Identification of the Damping Law of an Electro-Rheological Fluid: A Sequential Filtering Approach

[+] Author and Article Information
Roger Stanway, John Sproston, Riaz Firoozian

Department of Mechanical Engineering, University of Liverpool, Liverpool L69 3BX, Merseyside, U.K.

J. Dyn. Sys., Meas., Control 111(1), 91-96 (Mar 01, 1989) (6 pages) doi:10.1115/1.3153023 History: Received February 06, 1988; Online July 21, 2009


In this paper an approach is described to identifying the damping law of an electro-rheological (ER) fluid in vibration. The damping law is obtained by employing a nonlinear, sequential filter to estimate the parameters associated with an nth-power velocity model of the damping mechanism. To establish experimental requirements the application of the technique is first examined under controlled conditions in a numerical study. The feasibility of the approach is then demonstrated in an experimental study to identify the damping law of a prototype ER damper.

Copyright © 1989 by ASME
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