In this paper we present a methodology and results from an experimental investigation of forced vibration response for a bladed disk with fitted under-platform ‘cottage-roof’ friction dampers, together with the corresponding numerical predictions. A carefully-designed and constructed rotating test rig is used to make precise measurements which involve only the phenomena of interest. For this purpose, the measurement rig is operated under vacuum to eliminate aerodynamic effects on the rotating blisk and non-contact excitation and measurement techniques are employed so as not to modify the bladed disk dynamics. The experimental data measured are used for validation of multi-harmonic balance-based prediction tools developed at Imperial College. Predictions are carried out both with and without taking inherent mechanical mistuning into account, which is identified from measured data. Measured and predicted response curves are compared with each other and the degree of correlation is discussed.
Skip Nav Destination
ASME Turbo Expo 2007: Power for Land, Sea, and Air
May 14–17, 2007
Montreal, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4794-2
PROCEEDINGS PAPER
Experimental and Numerical Investigation of Rotating Bladed Disk Forced Response Using Under-Platform Friction Dampers Available to Purchase
Ibrahim A. Sever,
Ibrahim A. Sever
Rolls Royce plc, Derby, UK
Search for other works by this author on:
Evgeny E. Petrov,
Evgeny E. Petrov
Imperial College London, London, UK
Search for other works by this author on:
David J. Ewins
David J. Ewins
Imperial College London, London, UK
Search for other works by this author on:
Ibrahim A. Sever
Rolls Royce plc, Derby, UK
Evgeny E. Petrov
Imperial College London, London, UK
David J. Ewins
Imperial College London, London, UK
Paper No:
GT2007-27307, pp. 323-333; 11 pages
Published Online:
March 10, 2009
Citation
Sever, IA, Petrov, EE, & Ewins, DJ. "Experimental and Numerical Investigation of Rotating Bladed Disk Forced Response Using Under-Platform Friction Dampers." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 5: Turbo Expo 2007. Montreal, Canada. May 14–17, 2007. pp. 323-333. ASME. https://doi.org/10.1115/GT2007-27307
Download citation file:
20
Views
Related Proceedings Papers
Related Articles
Nonlinear Modal Analysis of Mistuned Periodic Structures Subjected to Dry Friction
J. Eng. Gas Turbines Power (July,2016)
Experimental and Numerical Investigation of Rotating Bladed Disk Forced Response Using Underplatform Friction Dampers
J. Eng. Gas Turbines Power (July,2008)
Related Chapters
Smart Semi-Active Control of Floor-Isolated Structures
Intelligent Engineering Systems Through Artificial Neural Networks, Volume 17
Surface Analysis and Tools
Tribology of Mechanical Systems: A Guide to Present and Future Technologies
Conductors in Electrostatic Equilibrium
Introduction to Classical Electrodynamics 1