基于特征的有限元前处理研究

Research on Feature-based Preprocessing of FEA

鉴于特征技术在产品设计与制造领域的广泛应用，将特征技术引入到有限元前处理过程中，研究了基于特征的网格划分、基于特征的载荷及边界处理、基于特征的模型简化、基于特征的降维处理等四个方面，讨论了其中的技术关键点及其实现原理。

Owing to the extensive application in the field of computer--aided products design, feature technologies are introduced into the preprocessing procedure of FEA. Then feature--based mesh generation, feature--based external conditions processing, feature--based model simplifying and feature--based dimensionreduction are discussed. Some key techniques to realize the procedure are putforward and systemically clarified.