Shape Optimization of Lower Control Arm under Typical Road Conditions

摘要

Structure optimization of lower control arm was performed under three proving ground road conditions to find the best drawbead distribution.First,multi-body dynamics analysis was carried on to determine the deficiency of the lower control arm.Then shape optimization was applied based on the widely used optimization method under static loads by converting dynamic load of the three roads to equivalent static loads.Results of the new design show that the strength and stiffness were increased by 24.3％ and 42.9％ respectively.