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ADAPTIVE CONTROL FOR SOUND AND VIBRATION ATTENUATION: A COMPARATIVE STUDY

✍ Scribed by J. SHAW

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
196 KB
Volume
235
Category
Article
ISSN
0022-460X

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✦ Synopsis

Adaptive control is often applied to a disturbed system whose parameters may be uncertain or even time varying. In this paper, two standard adaptive feedback controllers, featuring both system identi"cation and control in real time, are compared for active sound and vibration attenuation. The two adaptive feedback controllers to be compared are the (i) self-tuning regulator and (ii) plant disturbance canceler. In the plant disturbance canceler, two methods for the controller tuning and three dithering schemes for plant model identi"cation are considered. A numerical simulation for active vibration isolation and experimental investigations for active sound and vibration attenuation of the two adaptive feedback controllers are carried out. Both numerical and experimental results show that the self-tuning regulator outperforms the plant disturbance canceler in terms of much more amounts of sound and vibration attenuation and much faster convergence rate.

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