A Shock Absorber Vibration Analysis - High-Frequency and Low-Frequency

The vibration characteristics of the shock absorber/strut is one of the key factors for vehicle NVH. In order to build a model of the strut, excitation tests were conducted on the struts alone to examine the mechanism causing the “cocking phenomenon” of struts at high frequencies and the “stick-slip phenomenon” at low frequencies. As a result, strut models that accurately reproduce these phenomena were constructed using the NASTRAN code and the ADAMS program, respectively.