ball bearings , Deformation , Dynamics (Mechanics)

Optimum Design of Squeeze Film Dampers Supporting Multiple-Mode Rotors

A. El-Shafei, R. Y. Yakoub

GT 2001; V004T03A022https://doi.org/10.1115/2001-GT-0256

View Articletitled, Optimum Design of Squeeze Film Dampers Supporting Multiple-Mode Rotors

Topics: Dampers , Design , Rotors , Aircraft engines , Algorithms , Clearances (Engineering) , Optimization , Springs , Stiffness

Imbalance Response of a Rotor Supported on Flexure Pivot Tilting Pad Journal Bearings in Series With Integral Squeeze Film Dampers

Luis San Andrés, Oscar De Santiago

GT 2001; V004T03A023https://doi.org/10.1115/2001-GT-0257

View Articletitled, Imbalance Response of a Rotor Supported on Flexure Pivot Tilting Pad Journal Bearings in Series With Integral Squeeze Film Dampers

Topics: Bending (Stress) , Dampers , Journal bearings , Rotors , Bearings , Damping , Vibration , Compressors , Displacement , Fluid films

Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage: Part I — Phenomenological Identification and Classification

Björn Laumert, Hans Mårtensson, Torsten H. Fransson

GT 2001; V004T03A024https://doi.org/10.1115/2001-GT-0258

View Articletitled, Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage: Part I — Phenomenological Identification and Classification

Topics: Blades , Excitation , Turbines , Design , Pressure , Rotors , Shock (Mechanics) , Wakes , Computation , Flow (Dynamics)

Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage: Part II — Analytical Description and Quantification

Björn Laumert, Hans Mårtensson, Torsten H. Fransson

GT 2001; V004T03A025https://doi.org/10.1115/2001-GT-0259

View Articletitled, Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage: Part II — Analytical Description and Quantification

Topics: Blades , Excitation , Turbines , Pressure , Rotors , Torque , Computation , High pressure (Physics) , Spacetime

Numerical Unsteady Flow Analysis of a Turbine Stage With Extremely Large Blade Loads

Markus Jöcker, Francois X. Hillion, Torsten H. Fransson, Ulf Wåhlén

GT 2001; V004T03A026https://doi.org/10.1115/2001-GT-0260

View Articletitled, Numerical Unsteady Flow Analysis of a Turbine Stage With Extremely Large Blade Loads

Topics: Blades , Stress , Turbines , Unsteady flow , Rotors , Excitation , Design , Stators , Pressure , Chords (Trusses)

Excitation of Ring Vortex Production in Subsonic Jets by Sound Waves

Dieter E. Bohn, Ingo Balkowski

GT 2001; V004T03A027https://doi.org/10.1115/2001-GT-0261

View Articletitled, Excitation of Ring Vortex Production in Subsonic Jets by Sound Waves

Topics: Excitation , Jets , Sound waves , Vortices , Noise (Sound) , Turbulence , Pressure , Condensers (steam plant) , Density , Emissions

Experimental Study of Aerodynamic and Structural Damping in a Full-Scale Rotating Turbine

Jason J. Kielb, Reza S. Abhari

GT 2001; V004T03A028https://doi.org/10.1115/2001-GT-0262

View Articletitled, Experimental Study of Aerodynamic and Structural Damping in a Full-Scale Rotating Turbine

Topics: Damping , Turbines , Blades , Engines , Disks , Friction , High cycle fatigue , Torsion , Turbine components , Turbomachinery

Experimental and Numerical Study of Forced Response in a Full-Scale Rotating Turbine

Jason J. Kielb, Reza S. Abhari, Michael G. Dunn

GT 2001; V004T03A029https://doi.org/10.1115/2001-GT-0263

View Articletitled, Experimental and Numerical Study of Forced Response in a Full-Scale Rotating Turbine

Topics: Turbines , Pressure , Blades , Computational fluid dynamics , Rotors , Stators , Computation , Fluids , High cycle fatigue , Suction

Numerical Investigation of Blade Flutter at or Near Stall in Axial Flow Turbomachines

Wolfgang Höhn

GT 2001; V004T03A030https://doi.org/10.1115/2001-GT-0265

View Articletitled, Numerical Investigation of Blade Flutter at or Near Stall in Axial Flow Turbomachines

Topics: Axial flow , Blades , Flutter (Aerodynamics) , Turbomachinery , Flow (Dynamics) , Viscous flow , Compressors , Computation , Damping , Navier-Stokes equations

CFD Investigation of Aeromechanics

Peter D. Silkowski, Chae M. Rhie, George S. Copeland, James A. Eley, James M. Bleeg

GT 2001; V004T03A031https://doi.org/10.1115/2001-GT-0267

View Articletitled, CFD Investigation of Aeromechanics

Topics: Computational fluid dynamics , Flutter (Aerodynamics) , Blades , Cascades (Fluid dynamics) , Damping , Modeling

