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Proceedings Paper

Electrorheological damper analysis using an Eyring-plastic model
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Paper Abstract

This paper presents experimental and theoretical analysis of an electrorheological (ER) damper. To describe the practical damper characteristics on force vs. velocity and force vs. displacement responses, a new alternative to existing models is proposed. On the basis of an Eyring model, Eyring-plastic model is constructed by the combination of simple nonlinear functions. Therefore, the Eyring-plastic model has the advantage to be simple in its design and formulation, even though it is in the form of a nonlinear function. In addition, the Eyring-plastic model can capture quite well the practical damper responses, particularly, in both the preyield and the postyield states. An ER damper is configured and its damping force under various electric fields and excitation frequencies is experimentally tested. On the basis of the damper response tested, the Eyring-plastic model is constructed and its validation is proved by comparing the experimental and predicted damper data on force vs. velocity and force vs. displacement responses.

Paper Details

Date Published: 27 June 2002
PDF: 12 pages
Proc. SPIE 4697, Smart Structures and Materials 2002: Damping and Isolation, (27 June 2002); doi: 10.1117/12.472667
Show Author Affiliations
Lionel Bitman, Univ. of Maryland/College Park (United States)
Young-Tai Choi, Univ. of Maryland/College Park (United States)
Norman M. Wereley, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 4697:
Smart Structures and Materials 2002: Damping and Isolation
Gregory S. Agnes, Editor(s)

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