Quoc-Hung Nguyen and Seung-Bok Choi 2009 Smart Mater. Struct. 18 115020 doi:10.1088/0964-1726/18/11/115020
Quoc-Hung Nguyen and Seung-Bok Choi1
Show affiliationsThis work proposes a new method for dynamic modeling of an electrorheological (ER) damper using a lumped parameter method. After describing the configuration and operating principle of the ER damper, quasi-static modeling of the damper is conducted on the basis of the Bingham model of ER fluid. Subsequently, the lumped parameter models of ER fluid flows in the damper are established and the integrated lumped model of the whole damper system is obtained by taking into account the dynamic motions of the annular duct, upper chamber, lower chamber and connecting pipe. In order to demonstrate the effectiveness of the proposed dynamic model, a comparative work between the simulation and the experiment is undertaken. This is performed under various piston motions with different excitation magnitudes and frequencies. In addition, the effect of ER fluid compressibility and initial pressure in the accumulator on the hysteresis of the ER damper is investigated.
47.65.Gx Electrorheological fluids
83.60.Np Effects of electric and magnetic fields
89.20.Bb Industrial and technological research and development
Issue 11 (November 2009)
Received 2 January 2009, in final form 10 June 2009
Published 15 September 2009
Quoc-Hung Nguyen and Seung-Bok Choi 2009 Smart Mater. Struct. 18 115020
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