A new shock absorber model for use in vehicle dynamics studies

The development of a numerical damper model that calculates the damper force as a function of the displacement and velocity of the piston rod in relation of the damper body was described. The proposed damper model can be placed in the group of so-called white box models, which provides the necessary insight in the damper physics. The resulting damper force is directly related to various parameters, which has a physical meaning. The model coefficients are grouped in such a way that the model parameters can be obtained by measurements from a hydraulic dynamometer. The scope of the model is to include all nonlinearities and dynamic within a frequency range up to 30 Hz.