Multi-Blade Row Interactions in a Transonic Axial Compressor: Part I — Stator Particle Image Velocimetry (PIV) Investigation

A. J. Sanders, J. Papalia, S. Fleeter

GT 2001; V004T03A032https://doi.org/10.1115/2001-GT-0268

View Articletitled, Multi-Blade Row Interactions in a Transonic Axial Compressor: Part I — Stator Particle Image Velocimetry (PIV) Investigation

Topics: Blades , Compressors , Particulate matter , Stators , Wakes , Rotors , Flow (Dynamics) , Pressure , Axial flow , Design

Multi-Blade Row Interactions in a Transonic Axial Compressor: Part II — Rotor Wake Forcing Function and Stator Unsteady Aerodynamic Response

A. J. Sanders, S. Fleeter

GT 2001; V004T03A033https://doi.org/10.1115/2001-GT-0269

View Articletitled, Multi-Blade Row Interactions in a Transonic Axial Compressor: Part II — Rotor Wake Forcing Function and Stator Unsteady Aerodynamic Response

Topics: Blades , Compressors , Rotors , Stators , Wakes , Acoustics , Annulus , Fluctuations (Physics) , Aerodynamic flow , Airfoils

A Framework for Flutter Clearance of Aeroengine Blades

Asif Khalak

GT 2001; V004T03A034https://doi.org/10.1115/2001-GT-0270

View Articletitled, A Framework for Flutter Clearance of Aeroengine Blades

Topics: Blades , Clearances (Engineering) , Flutter (Aerodynamics) , Damping , Stability , Aeroelasticity , Density , Engines , Flight , Flow (Dynamics)

Prediction of Flutter and Inlet Distortion Driven Response of a Transonic Fan Rotor Using Phase-Lagged Boundary Conditions

H. D. Li, L. He

GT 2001; V004T03A035https://doi.org/10.1115/2001-GT-0272

View Articletitled, Prediction of Flutter and Inlet Distortion Driven Response of a Transonic Fan Rotor Using Phase-Lagged Boundary Conditions

Topics: Boundary-value problems , Flutter (Aerodynamics) , Rotors , Blades , Flow (Dynamics) , Shapes , Turbomachinery , Annulus , Computation , Design

Eigen Solutions of Grouped Turbo Blades Solved by the Generalized Differential Quadrature Method

J. H. Kuang, M. H. Hsu

GT 2001; V004T03A036https://doi.org/10.1115/2001-GT-0273

View Articletitled, Eigen Solutions of Grouped Turbo Blades Solved by the Generalized Differential Quadrature Method

Topics: Blades , Turbochargers , Eigenvalues , Partial differential equations

Forced Response of Turbine Engine Bladed Disks and Sensitivity to Harmonic Mistuning

J. A. Kenyon, J. H. Griffin

GT 2001; V004T03A037https://doi.org/10.1115/2001-GT-0274

View Articletitled, Forced Response of Turbine Engine Bladed Disks and Sensitivity to Harmonic Mistuning

Topics: Disks , Gas turbines , Annulus , Design , Fatigue , Magnification , Rotors , Shear (Mechanics) , Springs , Stiffness

A Parametric Study of a Cottage-Roof Damper and Comparison With Experimental Results

Martin H. Jareland

GT 2001; V004T03A038https://doi.org/10.1115/2001-GT-0275

View Articletitled, A Parametric Study of a Cottage-Roof Damper and Comparison With Experimental Results

Topics: Dampers , Roofs , Friction , Blades , Resonance , Simulation models , Stiffness , Stress , Centrifugal force , Damping

Reduced Order Modeling Techniques for Dynamic Analysis of Mistuned Multi-Stage Turbomachinery Rotors

Ronnie Bladh, Matthew P. Castanier, Christophe Pierre

GT 2001; V004T03A039https://doi.org/10.1115/2001-GT-0276

View Articletitled, Reduced Order Modeling Techniques for Dynamic Analysis of Mistuned Multi-Stage Turbomachinery Rotors

Topics: Dynamic analysis , Modeling , Rotors , Turbomachinery , Disks , Modal analysis , Blades , Dynamics (Mechanics) , Engineers , Finite element analysis

Effects of Multi-Stage Coupling and Disk Flexibility on Mistuned Bladed Disk Dynamics

Ronnie Bladh, Matthew P. Castanier, Christophe Pierre

GT 2001; V004T03A040https://doi.org/10.1115/2001-GT-0277

View Articletitled, Effects of Multi-Stage Coupling and Disk Flexibility on Mistuned Bladed Disk Dynamics

Topics: Disks , Dynamics (Mechanics) , Blades , Design , Excitation , Finite element analysis , Rotors

