Damper modules with adapted stiffness ratio

摘要

A mechanism for the excitation of piston rod vibrations in automotive damper modules is discussed by a simple model. An improved nonlinear model based on elasticity effects leads to good simulation results. It is shown theoretically and experimentally that the adaptation of the stiffness of the piston rod bushing to the "stiffness" of the damper force characteristic can eliminate the piston rod oscillations completely.