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Proceedings Paper

Vibration control of composite laminates using distributed smart layers
Author(s): A. V. Krishna-Murty; M. Seetharama Bhat; Bishakh Bhattacharya; Sudipta Maiti
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Paper Abstract

Vibration reduction possibilities in laminated composite with one of the plies as actuation layer, have been investigated. Magnetostrictive and piezoelectric actuation have been considered. A comparative assessment of the vibration suppression performance of piezoelectric and magnetostrictive actuation in laminated composite beam has been presented. Variation of closed loop frequencies and damping coefficients with respect to the changes in ply lay- up, active layer position and controller gain have been studied. A smart composite finite element for laminated beam analysis has been developed. Numerical results have been presented in typical cases, to indicate performance of the finite elements developed and also to indicate the variation of vibration reduction times with various geometric and control parameters.

Paper Details

Date Published: 16 April 1998
PDF: 12 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305545
Show Author Affiliations
A. V. Krishna-Murty, Indian Institute of Science (India)
M. Seetharama Bhat, Indian Institute of Science (India)
Bishakh Bhattacharya, Indian Institute of Science (India)
Sudipta Maiti, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 3321:
1996 Symposium on Smart Materials, Structures, and MEMS
Vasu K. Aatre; Vijay K. Varadan; Vasundara V. Varadan, Editor(s)

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