Computation of the Optimal Normal Load for a Mistuned and Frictionally Damped Bladed Disk Assembly Under Different Types of Excitation

D. Cha, A. Sinha

GT 2001; V004T03A041https://doi.org/10.1115/2001-GT-0278

View Articletitled, Computation of the Optimal Normal Load for a Mistuned and Frictionally Damped Bladed Disk Assembly Under Different Types of Excitation

Topics: Computation , Disks , Excitation , Manufacturing , Stress , Dampers , Blades , Friction , Random excitation , Statistics

Stress Redistribution for Increased Creep Life in the GE MS6001 B Second Stage Blade

Paul E. DiCristoforo, Mark Elledge

GT 2001; V004T03A042https://doi.org/10.1115/2001-GT-0279

View Articletitled, Stress Redistribution for Increased Creep Life in the GE MS6001 B Second Stage Blade

Topics: Blades , Creep , Stress , Deflection , Failure , Temperature , Airfoils , Design , Gas turbines , High cycle fatigue

Prediction of Bird Impact Pressures and Damage Using MSC/DYTRAN

T. J. Moffat, W. L. Cleghorn

GT 2001; V004T03A043https://doi.org/10.1115/2001-GT-0280

View Articletitled, Prediction of Bird Impact Pressures and Damage Using MSC/DYTRAN

Topics: Damage , Finite element analysis , Modeling , Physics , Robustness

The Coupled Longitudinal and Bending Vibrations on Stability in a Cracked Blade-Disk

B. W. Huang, J. H. Kuang

GT 2001; V004T03A044https://doi.org/10.1115/2001-GT-0281

View Articletitled, The Coupled Longitudinal and Bending Vibrations on Stability in a Cracked Blade-Disk

Topics: Blades , Disks , Stability , Vibration , Coriolis force , Dynamic stability , Fracture (Materials) , Galerkin method , Periodic structures , Rotating blades

Damage Assessment of Creep Tested and Thermally Aged Udimet 520 Using Acousto-Ultrasonics

Andrew L. Gyekenyesi, Harold E. Kautz, Wei Cao

GT 2001; V004T03A045https://doi.org/10.1115/2001-GT-0282

View Articletitled, Damage Assessment of Creep Tested and Thermally Aged Udimet 520 Using Acousto-Ultrasonics

Topics: Creep , Damage assessment , Ultrasonics , Nondestructive evaluation , Temperature , Stress , Alloys , Damage , Graphical user interfaces , Heat treating (Metalworking)

Crack Propagation in Gas Turbine Rotor Disks: Comparison of Experimental Results at Real Components With Fatigue Life Prediction

E. Maldfeld, M. Schödel, C. Berger

GT 2001; V004T03A046https://doi.org/10.1115/2001-GT-0284

View Articletitled, Crack Propagation in Gas Turbine Rotor Disks: Comparison of Experimental Results at Real Components With Fatigue Life Prediction

Topics: Crack propagation , Disks , Fatigue life , Gas turbines , Rotors , Fracture mechanics , Design , Forging , Fracture (Materials) , Stress

Approach to Unidirectional Coupled CFD – FEM Analysis of Axial Turbocharger Turbine Blades

D. Filsinger, J. Szwedowicz, O. Schäfer

GT 2001; V004T03A047https://doi.org/10.1115/2001-GT-0288

View Articletitled, Approach to Unidirectional Coupled CFD – FEM Analysis of Axial Turbocharger Turbine Blades

Topics: Computational fluid dynamics , Finite element methods , Finite element model , Turbine blades , Turbochargers , Disks , Excitation , Rotors , Turbines , Airfoils

Local/Global Effects of Mistuning on the Forced Response of Bladed Disks

Alejandro J. Rivas-Guerra, Marc P. Mignolet

GT 2001; V004T03A048https://doi.org/10.1115/2001-GT-0289

View Articletitled, Local/Global Effects of Mistuning on the Forced Response of Bladed Disks

Topics: Disks , Blades , Modeling

Estimation of Contact Stiffness and its Role in the Design of a Friction Damper

J. Szwedowicz, M. Kissel, B. Ravindra, R. Kellerer

GT 2001; V004T03A049https://doi.org/10.1115/2001-GT-0290

View Articletitled, Estimation of Contact Stiffness and its Role in the Design of a Friction Damper

Topics: Dampers , Design , Friction , Stiffness , Blades , Finite element analysis , Centrifugal force , Computation , Contact mechanics , Curve fitting

Nature of Vibratory Waves in Bladed Disks

Nicholas Klompas

GT 2001; V004T03A050https://doi.org/10.1115/2001-GT-0291

View Articletitled, Nature of Vibratory Waves in Bladed Disks

Topics: Disks , Waves , Blades , Whirls , Engines , Friction , Limit cycles , Resonance , Torque , Traveling waves

