Dynamic modeling and shape control of a flexible plate containing electrorheological fluids

Yong-Kun Park; Seung-Bok Choi

doi:10.1117/12.275676

6 June 1997 Dynamic modeling and shape control of a flexible plate containing electrorheological fluids

Yong-Kun Park, Seung-Bok Choi

Proceedings Volume 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems; (1997) https://doi.org/10.1117/12.275676
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

This paper provides dynamic modeling and shape control of a flexible plate containing an electro-rheological (ER) fluid between two elastic face layers. Firstly, a rotary oscillation test is conducted to obtain complex shear modulus of the employed starch-based ER fluid itself as a function of applied electric fields and excitation frequencies as well. A dynamic model of the plate structure is then developed by incorporating the measured modulus. Field-dependent vibration characteristics for a rectangular ER fluid-based plate with two simply-supported edges are evaluated through a finite element approach. Simulation results indicate that the proposed dynamic model can be employed to predict vibration characteristics of ER fluid-based structures and that the ER fluids imbedded in the distributed parameter-systems of plate- like structures have a great deal of authority in tuning vibration characteristics of natural frequencies, mode shapes, and damping properties.

Citation Download Citation

Yong-Kun Park and Seung-Bok Choi "Dynamic modeling and shape control of a flexible plate containing electrorheological fluids", Proc. SPIE 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems, (6 June 1997); https://doi.org/10.1117/12.275676

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