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D. J. Ewins
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Proceedings Papers

Multi-Dimensional Directional Spectrograms and Campbell (ZMOD) Diagrams for Rotating Machinery

I. Bucher, D. J. Ewins, D. A. Robb, P. Schmiechen
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1327-1334, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0532
https://doi.org/10.1115/DETC1995-0532
View Paper titled, Multi-Dimensional Directional Spectrograms and Campbell (ZMOD) Diagrams for Rotating Machinery
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Topics: Machinery, Vibration, Sensors, Signals, Wavelength, Resolution (Optics), Rotating disks, Rotation
Proceedings Papers

Excitation of Arbitrary Displacement/Velocity Conditions in Rotationally Periodic Structures

P. Schmiechen, D. J. Ewins, I. Bucher
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1353-1360, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0535
https://doi.org/10.1115/DETC1995-0535
View Paper titled, Excitation of Arbitrary Displacement/Velocity Conditions in Rotationally Periodic Structures
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Topics: Displacement, Excitation, Periodic structures, Engineering simulation, Simulation, Standing waves, Waves, Algorithms, Mode shapes, Testing
Proceedings Papers

Automatic Selection of Parameters for Updating Procedures

N. Imamovic, D. J. Ewins
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT10A016, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4153
https://doi.org/10.1115/DETC97/VIB-4153
View Paper titled, Automatic Selection of Parameters for Updating Procedures
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Topics: Optimization, Structures
Proceedings Papers

Analysis of the Worst Mistuning Patterns in Bladed Disc Assemblies

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T03A051, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0292
https://doi.org/10.1115/2001-GT-0292
View Paper titled, Analysis of the Worst Mistuning Patterns in Bladed Disc Assemblies
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Topics: Disks, Finite element model, Resonance, Blades, Design, Excitation, Optimization
Proceedings Papers

Effects of Contact Interface Parameters on Vibration of Turbine Bladed Disks With Underplatform Dampers

C. W. Schwingshackl, E. P. Petrov, D. J. Ewins
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 867-876, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45699
https://doi.org/10.1115/GT2011-45699
View Paper titled, Effects of Contact Interface Parameters on Vibration of Turbine Bladed Disks With Underplatform Dampers
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Topics: Dampers, Disks, Turbines, Vibration, Blades, Friction, Modeling, Computer software, Damping, Design
Journal Articles

Effects of Contact Interface Parameters on Vibration of Turbine Bladed Disks With Underplatform Dampers

C. W. Schwingshackl, E. P. Petrov, D. J. Ewins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2012, 134(3): 032507.
https://doi.org/10.1115/1.4004721
Published Online: January 9, 2012
View Article titled, Effects of Contact Interface Parameters on Vibration of Turbine Bladed Disks With Underplatform Dampers
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Topics: Blades, Dampers, Disks, Friction, Stress, Turbines, Modeling, Vibration, Damping, Stiffness
Journal Articles

Prediction of Vibration Response Levels of Mistuned Integral Bladed Disks (Blisks): Robustness Studies

Y.-J. Chan, D. J. Ewins
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Briefs
J. Turbomach. July 2012, 134(4): 044501.
https://doi.org/10.1115/1.4003646
Published Online: July 19, 2011
View Article titled, Prediction of Vibration Response Levels of Mistuned Integral Bladed Disks (Blisks): Robustness Studies
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Topics: Algorithms, Blades, Disks, Errors, Excitation, Mode shapes, Robustness, Vibration, Damping, Compressors
Journal Articles

The Amplification of Vibration Response Levels of Mistuned Bladed Disks: Its Consequences and Its Distribution in Specific Situations

Y.-J. Chan, D. J. Ewins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 102502.
https://doi.org/10.1115/1.4003021
Published Online: April 28, 2011
View Article titled, The Amplification of Vibration Response Levels of Mistuned Bladed Disks: Its Consequences and Its Distribution in Specific Situations
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Topics: Blades, Damping, Disks, Excitation, Vibration
Proceedings Papers

Validation of Test Rig Measurements and Prediction Tools for Friction Interface Modelling

C. W. Schwingshackl, E. P. Petrov, D. J. Ewins
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 1015-1024, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23274
https://doi.org/10.1115/GT2010-23274
View Paper titled, Validation of Test Rig Measurements and Prediction Tools for Friction Interface Modelling
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Topics: Friction, Modeling, Blades, Dampers, Gas turbines, Pressure, Stiffness, Stress concentration, Structural dynamics
Journal Articles

A Comprehensive Procedure to Estimate the Probability of Extreme Vibration Levels Due to Mistuning

Y.-J. Chan, D. J. Ewins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2010, 132(11): 112505.
https://doi.org/10.1115/1.4001065
Published Online: August 12, 2010
View Article titled, A Comprehensive Procedure to Estimate the Probability of Extreme Vibration Levels Due to Mistuning
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Topics: Probability, Simulation, Blades, Optimization, Vibration, Entropy, Gradient methods, Curve fitting
Proceedings Papers

