机床结构CAD/CAE集成分析与逐步回归建模方法

CAD/CAE Integration and Stepwise Regression Model of Machine Tool Mechanism

基于SolidW orks软件和ABAQUS有限元分析软件平台,提出了一种机床结构CAD/CAE集成分析方法,综合应用CAD参数化建模功能和CAE分析功能,实现了CAD/CAE集成和自动计算;以提高机床结构性能建模效率为目的,提出了一种基于拉丁超立方抽样试验设计和CAD/CAE集成分析的逐步回归建模方法,该方法通过监测建模过程中回归模型的精度,在保证建模精度的前提下,减少试验样本数量。以弧齿锥齿轮铣齿机为例,实现了该机床结构的CAD/CAE集成分析和机床结构优化逐步回归建模,验证了提出的分析及建模方法的可行性。

A CAD/CAE integration analytical method of machine tool mechanism was proposed based on the 3-D design software SolidWorks and the finite element analysis software ABAQUS,the CAD/CAE integration and automatic computation were realized by integrating the parametric modeling function of CAD and the finite element analysis function of CAE.Stepwise regression modeling based on Latin hypercube sampling and CAD/CAE integration was also proposed to improve the modeling efficiency of machine tool structural performance,it could reduce the samples and ensure the modeling accuracy by monitoring the stepwise regression model.The CAD/CAE integration analysis and stepwise regression model were carried out on spiral bevel gear milling machine,and proved to be feasible.