Ride comfort analysis of half vehicle suspension with a novel MR damper

Abstract

In order to improve the ride comfort of the passenger vehicles, an improved MR damper is designed. The magnetic pole of the damper is sinusoidal, whose effective length can be controlled by the magnetic field. In this way, the flow area of MR fluid can be controlled. The mechanical analysis of the proposed MR damper is carried out and the theoretical analysis results show that the proposed damper can meet the damping force requirements of vehicles under various driving conditions. Half car models are established, simulation analysis is carried out under random excitation, the evaluation parameters such as body acceleration and pitch angle are analyzed comprehensively. The results show that the proposed damper is more conducive to improve the ride comfort of the vehicle.