Analysis of the Worst Mistuning Patterns in Bladed Disc Assemblies

E. P. Petrov, D. J. Ewins

GT 2001; V004T03A051https://doi.org/10.1115/2001-GT-0292

View Articletitled, Analysis of the Worst Mistuning Patterns in Bladed Disc Assemblies

Topics: Disks , Finite element model , Resonance , Blades , Design , Excitation , Optimization

Optimization of Intentional Mistuning Patterns for the Reduction of the Forced Response Effects of Unintentional Mistuning: Formulation and Assessment

Byeong-Keun Choi, Jeff Lentz, Alejandro Rivas-Guerra, Marc P. Mignolet

GT 2001; V004T03A052https://doi.org/10.1115/2001-GT-0293

View Articletitled, Optimization of Intentional Mistuning Patterns for the Reduction of the Forced Response Effects of Unintentional Mistuning: Formulation and Assessment

Topics: Optimization , Disks , Blades , Engineering simulation , Excitation , Rotors , Simulation

Theory and Test Correlation for Laminate Stacking Factor Effect on Homopolar Bearing Stiffness

Andrew Kenny, Alan Palazzolo, Gerald T. Montague, Albert F. Kascak

GT 2001; V004T03A053https://doi.org/10.1115/2001-GT-0294

View Articletitled, Theory and Test Correlation for Laminate Stacking Factor Effect on Homopolar Bearing Stiffness

Topics: Bearings , Laminates , Stiffness , Magnetic bearings , Anisotropy , Permeability , Rotors , Stators

Fail Safe, High Temperature Magnetic Bearing for High Efficiency Gas Turbine Engine Applications

Alan Palazzolo, Gerald T. Montague, Yeonkyu Kim, Andrew Kenny, Randall Tucker, Uhn Joo Na, Shuliang Lei, Nathan Lingenfelter, Andy Provenza, Albert F. Kascak

GT 2001; V004T03A054https://doi.org/10.1115/2001-GT-0295

View Articletitled, Fail Safe, High Temperature Magnetic Bearing for High Efficiency Gas Turbine Engine Applications

Topics: Gas turbines , High temperature , Magnetic bearings , Actuators , Control algorithms , Design , Failure , Stiffness

Friction Damping of Interlocked Vane Segments: Experimental Results

T. Berruti, S. Filippi, M. M. Gola, S. Salvano

GT 2001; V004T03A055https://doi.org/10.1115/2001-GT-0432

View Articletitled, Friction Damping of Interlocked Vane Segments: Experimental Results

Topics: Damping , Friction , Aircraft engines , Energy dissipation , Experimental methods , Numerical analysis , Stators

Development of High-Speed Gas Bearings for High-Power-Density Micro-Devices

F. F. Ehrich, S. A. Jacobson

GT 2001; V004T03A056https://doi.org/10.1115/2001-GT-0478

View Articletitled, Development of High-Speed Gas Bearings for High-Power-Density Micro-Devices

Topics: Density , Gas bearings , Bearings , Rotors , Turbomachinery , Bearing design , Bonding , Crystals , Design , Etching

Contact Stresses in Dovetail Attachments: Alleviation via Precision Crowning

G. B. Sinclair, N. G. Cormier

GT 2001; V004T03A057https://doi.org/10.1115/2001-GT-0550

View Articletitled, Contact Stresses in Dovetail Attachments: Alleviation via Precision Crowning

Topics: Stress , Hoop stress , Finite element analysis , Blades , Fatigue , Fluctuations (Physics)

Experimental Self-Sensing Results for a Magnetic Bearing

Dominick T. Montie, Eric H. Maslen

GT 2001; V004T03A058https://doi.org/10.1115/2001-GT-0565

View Articletitled, Experimental Self-Sensing Results for a Magnetic Bearing

Topics: Magnetic bearings , Hardware , Actuators , Bearings , Signals

Model Identification of a Rotor With Magnetic Bearings

José A. Vázquez, Eric H. Maslen, Hyeong-Joon Ahn, Dong-Chul Han

GT 2001; V004T03A059https://doi.org/10.1115/2001-GT-0566

View Articletitled, Model Identification of a Rotor With Magnetic Bearings

Topics: Magnetic bearings , Rotors , Wire , Errors , Frequency response , Sensors , Stiffness

Dynamic Modeling and Validation of a Lorentz, Self Bearing Motor Test Rig

Lyndon S. Stephens

GT 2001; V004T03A060https://doi.org/10.1115/2001-GT-0567

View Articletitled, Dynamic Modeling and Validation of a Lorentz, Self Bearing Motor Test Rig

Topics: Bearings , Dynamic modeling , Engines , Motors , Dynamic models , Torque , Construction , Design , Permanent magnets , Rotors

