Title: Frequency and current effects in a MR damper

Authors: Jorge de-J. Lozoya-Santos, Ruben Morales-Menendez, Ricardo A. Ramirez-Mendoza, Elvira Nino-Juarez

Addresses: Tecnologico de Monterrey, Campus Monterrey, School of Engineering, 64,849 Monterrey, NL, Mexico. ' Tecnologico de Monterrey, Campus Monterrey, Accreditations and Quality Enhancement, 64,849 Monterrey, NL, Mexico. ' Tecnologico de Monterrey, Campus Ciudad de Mexico, School of Engineering, 14,380, DF, Mexico. ' Tecnologico de Monterrey, Campus Monterrey, School of Engineering, 64,849 Monterrey, NL, Mexico

Abstract: This paper deals with Magneto-Rheological (MR) damper modelling and identification. The effect of the frequency and current is analysed through a database of four experimental datasets with different displacement and current. The benchmarking of modified models of a literature model approach is done. It is clarified the linearity of the current with the maximum damping force and its effect on the hysteresis; and if the displacement and current have persistent magnitude variation, the model parameters can be frequency independent. A resultant model based on these findings has realistic behaviour with a simple structure, two non common model features for this device.

Keywords: MR damper identification; parameterised physical models; simulation; magnetorheological damping; modelling; damping force; hysteresis.

DOI: 10.1504/IJVAS.2009.033258

International Journal of Vehicle Autonomous Systems, 2009 Vol.7 No.3/4, pp.121 - 140

Published online: 14 May 2010 *

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