DIGITAL SIMULATION OF VIBRATION SOLUTIONS FOR A VEHICLE AUTOMOBILE BODY COMPONENT

摘要

The present invention relates to a method of simulating the fatigue stresses to a structural element of a motor vehicle body, said element comprising at least one zone supporting a mass which is offset, the method comprising the following steps: (a) preparation of the power spectral density in the acceleration of the zone or zones a mass offset (10); (b) digital modeling of the structural element (12); (c) integration of the power spectral density of the zone or zones in the digital modeling (14); (d) the calculation of stresses as a function of frequency (16) in order to identify the limit stresses (18).