High-Temperature Fatigue Properties of Single Crystal Superalloys in Air and Hydrogen

Nagaraj K. Arakere

GT 2001; V004T03A061https://doi.org/10.1115/2001-GT-0585

View Articletitled, High-Temperature Fatigue Properties of Single Crystal Superalloys in Air and Hydrogen

Topics: Crystals , Fatigue properties , High temperature , Hydrogen , Superalloys , Blades , Temperature , Fracture (Materials) , Fatigue , Fatigue life

The Dynamics of a Cracked Rotor With an Active Magnetic Bearing

Changsheng Zhu, David A. Robb, David J. Ewins

GT 2001; V004T03A062https://doi.org/10.1115/2001-GT-0595

View Articletitled, The Dynamics of a Cracked Rotor With an Active Magnetic Bearing

Topics: Dynamics (Mechanics) , Magnetic bearings , Rotors , Fracture (Materials) , Control equipment , Stability , Adaptive control , Control systems , Design , Vibration

Controls, Diagnostics and Instrumentation

A Unique Correction Technique for Evaporative Gas Turbine (EvGT) Parameters

Ehsan Mesbahi, Mohsen Assadi, Tord Torisson, Torbjörn Lindquist

GT 2001; V004T04A001https://doi.org/10.1115/2001-GT-0008

View Articletitled, A Unique Correction Technique for Evaporative Gas Turbine (EvGT) Parameters

Topics: Gas turbines , Artificial neural networks , Fluids , Modeling , Steam , Water

A Novel Correction Technique for Simple Gas Turbine Parameters

Mohsen Assadi, Ehsan Mesbahi, Tord Torisson, Torbjörn Lindquist, Jaime Arriagada, Pernilla Olausson

GT 2001; V004T04A002https://doi.org/10.1115/2001-GT-0009

View Articletitled, A Novel Correction Technique for Simple Gas Turbine Parameters

Topics: Gas turbines , Artificial neural networks , Engines , Heat , Power stations

Uncertainty Reduction in Gas Turbine Performance Diagnostics by Accounting for Humidity Effects

K. Mathioudakis, A. Tsalavoutas

GT 2001; V004T04A003https://doi.org/10.1115/2001-GT-0010

View Articletitled, Uncertainty Reduction in Gas Turbine Performance Diagnostics by Accounting for Humidity Effects

Topics: Accounting , Gas turbines , Uncertainty , Industrial gases , Turbines , Computers , Engines , Temperature

A Parametric Investigation of the Diagnostic Ability of Probabilistic Neural Networks on Turbofan Engines

C. Romessis, A. Stamatis, K. Mathioudakis

GT 2001; V004T04A004https://doi.org/10.1115/2001-GT-0011

View Articletitled, A Parametric Investigation of the Diagnostic Ability of Probabilistic Neural Networks on Turbofan Engines

Topics: Artificial neural networks , Engines , Turbofans , Architecture , Gas turbines , Noise (Sound)

Advanced Test Cell Diagnostics for Gas Turbine Engines (USAF Automated Jet Engine Test Strategy – AJETS)

Michael J. Roemer, Gregory J. Kacprzynski, Michael Schoeller, Ron Howe, Richard Friend

GT 2001; V004T04A005https://doi.org/10.1115/2001-GT-0012

View Articletitled, Advanced Test Cell Diagnostics for Gas Turbine Engines (USAF Automated Jet Engine Test Strategy – AJETS)

Topics: Air Force , Gas turbines , Jet engines , Engines , Design , Computer software , Instrumentation , Maintenance , Sensors

Application of Fuzzy Logic for Fault Isolation of Jet Engines

Ranjan Ganguli

GT 2001; V004T04A006https://doi.org/10.1115/2001-GT-0013

View Articletitled, Application of Fuzzy Logic for Fault Isolation of Jet Engines

Topics: Fuzzy logic , Jet engines , Uncertainty , Accounting , Compressors , Engines , Exhaust systems , Flow (Dynamics) , Fuels , Gas turbines

Data Rectification and Detection of Trend Shifts in Jet Engine Gas Path Measurements Using Median Filters and Fuzzy Logic

Ranjan Ganguli

GT 2001; V004T04A007https://doi.org/10.1115/2001-GT-0014

View Articletitled, Data Rectification and Detection of Trend Shifts in Jet Engine Gas Path Measurements Using Median Filters and Fuzzy Logic

Topics: Filters , Fuzzy logic , Jet engines , Engines , Noise (Sound) , Signals , Filtration , Gas turbines , Scalars

ICEMS: Intelligent Condition-Based Engine/Equipment Management System (www.icems.com)

Link Jaw, Yu-tsung (Jim) Wang, Richard Friend

GT 2001; V004T04A008https://doi.org/10.1115/2001-GT-0015

View Articletitled, ICEMS: Intelligent Condition-Based Engine/Equipment Management System (www.icems.com)

