Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13390
Title: Global damping of noise or vibration fields with locally synthesized controllers
Authors: Yuan, J 
Issue Date: 2002
Publisher: Acoustical Society of America
Source: Journal of the Acoustical Society of America, 2002, v. 111, no. 4, p. 1726-1733 How to cite?
Journal: Journal of the Acoustical Society of America 
Abstract: A locally synthesized controller (LSC) is one that uses a local feedback signal in a noise or vibration field (VF) to synthesize the actuation signal. The global damping of a VF by available LSCs requires sensor-actuator collocation. This study presents a LSC for the global damping of a VF without requiring sensor-actuator collocation, which is important to noise control applications where a sensor may be placed away from an actuator to avoid the near field effects. It is proven that the LSC damps the entire VF instead of just a local feedback loop. This is different from other LSCs that may control local feedback loops without damping the VFs. A decentralized control law is presented here to extend the LSC to a decentralized damping system using multiple actuators.
URI: http://hdl.handle.net/10397/13390
ISSN: 0001-4966
EISSN: 1520-8524
DOI: 10.1121/1.1456516
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