A Quarter Car Model Using a Multibody Code

One of the most challenge task in tire road interaction is the study of the behavior of the suspension when the wheel meets an obstacle. The suspension system of a vehicle has to absorb the effects of a bumpy road surface or of an obstacle that could influence the guide. It is also important to preserve the integrity of the internal components that can face premature aging because of the constant stress and vibration. In this paper a preliminary study concerning the suspension behavior meeting an obstacle conducted using a Quarter Car Model is presented. The methodology used will be described in detail starting from the modeling of a Quarter Car Model, then analyzing the structure of the suspension and simulating them in different conditions using Matlab Simulink software through SimMechanics and SimDriveline libraries.