✦ LIBER ✦

VIBRATION CONTROL OF BENDING MODES OF PLATES USING ACTIVE CONSTRAINED LAYER DAMPING

✍ Scribed by C.H. PARK; A. BAZ

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 297 KB
Volume: 227
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1999.2391

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✦ Synopsis

The fundamentals of active vibration control of plates are investigated theoretically and experimentally, using active constrained layer damping (ACLD) treatments. Particular emphasis is placed on controlling of the "rst two bending modes of vibration of plates which are treated fully with ACLD treatments using proportional and derivative control laws. Finite element models are developed to describe the dynamics of the ACLD. A modi"ed version of laminated plate theory, which is an extension of the layer-wise Kirchho! deformation relationships for the actuator/sensor layers and the base plate layer is introduced. Also, the Mindlin}Reissner plate theory is adopted to express the shear deformation characteristics of the viscoelastic layer. The models are validated experimentally at various operating conditions. The results obtained indicate the potential of the ACLD treatments as very e!ective means for damping the structural vibrations as compared to the conventional PCLD.

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