Passive and active damping of a large composite panel

Donald G. Morris; Yuki Tao

doi:10.1117/12.310711

16 June 1998 Passive and active damping of a large composite panel

Donald G. Morris, Yuki Tao

Proceedings Volume 3327, Smart Structures and Materials 1998: Passive Damping and Isolation; (1998) https://doi.org/10.1117/12.310711
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

A study was undertaken to investigate low frequency vibration suppression of a large composite panel under acoustic excitation. Both passive and active techniques are examined. Passive damping is achieved with a peel and stick constrained layer damping treatment. The treatment uses a constraining layer with a stand-off spacer to increase damping performance. Active damping is achieved with surface bonded piezoceramic wafer actuators and a closed-loop controller. This paper will discuss the analytical modeling of both damping techniques and show comparisons with test data. The reduced vibration resulted in noise attenuation at panel resonance. This phenomenon will also be discussed with the presentation of accelerometer and microphone test data.

Citation Download Citation

Donald G. Morris and Yuki Tao "Passive and active damping of a large composite panel", Proc. SPIE 3327, Smart Structures and Materials 1998: Passive Damping and Isolation, (16 June 1998); https://doi.org/10.1117/12.310711

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