Vibration control of plates using self-sensing active constrained layer damping

Jeng-Jong Ro; Amr M. Baz

doi:10.1117/12.349783

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2 June 1999 Vibration control of plates using self-sensing active constrained layer damping

Jeng-Jong Ro, Amr M. Baz

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Proceedings Volume 3672, Smart Structures and Materials 1999: Passive Damping and Isolation; (1999) https://doi.org/10.1117/12.349783
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

Active Constrained Layer Damping (ACLD) treatment has been used successfully for controlling the vibration of various flexible structures. The treatment provides an effective means for augmenting the simplicity and reliability of passive damping with the low weight and high efficiency of active controls to attain high damping characteristics over broad frequency bands. In this study, a self-sensing configuration of the ACLD treatment is utilized to simultaneously suppress the bending and torsional vibrations of plates. The treatment considered ensures collocation of the sensors/actuators pairs in order to guarantee stable operation. A three-layer network of the Self-sensing Active Constrained Layer Damping (SACLD) treatment is used to control multi-modes of vibration of a flexible aluminum plate (0.264 m X 0.127 m X 4.826E-4 m) which is mounted in a cantilevered arrangement. Two ACLD patches (0.264 m X 0.0635 m) with self-sensing polyvinylidine fluoride (PVDF) actuators oriented by (14 degrees/-14 degrees) configuration are treated on one side of plate. The theoretical characteristics of the multi-layer treatment are presented in this paper and compared with the experimental performance.

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Jeng-Jong Ro and Amr M. Baz "Vibration control of plates using self-sensing active constrained layer damping", Proc. SPIE 3672, Smart Structures and Materials 1999: Passive Damping and Isolation, (2 June 1999); https://doi.org/10.1117/12.349783

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