An integrated experimental-numerical study of forced response for a mistuned bladed disk has been performed. A full chain for the predictive forced response analysis has been developed including data exchange between the computational fluid dynamics code and a code for the prediction of the nonlinear forced response for a bladed disk. The experimental measurements are performed at a full-scale single stage test rig with excitation by aerodynamic forces from gas flow. The numerical modeling approaches and the test rig setup are discussed. Comparison of experimentally measured and predicted values of blade resonance frequencies and response levels for a mistuned bladed disk without dampers is performed. A good correspondence between frequencies at which individual blades have maximum response levels is achieved. The effects of structural damping and underplatform damper parameters on amplitudes and resonance frequencies of the bladed disk are explored. It is shown that the underplatform damper significantly reduces scatters in values of the individual blade frequencies and maximum forced response levels.
Skip Nav Destination
e-mail: y.petrov@imperial.ac.uk
e-mail: l.di.mare@imperial.ac.uk
e-mail: holger.hennings@dlr.de
Article navigation
Research Papers
Forced Response of Mistuned Bladed Disks in Gas Flow: A Comparative Study of Predictions and Full-Scale Experimental Results
Evgeny Petrov,
Evgeny Petrov
Department of Mechanical Engineering,
e-mail: y.petrov@imperial.ac.uk
Imperial College London
, Exhibition Road, SW7 2AZ, UK
Search for other works by this author on:
Luca Di Mare,
Luca Di Mare
Department of Mechanical Engineering,
e-mail: l.di.mare@imperial.ac.uk
Imperial College London
, Exhibition Road, SW7 2AZ, UK
Search for other works by this author on:
Holger Hennings,
Holger Hennings
German Aerospace Center,
e-mail: holger.hennings@dlr.de
Institute of Aeroelasticity
, Bunsenstrasse 10, Göttingen, Germany
Search for other works by this author on:
Robert Elliott
Robert Elliott
Search for other works by this author on:
Evgeny Petrov
Department of Mechanical Engineering,
Imperial College London
, Exhibition Road, SW7 2AZ, UKe-mail: y.petrov@imperial.ac.uk
Luca Di Mare
Department of Mechanical Engineering,
Imperial College London
, Exhibition Road, SW7 2AZ, UKe-mail: l.di.mare@imperial.ac.uk
Holger Hennings
German Aerospace Center,
Institute of Aeroelasticity
, Bunsenstrasse 10, Göttingen, Germanye-mail: holger.hennings@dlr.de
Robert Elliott
J. Eng. Gas Turbines Power. May 2010, 132(5): 052504 (10 pages)
Published Online: March 5, 2010
Article history
Received:
April 8, 2009
Revised:
April 15, 2009
Online:
March 5, 2010
Published:
March 5, 2010
Citation
Petrov, E., Di Mare, L., Hennings, H., and Elliott, R. (March 5, 2010). "Forced Response of Mistuned Bladed Disks in Gas Flow: A Comparative Study of Predictions and Full-Scale Experimental Results." ASME. J. Eng. Gas Turbines Power. May 2010; 132(5): 052504. https://doi.org/10.1115/1.3205031
Download citation file:
Get Email Alerts
Image-based flashback detection in a hydrogen-fired gas turbine using a convolutional autoencoder
J. Eng. Gas Turbines Power
Fuel Thermal Management and Injector Part Design for LPBF Manufacturing
J. Eng. Gas Turbines Power
An investigation of a multi-injector, premix/micromix burner burning pure methane to pure hydrogen
J. Eng. Gas Turbines Power
Related Articles
A Method for Forced Response Analysis of Mistuned Bladed Disks With Aerodynamic Effects Included
J. Eng. Gas Turbines Power (June,2010)
The Effects of Aerodynamic Asymmetric Perturbations on Forced Response of Bladed Disks
J. Turbomach (October,2009)
Reduction of Forced Response Levels for Bladed Disks by Mistuning: Overview of the Phenomenon
J. Eng. Gas Turbines Power (July,2011)
Aeroelastic Analysis of Rotors With Flexible Disks and Alternate Blade Mistuning
J. Turbomach (January,2009)
Related Proceedings Papers
Related Chapters
Numerical Simulation and Analysis on Gas Turbine Static Blade Erosion Caused by Particle Flow
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential