High bandwidth tunability in a smart vibration absorber

Alison B. Flatau; Marcelo J. Dapino; Frederick T. Calkins

doi:10.1117/12.310709

16 June 1998 High bandwidth tunability in a smart vibration absorber

Alison B. Flatau, Marcelo J. Dapino, Frederick T. Calkins

Proceedings Volume 3327, Smart Structures and Materials 1998: Passive Damping and Isolation; (1998) https://doi.org/10.1117/12.310709
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

The theory of an electrically tunable Terfenol-D vibration absorber is developed in this paper. An overview of mangetostriction including discussion of the (Delta) E effect is presented. Experimental results showing agreement with prior art are included that demonstrate electrical control of a magnetostrictive actuator resonant frequency by varying the resonance between 1275 Hz and 1725 Hz. The tunability of the transducer resonant frequency is then implemented to achieve high bandwidth tunability in the performance of a Terfenol-D vibration absorber.

Citation Download Citation

Alison B. Flatau, Marcelo J. Dapino, and Frederick T. Calkins "High bandwidth tunability in a smart vibration absorber", Proc. SPIE 3327, Smart Structures and Materials 1998: Passive Damping and Isolation, (16 June 1998); https://doi.org/10.1117/12.310709

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