Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Experimental Researches on the Dynamic Behavior of the Magnetorheological Damper

Version 1 : Received: 13 May 2020 / Approved: 14 May 2020 / Online: 14 May 2020 (11:43:12 CEST)

How to cite: Dobre, A. Experimental Researches on the Dynamic Behavior of the Magnetorheological Damper. Preprints 2020, 2020050237 (doi: 10.20944/preprints202005.0237.v1). Dobre, A. Experimental Researches on the Dynamic Behavior of the Magnetorheological Damper. Preprints 2020, 2020050237 (doi: 10.20944/preprints202005.0237.v1).

Abstract

In the context of improving the comfort and dynamics of the vehicle, the suspension system has been continuously developed and improved, especially using magnetorheological (MR) shock absorbers. The development of this technology which is relatively new has not been easy. Thus, the first widespread commercial use of MR fluid in a semi-active suspension system was implemented in passenger cars. The magnetorheological shock absorber can combine the comfort with the dynamic driving, because it allows the damping characteristic to be adapted to the road profile. The main objective of the paper is to analyze the dynamic behavior of the magnetorheological shock absorber in the semi-active suspension. In this sense, the author carried out a set of experimental measurements with a damping test bench, specially built and equipped with modern equipment. The results obtained from the experimental determinations show a significantly improved comfort when using a magnetorheological shock absorber, compared to a classic one, by the fact that the magnetorheological shock absorber allows to modify the damping coefficient according to the road conditions, thus maintaining the permanent contact between the tire and the road due to increased damping force.

Subject Areas

damper; magnetorheological fluids; current intensity; AMESim; semi-active suspension

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