Topics: Engines , Air Force , Machinery , Algorithms , Artificial intelligence , Computer software , Condition monitoring , Failure , Gas turbines , Maintenance

Model Based Control Concepts for Jet Engines

Klaus Lietzau, Andreas Kreiner

GT 2001; V004T04A009https://doi.org/10.1115/2001-GT-0016

View Articletitled, Model Based Control Concepts for Jet Engines

Topics: Jet engines , Engines , Control systems , Safety , Compressors , Engineering prototypes , Flight , Fuel efficiency , High pressure (Physics) , Instrumentation

Dynamic Simulation of Full Start-Up Procedure of Heavy Duty Gas Turbines

J. H. Kim, T. W. Song, T. S. Kim, S. T. Ro

GT 2001; V004T04A010https://doi.org/10.1115/2001-GT-0017

View Articletitled, Dynamic Simulation of Full Start-Up Procedure of Heavy Duty Gas Turbines

Topics: Gas turbines , Simulation , Compressors , Energy generation , Inlet guide vanes , Transient analysis

Multivariable Modelling of Gas Turbine Dynamics

Ceri Evans, Neophytos Chiras, Patrick Guillaume, David Rees

GT 2001; V004T04A011https://doi.org/10.1115/2001-GT-0018

View Articletitled, Multivariable Modelling of Gas Turbine Dynamics

Topics: Dynamics (Mechanics) , Gas turbines , Modeling , Engines , Aircraft , Fuels , Physics

Global Nonlinear Modelling of Gas Turbine Dynamics Using NARMAX Structures

Neophytos Chiras, Ceri Evans, David Rees

GT 2001; V004T04A012https://doi.org/10.1115/2001-GT-0019

View Articletitled, Global Nonlinear Modelling of Gas Turbine Dynamics Using NARMAX Structures

Topics: Dynamics (Mechanics) , Gas turbines , Modeling , Signals , Aircraft , Engines , Frequency-domain analysis

Simulation of the WR-21 Advanced Cycle Engine

Benoit Biraud, Arnaud Despierre, Stephane Gayraud

GT 2001; V004T04A013https://doi.org/10.1115/2001-GT-0020

View Articletitled, Simulation of the WR-21 Advanced Cycle Engine

Topics: Cycles , Engines , Simulation , Gas turbines , Fuel consumption , Optimization , Propulsion systems , Risk mitigation , Safety , Stability

Code-in-the-Loop Simulation for Embedded Software Development

Link C. Jaw, Dong N. Wu

GT 2001; V004T04A014https://doi.org/10.1115/2001-GT-0021

View Articletitled, Code-in-the-Loop Simulation for Embedded Software Development

Topics: Simulation , Software development , Computer software , Hardware , Risk , Aircraft engines , Computer simulation , Control equipment , Design , Engines

A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force Measurements in Rotating Machinery Using Magnetic Bearings

Daniel O. Baun, Eric H. Maslen, Carl R. Knospe, Ronald D. Flack

GT 2001; V004T04A015https://doi.org/10.1115/2001-GT-0023

View Articletitled, A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force Measurements in Rotating Machinery Using Magnetic Bearings

Topics: Aerodynamics , Control equipment , Fluid-dynamic forces , Machinery , Magnetic bearings , Rotor vibration , Rotors , Signals , Trajectories (Physics) , Vibration

Industrial Trent Dry Low Emissions Gas Fuel Control System

Jeff Gessaman, Andreas Goetz

GT 2001; V004T04A016https://doi.org/10.1115/2001-GT-0024

View Articletitled, Industrial Trent Dry Low Emissions Gas Fuel Control System

Topics: Control systems , Emissions , Gaseous fuels , Flow (Dynamics) , Fuels , Valves , Vents , Combustion chambers , Flames , Flow measurement

Hybrid Magnetic/Foil Bearing System for an Oil-Free Thrust Bearing Test Rig

Thomas E. Russell, III, Crystal Heshmat, Dennis Locke

GT 2001; V004T04A017https://doi.org/10.1115/2001-GT-0025

View Articletitled, Hybrid Magnetic/Foil Bearing System for an Oil-Free Thrust Bearing Test Rig

Topics: Foil bearings , Thrust bearings , Stress , Control systems , Magnetic materials , Rotors , Damping , Design , Failure , High temperature

Simultaneous Short and Long Wavelength Infrared Pyrometer Measurements in a Heavy Duty Gas Turbine

J. R. Markham, H. M. Latvakoski, S. L. F. Frank, M. Lüdtke

GT 2001; V004T04A018https://doi.org/10.1115/2001-GT-0026

View Articletitled, Simultaneous Short and Long Wavelength Infrared Pyrometer Measurements in a Heavy Duty Gas Turbine

