Analysis of MR Damper for Quarter and Half Car Suspension Systems of a Roadway Vehicle

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Published: Feb 28, 2017
DOI: https://doi.org/10.4273/ijvss.9.1.04
Keywords:
Magnetorheological dampers, Suspension systems, Spencer model, Simulation and fabrication of MR damper

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D.V.A.R. Sastry
Dept.of Mech. Engg., K L University, Vaddeswaram, Guntur
K.V. Ramana
Dept.of Mech. Engg., K L University, Vaddeswaram, Guntur
N.M. Rao
Dept.of Mech. Engg., University College of Engg.,JNTUK, Kakinada, Andhra Pradesh
P. Pruthvi
Dept.of Mech. Engg., K L University, Vaddeswaram, Guntur
D.U.V. Santhosh
Dept.of Mech. Engg., K L University, Vaddeswaram, Guntur

Abstract

Magnetorheological (MR) dampers are evolving as one of the most promising devices for semi-active vibration control of various dynamic systems. In this paper, the suspension system of a car using MR damper is analysed for 2DOF quarter car and 4DOF half car models and then compared with corresponding suspension system using passive damper for ride comfort and handling. Magnetorheological damper is fabricated using a MR fluid of Carbonyl iron powder and Silicone oil added with additive. Experiments are conducted to establish the behaviour of the MR damper and are used to validate Spencer model for MR damper. Further, using the validated Spencer model of MR damper, the quarter car and half car models of Vehicle Suspension system are simulated by implementing a semi-active suspension system for analysing the resulting displacement and acceleration in the car body. The ride comfort and vehicle handling performance of each specific vehicle model with passive suspension system are compared with corresponding semi-active suspension system. The simulation and analysis are carried out using MATLAB/SIMULINK.

Article Details

Issue
Vol. 9 No. 1 (2017)
Section
Articles
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