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FINITE ELEMENT MODELLING OF LAMINATED PIEZO-ELASTIC STRUCTURES: LYAPUNOV STABILITY ANALYSIS

✍ Scribed by M KEKANA

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
146 KB
Volume
256
Category
Article
ISSN
0022-460X

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✦ Synopsis

In this study, the dynamic stability of "nite element modelling of laminated piezo-elastic structures is investigated. The criteria for stability are established based on the second method of Lyapunov, which considers the energy of the system. The results show that the equations of motion are asymptotically stable. However, energy dissipation through the piezoelectric e!ect continued at zero feedback gain. This implied that the structure was controlled unconditionally. Subsequently, a control strategy that satis"es the condition of no piezoelectric e!ects when the gain set to zero is developed.

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