Topics: Gas turbines , Pyrometers , Wavelength , Engines , Coatings , Combustion , Manufacturing , Metal surfaces , Temperature , Temperature measurement

Force Measurements in Magnetic Bearings Using Fiber Optic Strain Gauges

Stephen G. Raymer, Dara W. Childs

GT 2001; V004T04A019https://doi.org/10.1115/2001-GT-0027

View Articletitled, Force Measurements in Magnetic Bearings Using Fiber Optic Strain Gauges

Topics: Fibers , Force measurement , Magnetic bearings , Strain gages , Bearings , Signals , Poles (Building) , Stress , Accuracy and precision , Calibration

Rolling Element Bearing Defect Detection and Diagnostics Using Displacement Transducers

John J. Yu, Donald E. Bently, Paul Goldman, Kenwood P. Dayton, Brandon G. Van Slyke

GT 2001; V004T04A020https://doi.org/10.1115/2001-GT-0028

View Articletitled, Rolling Element Bearing Defect Detection and Diagnostics Using Displacement Transducers

Topics: Displacement , Flaw detection , Rolling bearings , Transducers , Deflection , Bearings , Accelerometers , Rollers , Signals , Stress

Improved Vibration Monitoring on Aeroderivative Gas Generators With Internal Transducers

Peyton Swan, Robert G. Betts

GT 2001; V004T04A021https://doi.org/10.1115/2001-GT-0030

View Articletitled, Improved Vibration Monitoring on Aeroderivative Gas Generators With Internal Transducers

Topics: Generators , Transducers , Vibration , Bearings , Condition monitoring , Design , Engines , Gas turbines , Machinery , Pipelines

Finite Element Modeling of the Eddy-Current Inspection of Land-Based Gas Turbine Blades

Hiroyuki Fukutomi, Takashi Ogata

GT 2001; V004T04A022https://doi.org/10.1115/2001-GT-0031

View Articletitled, Finite Element Modeling of the Eddy-Current Inspection of Land-Based Gas Turbine Blades

Topics: Blades , Eddy current testing , Finite element analysis , Gas turbines , Modeling , Fracture (Materials) , Combined cycle power stations , Combined cycles , Eddies (Fluid dynamics) , Eddy currents (Electricity)

Improved Gas Turbine Performance Prediction Using a Map Based Fleet Analysis

Klaus Werner

GT 2001; V004T04A023https://doi.org/10.1115/2001-GT-0032

View Articletitled, Improved Gas Turbine Performance Prediction Using a Map Based Fleet Analysis

Topics: Gas turbines , Compressors , Computer software , Cycles , Design , Economics , Electricity (Physics) , Steady state , Turbines

On-Line Combustion Turbine Reliability Monitoring System Field Evaluation Results

Michael A. Pollard, Leonard Angello, Tom Christiansen

GT 2001; V004T04A024https://doi.org/10.1115/2001-GT-0033

View Articletitled, On-Line Combustion Turbine Reliability Monitoring System Field Evaluation Results

Topics: Combustion , Monitoring systems , Reliability , Turbines , Blades , Coating processes , Coatings , Compressors , Fatigue life , Power station control systems

Turbine Engine Performance Improvements: A Proactive Approach

Zane D. Gastineau

GT 2001; V004T04A025https://doi.org/10.1115/2001-GT-0371

View Articletitled, Turbine Engine Performance Improvements: A Proactive Approach

Topics: Gas turbines , Design , Engines , Engine design , Engineers , Flight

Use of an Extractive Laser Probe for Time-Resolved Mixture Fraction Measurements in a 9 ATM Gas Turbine Fuel Injector

James W. Girard, Robert W. Dibble, Leonel O. Arellano, Kenneth O. Smith

GT 2001; V004T04A026https://doi.org/10.1115/2001-GT-0372

View Articletitled, Use of an Extractive Laser Probe for Time-Resolved Mixture Fraction Measurements in a 9 ATM Gas Turbine Fuel Injector

Topics: Fuel injectors , Gas turbines , Lasers , Probes , Emissions , Fluctuations (Physics) , Fuels , Nitrogen oxides , Oscillations , Pressure

The Use of Electrostatic Charge Measurements as an Early Warning of Distress in Heavy-Duty Gas Turbines

G. L. Lapini, M. Zippo, G. Tirone

GT 2001; V004T04A027https://doi.org/10.1115/2001-GT-0373

View Articletitled, The Use of Electrostatic Charge Measurements as an Early Warning of Distress in Heavy-Duty Gas Turbines

Topics: Gas turbines , Combustion , Engines , Exhaust systems , Machinery , Monitoring systems , Coating processes , Coatings , Combustion chambers , Ducts

Development of a Temporally Modulated Fuel Injector With Controlled Spray Dynamics

