Low DOF Bushing Model Based on A Nonlinear Viscoelastic Constitutive Model of Rubber Materials

Abstract

To obtain sufficient accuracy for vehicle dynamic performance simulation, it is necessary to consider bushing amplitude and frequency dependency as well as preload effects in the rubber bushing model. FE models are capable of reproducing these characteristics though it is difficult to obtain sufficient calculation accuracy within practical computation time. This paper proposes a new low degree of freedom (DOF) bushing model. The new bushing model exhibits high computational performance while maintaining precision.