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Adaptive control of vibration transmission in a strut system

Liao, CM and Roy Mahapatra, D and Balachandran, B (2007) Adaptive control of vibration transmission in a strut system. In: SPIE Smart Mater. Struct. Conf., March 18-22 2007, San Diego.

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Abstract

In this article, theoretical and the experimental studies are reported on the adaptive control of vibration transmission in a strut system subjected to a longitudinal pulse train excitation. In the control scheme, a magneto-strictive actuator is employed at the downstream transmission point in the secondary path. The actuator dynamics is taken into account. The system boundary parameters are first estimated off-line, and later employed to simulate the system dynamics. A Delayed-X Filtered-E spectral algorithm is proposed and implemented in real time. The underlying mechanics based filter construction allows for the time varying system dynamics to be taken into account. This work should be of interest for active control of vibration and noise transmission in helicopter gearbox support struts and other systems.

Item Type: Conference Paper
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 23 Nov 2011 07:09
Last Modified: 23 Nov 2011 07:09
URI: http://eprints.iisc.ernet.in/id/eprint/41610

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