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Proceedings Paper

Optimization of energy dissipation characteristics of active constrained layer damping
Author(s): Amr M. Baz
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Paper Abstract

The energy dissipation characteristics of Active Constrained Layer Damping (ACLD) treatments, consisting of visco-elastic cores constrained by active piezo-electric layers, is optimized using rational design procedures. The optimal lengths and control gains of these ACLD treatments are determined when a globally stable boundary control strategy is utilized to control the longitudinal strain of the active piezo-electric layers in response to the structural vibrations. The optimal parameters are obtained such that the sum of the passive and active loss coefficients of the ACLD treatments is maximized. The effect of the visco- elastic loss factor on the performance and the optimal parameters of the ACLD treatments is determined. Comparisons with optimal ACLD is more effective in dissipating vibrational energy particularly for visco-elastic cores with low loss factors.

Paper Details

Date Published: 16 April 1998
PDF: 16 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305603
Show Author Affiliations
Amr M. Baz, Catholic Univ. of America (United States)


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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