✦ LIBER ✦

A Study of Segmentation of Distributed Piezoelectric Sensors and Actuators, Part II: Parametric Study and Active Vibration Controls

✍ Scribed by H.S. Tzou; H.Q. Fu

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 466 KB
Volume: 172
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1994.1173

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✦ Synopsis

Distributed piezoelectric layers can be used as distributed sensors and actuators for structural monitoring and control of elastic continua. In this paper, distributed vibration sensing and control of continua using single-piece symmetrically distributed and multi-piece segmented sensors/actuators are studied. In Part I, mathematical models of a plate with a single-piece distributed sensor/actuator and multi-piece segmented sensors/actuators were formulated and performances were evaluated. In Part II, active vibration controls of the plate with various sizes of sensors/actuators and control algorithms, the proportional feedback and Lyapunov controls, are presented. Time-history responses of the plate with and without feedback controls are analyzed and compared. Breaking points of controlled dampoing ratios for different mode groups are observed.

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