Please use this identifier to cite or link to this item: https://doi.org/10.1006/jsvi.2000.3357
Title: A controllability index for optimal design of piezoelectric actuators in vibration control of beam structures
Authors: Wang, Q. 
Wang, C.M. 
Issue Date: 3-May-2001
Source: Wang, Q., Wang, C.M. (2001-05-03). A controllability index for optimal design of piezoelectric actuators in vibration control of beam structures. Journal of Sound and Vibration 242 (3) : 507-518. ScholarBank@NUS Repository. https://doi.org/10.1006/jsvi.2000.3357
Abstract: This paper addresses the controllability aspect in vibration control of beam structures with piezoelectric actuators. First, we model the beam structure with piezoelectric actuators and establish the corresponding state-coupled equation. Based on the state equation, we propose a controllability index to quantify the controllability factor. This index allows one to estimate the amount of control energy by the piezoelectric actuators to the beam for a given control input. So it can be used as an objective function to determine the optimal locations of piezoelectric actuators for vibration control of beam structures. Some numerical simulations are carried out to illustrate the use of this newly proposed controllability index in seeking out the optimal locations of actuators in simply supported and cantilevered beams with one and two actuators. The index is shown to be adequately sensitive for determining the optimal locations of the actuators.
Source Title: Journal of Sound and Vibration
URI: http://scholarbank.nus.edu.sg/handle/10635/54034
ISSN: 0022460X
DOI: 10.1006/jsvi.2000.3357
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