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Proceedings Paper

Dynamic modeling of semi-active ER/MR fluid dampers
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Paper Abstract

This study focuses on a fluid mechanics approach utilizing the Herschel-Bulkley constitutive equation to develop a theoretical model for predicting the behavior of field- controllable electro-rheological (ER) and magneto- rheological (MR) fluid dampers. The aim of this research is to provide an accurate theoretical model for analysis, design, and development of control algorithms for ER/MR fluid dampers. The Herschel-Bulkley quasi-steady analysis is extended to include the effect of fluid compressibility. The major advantage of the proposed model is its dependency on only the geometric and material properties of the device. The theoretical results are validated by an experimental study. It is demonstrated that the proposed fluid mechanics- based dynamic model can effectively predict the behavior of field-controllable fluid dampers.

Paper Details

Date Published: 2 July 2001
PDF: 10 pages
Proc. SPIE 4331, Smart Structures and Materials 2001: Damping and Isolation, (2 July 2001); doi: 10.1117/12.432736
Show Author Affiliations
Xiaojie Wang, Univ. of Nevada/Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada/Reno (United States)


Published in SPIE Proceedings Vol. 4331:
Smart Structures and Materials 2001: Damping and Isolation
Daniel J. Inman, Editor(s)

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