基于SolidThinking Inspire的牵引车平衡轴支架结构优化

以某牵引车平衡悬架的平衡轴支架为对象,基于Optistruct求解器建立平衡悬架总成的有限元模型,设置单边跳动、满载制动和满载转弯工况并进行了静力学分析;在SolidThinking Inspire中采用拓扑优化方法,以支架刚度作为优化目标,以支架厚度作为约束条件,对支架进行拓扑优化设计,在CATIA中重新建立优化后的支架模型并进行验证。结果表明:优化后的支架在单边跳动和满载转弯工况下的最大应力分别下降了16.0%与10.3%,满载制动工况下的最大应力升幅为15.4%,减重近12%。

Structural Optimization of Tractor's Balance Shaft Bracket Based on SolidThinking Inspire

The balance shaft bracket of a tractor’s balance suspension was used as the research object,FEM of the balance suspension assembly based on the Optistruct solver was established.The unilateral bounce,full-load braking and full-load steering conditions were set and statics analysis were conducted.The topology optimization method was adopted in SolidThinking Inspire,the stiffness of the bracket model was taken as the optimization goals,and the thickness of the model was set as the constraint condition,the topology optimization design of the bracket was carried out.The optimization was re-established in CATIA.The optimization results show that the maximum stress of the optimized bracket in unilateral bounce and full-load steering conditions are reduced by 16.0%and 10.3%respectively,and the maximum stress in full-load braking conditions is increased by 15.4%.The weight of the new model is reduced by nearly 12%.