基于Mloldflow和Hypermesh的轴承座翘曲工艺参数优化

为了提高轴承座注塑件有限元分析中的网格质量，利用Hypermesh软件划分有限元网格，并按照网格质量的一般准则进行检验。运用Moldflow模拟吸尘器轴承座的成型过程中，采用了4因素5水平的正交试验探究翘曲与主要因素的关系。通过对试验结果进行极差分析来得到正交空间内最优注塑参数组合。为了找出整个工艺条件空间内的最优解，利用翘曲测试数据建立起用于预测轴承座翘曲值的多元回归方程，然后对回归方程进行显著性检验。最后根据回归方程求得工艺空间内的最优参数组合，从而得到最小的翘曲量。研究表明采用Hypermesh划分网格比Moldflow更容易得到高质量的网格模型，运用回归方程求取的最小翘曲值比极差分析获得的翘曲值更优

Optimization of Bearing Stand Warpage Process Parameters Based on Moldflow and Hypermesh

The finite element model of a bearing stand was processed by Hypermesh to improve the mesh quality andexamined in accordance with the general guidelines of the mesh quality. Four factors and five levels of orthogonalexperiment were used to analyze the relationship between the warpage and each factor in the injection molding processwith Moldflow. With the range analysis,we could obtain the best combination of process parameters for minimumwarpage. To find out the optimal process parameters within the solution space,the regression equation for predictingwarpage was established,and the significance test was made. Finally,the minimum warpage was obtained through theoptimal process parameters from the regression equation. The results showed that high-quality mesh was more easier to beobtained by Hypermesh rather than Moldflow,and mimmum warpage based on the regression equation was better thanwarpage obtained by range analysis.