面向并行设计的结构分析和优化设计特征建模

CONCURRENTDESIGNORIENTED FEATURE MODELING FOR STRUCTURAL ANALYSIS AND OPTIMIZATION

基于并行工程原理研究了结构分析和优化设计的特征建模问题，研究了结构分析特征和优化特征的分类及表达。建立了有限元网格数据结构与几何模型的关系，并采用形状特征参数作为优化设计变量，实现结构有限元分析和优化设计与几何设计信息共享，对进一步研究ＣＡＤ／ＣＡＥ／ＣＡＭ集成具有重要意义。

Based on the theory of concurrent engineering the feature modeling for structure analysis and structural optimization is studied in the paper. The categories and expressions of structure analysis and optimization feature are presented. The information sharing among structural finite element analysis, optimization and geometry design is realized though the establishment of the relationship between the data structure of finite element meshes and geometry model and the employment of the parameters of shape feature as optimal design variables. The method deseribed here is important to further research for the integration of CAD/CAE/CAM.