期刊
JOURNAL OF SOUND AND VIBRATION
卷 312, 期 1-2, 页码 210-233出版社
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2007.10.051
关键词
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A closed-loop optimal location selection method for actuators and sensors in flexible structures is developed. The introduced technique simultaneously designs a computationally simple H-infinity controller and optimizes the location with a gradient-based unconstrained minimization. The H-infinity controller is a modified version of a normalized coprime controller and obtained by solving control and filter algrebraic Riccati equations (CARE and FARE) approximately. Different types of weights (disturbance input, performance output, sensor noise inputs, etc.) are incorporated to the generalized plant. Hence, the approximate ARE solutions take into consideration the signal weightings in the system. Since an iterative gradient search algorithm is used, the partial derivatives of the approximate AREs with respect to the design parameters are taken. Developed method is detailed and illustrated by a Euler-Bernoulli beam example. (c) 2007 Elsevier Ltd. All rights reserved.
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