Projects per year
Abstract
A novel method for predicting the ultimate steady-state vibration amplitudes from measured transient responses in multi-input, multi-output flexible rotor/magnetic bearing systems is presented. The technique is based around a multi-level wavelet coefficient analysis with in-built transient system dynamics. The relation between an input disturbance wavelet coefficient acting on the system and a measured vibration wavelet coefficient is identified theoretically for non-identical wavelets. A controller is formulated in the wavelet coefficient domain with control forces derived from proportional feedback of displacement wavelet coefficients. Improved transient performance is achieved using wavelet coefficient steady-state prediction to moderate the control signal. Experimental validation of the controller using mass-loss tests demonstrates the manner in which transient vibration attenuation may be achieved. (c) 2006 Elsevier Ltd. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 88-103 |
Number of pages | 16 |
Journal | Journal of Sound and Vibration |
Volume | 302 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2007 |
Bibliographical note
ID number: ISI:000244649400006Fingerprint
Dive into the research topics of 'Rotor/active magnetic bearing transient control using wavelet predictive moderation'. Together they form a unique fingerprint.Projects
- 1 Finished
-
CONTROLLED ESCAPE FROM TRAPPED CONTACT MODES IN MAGNETIC BEA RING SYSTEMS
Keogh, P. (PI) & Burrows, C. (CoI)
Engineering and Physical Sciences Research Council
3/07/06 → 2/10/09
Project: Research council