面向协同装配设计的STL模型简化研究  

Research on STL model simplification for collaborative assemble design

作　　者：高建武[1] 王军杰[1] 左春 吴德宏 

机构地区：[1]上海交通大学CIMS研究所,上海200240 [2]南京长安汽车有限公司,南京210000

出　　处：《机械设计与制造》2008年第10期226-228,共3页Machinery Design & Manufacture

基　　金：上海市科委重大资助项目(065115008)

摘　　要：针对协同装配设计中模型简化的技术要求:既要保证简化后的模型满足装配接口的精度要求又要能够使模型得到充分的处理,提出了基于装配特征的STL模型简化算法。该算法首先通过对CAD系统的二次开发,提取装配特征的紧扣包围盒信息;其次根据紧扣包围盒信息将STL模型读取为可简化和不可简化的部分;最后通过对Garland算法的一系列改进,对可简化部分模型进行简化处理。通过对该算法的实现应用表明:该算法能很好地满足协同装配设计中模型简化的技术要求。A STL Model Simplification arithmetic based on the assemble feature meets the collaborative assemble design＇ need which asked to keep the accuracy of assemble interfaces and to reduce the detailed information in the STL model. The arithmetic first take the boundary box information of assemble feature through the second development of CAD. Then divides the STL model into to two parts,one for simplification and the other for not,which based on the boundary box information. At last Simples the simplification part using the simplification arithmetic which develops from the Garland＇s arithmetic. Result shows that the arithmetic could well meet the needs asked by the collaborative assemble design.

关 键 词：协同装配设计 紧扣包围盒 STL模型简化 

分 类 号：TH16[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]