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Proceedings Paper

Narrow-band control experiments in active vibration isolation
Author(s): John T. Spanos; Zahidul H. Rahman
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Paper Abstract

This paper presents experimental results in active vibration isolation using a new version of the adaptive Least Mean Squares control algorithm. The algorithm is implemented digitally as a tracking notch filter in an experiment where the actuator and error sensor are collocated. A pair of all-pass filters are utilized to generate the sine and cosine signals needed by the adaptive filter and troublesome modes of the plant are identified off-line and cancelled by direct inversion. The closed loop system shows two orders of magnitude reduction in force transmissibility over open loop and over a decade of frequencies.

Paper Details

Date Published: 4 October 1994
PDF: 7 pages
Proc. SPIE 2264, Vibration Monitoring and Control, (4 October 1994); doi: 10.1117/12.188862
Show Author Affiliations
John T. Spanos, Jet Propulsion Lab. (United States)
Zahidul H. Rahman, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 2264:
Vibration Monitoring and Control
Colin G. Gordon, Editor(s)

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