基于OptiStruct的麦弗逊悬架下控制臂优化

针对麦弗逊悬架下控制臂的优化问题,为减轻其质量、增强其刚度,基于拓扑优化理论和有限元法,用OptiStruct对某铸造麦弗逊悬架下控制臂进行拓扑优化.在规定的体积内获得最佳的材料分布,使刚度最大.优化后重建CAD模型,并与原件的刚度和模态进行比较,结果表明该优化能减轻控制臂质量、增强下控制臂刚度。

Optimization on lower control arm of McPherson suspension based on OptiStruct

As to the optimization of lower control arm of McPherson suspension including mass lightening and stiffness improvement, based on topology optimization theory and finite element method, topology optimization is performed on the lower control arm of a casting McPherson suspension by OptiStruct. The optimal material distribution in the required volume is achieved with maximum stiffness. CAD model is rebuilt after optimization, and then the stiffness and modal are compared with those of the original arm. The results show that the optimization can lighten the mass and enhance the stiffness of lower control arm.