Sh. Chen et Zj. Cao, A new method for determining locations of the piezoelectric sensor/actuator for vibration control of intelligent structures, J IN MAT SY, 11(2), 2000, pp. 108-115
Citations number
13
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
A technique for determining the locations of piezoelectric sensors and actu
ators (S/As) of intelligent structures on the basis of element sensitivitie
s of the singular-values of the controllability and observability is presen
ted. The element sensitivity of the singular-values is used as the measure
to identify the best locations of S/As, which is defined from the 1st order
perturbations of singular-values of the controllability and observability.
A criterion and a threshold value are used to determine which actuator/sen
sor elements need to be kept/removed based on the sensitivity information.
Locations of S/As are determined as the point where the element sensitivity
of the singular-values is the maximum. Two numerical examples, the cantile
ver beam and the model of solar panels, are given to illustrate the applica
tions of the present method.