Title: Damping force prediction of electrorheological fluid damper using an analytical dynamic model

Authors: Q.H. Nguyen; S.B. Choi; Y.S. Lee; M.S. Han

Addresses: Department of Mechanical Engineering, Ho Chi Minh University of Industry, Ho Chi Minh City, Vietnam ' Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea. ' Faculty of Mechanical and Automotive Engineering, Keimyung University, Daegu 704-701, Korea. ' Faculty of Mechanical and Automotive Engineering, Keimyung University, Daegu 704-701, Korea

Abstract: This work proposes a new analytical approach for dynamic modelling of the Electrorheological (ER) damper for accurate prediction of the hysteresis behaviour. In the proposed dynamic model, both the compressibility of ER fluid in the upper and lower chambers and the dynamics of ER fluid flow in the annular duct of the ER damper are considered. In order to demonstrate the effectiveness of the proposed model, a comparative work between simulation and experiment is undertaken at various piston motions with different excitation magnitude and frequency. The effects of the fluid compressibility, initial pressure and gas volume in the accumulator on the hysteresis of the ER damper are investigated.

Keywords: electrorheological damper; dynamic modelling; Bingham model; hysteresis prediction; fluid compressibility; accumulator pressure; damping force prediction; fluid flow; gas volume.

DOI: 10.1504/IJVD.2011.043596

International Journal of Vehicle Design, 2011 Vol.57 No.1, pp.50 - 70

Received: 29 Oct 2010
Accepted: 29 Nov 2010
Published online: 15 Apr 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article