A Comprehensive Set of Procedures to Estimate the Probability of Extreme Vibration Levels Due to Mistuning

Y.-J. Chan, D. J. Ewins
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 211-219, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59088
https://doi.org/10.1115/GT2009-59088
View Paper titled, A Comprehensive Set of Procedures to Estimate the Probability of Extreme Vibration Levels Due to Mistuning
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Topics: Probability, Vibration, Curve fitting, Disks, Engineering simulation, Simulation, Surface roughness
Proceedings Papers

Robust Strategies for Forced Response Reduction of Bladed Discs Based on Large Mistuning Concept

M. Nikolic, E. P. Petrov, D. J. Ewins
Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 285-295, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27183
https://doi.org/10.1115/GT2007-27183
View Paper titled, Robust Strategies for Forced Response Reduction of Bladed Discs Based on Large Mistuning Concept
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Topics: Disks, Reliability, Robustness, Statistics, Uncertainty analysis
Proceedings Papers

Analytical Formulation of Friction Interface Elements for Analysis of Nonlinear Multi-Harmonic Vibrations of Bladed Discs

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2002, Volume 4: Turbo Expo 2002, Parts A and B, 899-908, June 3–6, 2002
Publisher: American Society of Mechanical Engineers
Paper No: GT2002-30325
https://doi.org/10.1115/GT2002-30325
View Paper titled, Analytical Formulation of Friction Interface Elements for Analysis of Nonlinear Multi-Harmonic Vibrations of Bladed Discs
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Topics: Disks, Friction, Vibration, Stiffness, Computation, Separation (Technology), Stability, Stress
Proceedings Papers

Generic Friction Models for Time-Domain Vibration Analysis of Bladed Discs

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 223-233, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38475
https://doi.org/10.1115/GT2003-38475
View Paper titled, Generic Friction Models for Time-Domain Vibration Analysis of Bladed Discs
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Topics: Disks, Friction, Vibration analysis, Stress, Anisotropy, Vibration, Blades, Numerical analysis, Separation (Technology), Sliding friction
Proceedings Papers

Method for Analysis of Nonlinear Multiharmonic Vibrations of Mistuned Bladed Discs With Scatter of Contact Interface Characteristics

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 385-395, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53891
https://doi.org/10.1115/GT2004-53891
View Paper titled, Method for Analysis of Nonlinear Multiharmonic Vibrations of Mistuned Bladed Discs With Scatter of Contact Interface Characteristics
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Topics: Disks, Electromagnetic scattering, Vibration, Condensation, Finite element model, Blades, Dampers, Degrees of freedom, High pressure (Physics), Linear vibration
Proceedings Papers

Effects of Damping and Varying Contact Area at Blade-Disc Joints in Forced Response Analysis of Bladed Disc Assemblies

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2005, Volume 4: Turbo Expo 2005, 495-504, June 6–9, 2005
Publisher: American Society of Mechanical Engineers
Paper No: GT2005-68936
https://doi.org/10.1115/GT2005-68936
View Paper titled, Effects of Damping and Varying Contact Area at Blade-Disc Joints in Forced Response Analysis of Bladed Disc Assemblies
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Topics: Blades, Damping, Disks, Friction, Stress, Excitation, Finite element model
Proceedings Papers

Coriolis Forces in Forced Response Analysis of Mistuned Bladed Discs

M. Nikolic, E. P. Petrov, D. J. Ewins
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 821-831, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90315
https://doi.org/10.1115/GT2006-90315
View Paper titled, Coriolis Forces in Forced Response Analysis of Mistuned Bladed Discs
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Topics: Coriolis force, Disks, Blades, Vibration
Proceedings Papers

Advanced Modelling of Underplatform Friction Dampers for Analysis of Bladed Disc Vibration

E. P. Petrov, D. J. Ewins
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 769-778, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90146
https://doi.org/10.1115/GT2006-90146
View Paper titled, Advanced Modelling of Underplatform Friction Dampers for Analysis of Bladed Disc Vibration
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Topics: Dampers, Disks, Friction, Modeling, Vibration, Dynamic analysis, Finite element model, Inertia (Mechanics), Stick-slip, Stress
Journal Articles

Robust Strategies for Forced Response Reduction of Bladed Disks Based on Large Mistuning Concept

M. Nikolic, E. P. Petrov, D. J. Ewins
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2008, 130(2): 022501.
https://doi.org/10.1115/1.2799524
Published Online: January 22, 2008
View Article titled, Robust Strategies for Forced Response Reduction of Bladed Disks Based on Large Mistuning Concept
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Topics: Blades, Disks, Robustness, Excitation
Journal Articles

Coriolis Forces in Forced Response Analysis of Mistuned Bladed Disks

M. Nikolic, E. P. Petrov, D. J. Ewins
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 730–739.
https://doi.org/10.1115/1.2720866
Published Online: August 15, 2006
View Article titled, Coriolis Forces in Forced Response Analysis of Mistuned Bladed Disks
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Topics: Blades, Coriolis force, Disks, Vibration