Hyeonsoo Chang, Chad Sipperley, David Nelson, Chris Edwards

GT 2001; V004T04A028https://doi.org/10.1115/2001-GT-0454

View Articletitled, Development of a Temporally Modulated Fuel Injector With Controlled Spray Dynamics

Topics: Dynamics (Mechanics) , Fuel injectors , Sprays , Fuels , Flow (Dynamics) , Combustion , Actuators , Acoustics , Combustion chambers , Control systems

High Response Valve for Active Combustion Control

Dong N. Wu, Joseph W. Michalski, Link C. Jaw, Kenneth Semega

GT 2001; V004T04A029https://doi.org/10.1115/2001-GT-0455

View Articletitled, High Response Valve for Active Combustion Control

Topics: Combustion , Valves , Engineering prototypes , Flow (Dynamics) , Fuels , Gas turbines , Piezoelectric actuators

Passive Fault Tolerance for a Magnetic Bearing Under PID Control

Benjamin Choi, Andrew Provenza

GT 2001; V004T04A030https://doi.org/10.1115/2001-GT-0456

View Articletitled, Passive Fault Tolerance for a Magnetic Bearing Under PID Control

Topics: Fault tolerance , Magnetic bearings , Poles (Building) , Rotors , Failure , Bearings , Control equipment , Stability , Corrective actions , Damping

Application of a High Resolution Turbine Pyrometer to Heavy Duty Gas Turbines

Stefan L. F. Frank, Tim O. Holt, Holger Eisenlohr, Dieter Raake

GT 2001; V004T04A031https://doi.org/10.1115/2001-GT-0577

View Articletitled, Application of a High Resolution Turbine Pyrometer to Heavy Duty Gas Turbines

Topics: Gas turbines , Pyrometers , Resolution (Optics) , Turbines , Probes , Stress , Analytical methods , Combustion chambers , Heat transfer , Radiation (Physics)

Development and Evaluation of a High Resolution Turbine Pyrometer System

Torsten Eggert, Bjoern Schenk, Helmut Pucher

GT 2001; V004T04A032https://doi.org/10.1115/2001-GT-0578

View Articletitled, Development and Evaluation of a High Resolution Turbine Pyrometer System

Topics: Pyrometers , Resolution (Optics) , Turbines , Gas turbines , Rotors , Energy generation , Engineering prototypes , Industrial gases , Measurement uncertainty , Reliability

A Review of Purge Air Designs for Aeroengine Based Optical Pyrometers

Clive I. Kerr, Paul C. Ivey

GT 2001; V004T04A033https://doi.org/10.1115/2001-GT-0580

View Articletitled, A Review of Purge Air Designs for Aeroengine Based Optical Pyrometers

Topics: Pyrometers , Engines , Lenses (Optics) , Turbine blades , Algorithms , Blades , Compressors , Contamination , Decision making , Maintenance

Education

Graphical Spreadsheets as Convenient Tools for Turbomachinery Education

Timothy F. Miller

GT 2001; V004T05A001https://doi.org/10.1115/2001-GT-0105

View Articletitled, Graphical Spreadsheets as Convenient Tools for Turbomachinery Education

Topics: Education , Turbomachinery , Design , Students , Compressors , Computer software , Engineering education , Engineers , Inflow , Pumps

Using Design to Teach Thermodynamic Cycles: Designing a 250 MW Steam Power Plant Using the Rankine Cycle

Ken Van Treuren, Nicole DeJong

GT 2001; V004T05A002https://doi.org/10.1115/2001-GT-0106

View Articletitled, Using Design to Teach Thermodynamic Cycles: Designing a 250 MW Steam Power Plant Using the Rankine Cycle

Topics: Design , Rankine cycle , Thermal power stations , Thermodynamic cycles , Students , Energy generation , Cycles , Computer software , Optimization , Teams

Developing Engineering Leadership Skills

Scott T. Cloyd, Richard J. DiCavallucci

GT 2001; V004T05A003https://doi.org/10.1115/2001-GT-0467

View Articletitled, Developing Engineering Leadership Skills

Topics: Leadership

Career Opportunities in Power Generation

Scott T. Cloyd

GT 2001; V004T05A004https://doi.org/10.1115/2001-GT-0469

View Articletitled, Career Opportunities in Power Generation

Topics: Energy generation , Engineers , Fossil fuels , Power stations , Steam turbines

IGTI Scholar Award

Convective Heat Transfer and Aerodynamics in Axial Flow Turbines

Michael G. Dunn

GT 2001; V004T06A001https://doi.org/10.1115/2001-GT-0506

View Articletitled, Convective Heat Transfer and Aerodynamics in Axial Flow Turbines

Topics: Aerodynamics , Axial flow , Convection , Turbines , Heat transfer , Blades , Pressure , Combustion chambers , Cooling , Boundary-value problems