全浮式半轴的结构计算分析与优化设计

The structure computational analysis and optimal design of full-floating axle shaft

根据力学公式及有限元线性计算的结果得出委托方提供的全浮式半轴原始设计具备了结构优化条件;结合产品新工艺提出了3种优化方案,分别对各种设计方案在考虑材料非线性和结构表面热处理因素影响的条件下进行非线性有限元分析;使用失效扭矩作为评价各设计方案的强度指标,结合减重效率值对各设计方案进行比较;采用该方法所得出的最优设计方案不仅简化了产品加工工艺而且具有显著的减重效果.

First, the original design of a full-floating axle shaft entrusted by the client has the condition of structure optimization based on mechanical formula and the finite element linear calculation. Then, we put forward three optimal schemes and conduct nonlinear finite element analysis respectively after considering nonlinear material and structural heat treatment. Finally, we innovatively use failure torque as the strength index to evaluate the schemes.And we also consider weight loss efficiency value in evaluating the schemes. The optimal design scheme not only simplifies the product processing craft but also has significant effect of weight loss, thus has gained recognition of the client.