VIRTUAL TRACK FOR SIMULATING A FULL-VEHICLE DIGITAL MODEL

Abstract

In this paper, we attempt to carry out the dynamic analysis of a motor vehicle, using the virtual prototype developed with the MBS software ADAMS of MSC Software. The dynamic model takes into consideration the geometric restrictions as well as the nonlinear characteristics of the elastic and damping elements. The virtual prototype includes the front and the rear suspension subsystems, the steering subsystem, and the car body subsystem. Two double-wishbone mechanisms are used for the suspension of the front wheels. The steering subsystem contains a central pitman arm that rotates to impart motion to the left and right tie-rods. The rear rigid axle is guided by a three-links mechanism, which is a dependent suspension model. The experiment designed is one frequently carried by the automotive manufacturers, namely passing over bumps, considering a virtual track.