Static analysis of a multi-link suspension system used for the rear beam axles of vehicles

Abstract

The primary goal of the static analysis for the vehicle axle suspension systems consists in finding the equilibrium position of the mechanism in relation to the car body (which is considered the fixed reference part), under the action of the contact forces on wheels resulting from the overall dynamic balance of the vehicle. In the equilibrium position of the suspension, the reaction forces in the elastic elements of the suspension are to be determined, these being necessary in order to properly sizing these elements. In the present work, the previously stated problem is addressed by using an analytical method (and the corresponding computing program) that was detailed in an earlier work by the author. The study in this paper is focused on determining the reaction forces from the elastic elements of one of the most used types of axle suspension system, namely the one with a five-bar guidance mechanism.

Keywords

• beam
• static analysis
• elastic elements
• guidance mechanism