DECOUPLING ACTUATORS WITHH∞ROBUST CONTROL FOR ACTIVELY ISOLATING VIBRATING MACHINES
✍ Scribed by A. Gallet; S. Bellizzi
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 289 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0888-3270
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✦ Synopsis
A feedback controller designed to minimise the vibration transmitted to a flexible beam from a vibrating machine via two active isolation mounts is described. The state-space equation for the mechanical structure is obtained by performing modal analysis on the associated conservative structure. Ha control methods are used to derive a decoupled (diagonal) controller which provides robustness against unmodeled high-order frequency dynamics and optimises the performance in terms of the frequency response shaping of the modal accelerations. The performances of the decoupled controller were found to be similar to those of the coupled (global) one.