面向虚拟样机的机构信息自动识别与提取技术研究  

Automatic Recognition and Extraction of Mechanism Information for Virtual Prototyping

作　　者：万昌江[1] 谭建荣[1] 刘振宇[1] 陆琼[1] 

机构地区：[1]浙江大学机械与能源工程学院,杭州310027

出　　处：《中国机械工程》2004年第18期1630-1634,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 (5 0 3 0 5 0 3 3;60 3 75 0 2 0 );国家重点基础研究发展规划资助项目(2 0 0 2CB3 12 10 6);国家 863高技术研究发展计划资助项目(2 0 0 2AA4113 10 );浙江省自然科学基金资助项目(60 2 0 3 9)

摘　　要：基于产品装配约束信息及工程设计语义信息 ,自动构建零件邻接图 ;通过建立连接单元体识别规则 ,识别构件单元 ;通过运动几何元素求交运算规则及运动几何元素与运动副映射关系 ,自动构建机构模型 ,使机构建模过程简化 ,建模速度与精度提高 ,分析复杂度降低。相关方法在虚拟环境产品性能评测的研究与开发中得到实现 。Based on the assembly constraints and engineering design semantic information, the part adjacent graph was constructed automatically. Depending on recognition rule , the connected units were identified ; by using rules of combination and intersection of motion geometric elements, and the mapping relation between motion geometric elements and motion constraints, the mechanism modeling was simplified, the speed and veracity were increased and the analysis complexity was decreased. The method is implemented in the development of the evaluations of product performances in virtual environment and is applied in the dynamics analyses of automobile engine.

关 键 词：运动约束 装配约束 机构 邻接图 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]