Tuning using electromechanical surface damping

Hany Ghoneim

doi:10.1117/12.174117

1 May 1994 Tuning using electromechanical surface damping

Hany Ghoneim

Proceedings Volume 2193, Smart Structures and Materials 1994: Passive Damping; (1994) https://doi.org/10.1117/12.174117
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

The electromechanical surface damping (EMSD) technique, for controlling the peak vibration amplitudes of beam-like structures, is modified to extend the effective range of the approach. The technique is a combination of the constrained layer damping and the shunted piezoelectric methods, where the viscoelastic constrained layer attached to the vibrating surface is constrained by a shunted piezoelectric ceramic element. The mathematical model of the modified EMSD element is presented, implemented into a finite element algorithm and applied to demonstrate the ability of the technique to simultaneously and effectively suppress the first three resonant peaks of a generic aluminum cantilever beam.

Citation Download Citation

Hany Ghoneim "Tuning using electromechanical surface damping", Proc. SPIE 2193, Smart Structures and Materials 1994: Passive Damping, (1 May 1994); https://doi.org/10.1117/12.174117

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