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A METHODOLOGY FOR DETERMINATION OF PIEZOELECTRIC ACTUATOR AND SENSOR LOCATION ON BEAM STRUCTURES

✍ Scribed by I. BRUANT; G. COFFIGNAL; F. LENE; M. VERGE

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
528 KB
Volume
243
Category
Article
ISSN
0022-460X

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✦ Synopsis

In the design of actively controlled structures, the determination of the actuators and sensors location is a very important issue. In this way, the purpose of this paper is to propose a new approach to "nd the optimal location of piezoelectric actuators and sensors on beam structures. More precisely, "rst the optimization criteria are de"ned: it is proposed here to "nd the optimal actuators location by minimizing the mechanical energy integral of the system and the optimal sensors location by maximizing the energy of the state output. In the two cases, a sensitivity method applied to the discrete equations is used. Several results are presented. This methodology is used to "nd the optimal location of one actuator and one sensor on a cantilever beam, and on a three-beam structure. When there are di!erent optimal locations, several performance measures are considered in order to keep one location.

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