虚拟装配关键技术及其发展

虚拟装配技术是虚拟制造技术的关键部分,它主要实现两个层次的映射,即底层用产品虚拟模型映射了产品物理模型,顶层的虚拟装配仿真过程映射了真实的物理装配过程。虚拟装配关键技术主要包括:碰撞检测、零部件建模以及数据交换与集成、装配规划、基于约束的运动导航与精确定位、线缆管路等可变形体零件装配技术、知识的提取与应用和装配评估与验证等。文中对这些关键技术的研究现状进行了综述,并根据研究现状分析了虚拟装配技术中存在的问题以及发展趋势。

Survey on Key Techniques of Virtual Assembly

Virtual Assembly,which is a key element of Virtual Manufacturing(VM),realizes two levels mapping.The bottom level mapping is from product physical model to product virtual model and the top level mapping is from real physical assembly process to virtual assembly simulation process.Virtual Assembly key techniques include:collision detection,part modeling and data exchange/integration,assembly planning,motion navigation and accurate location based on constraints,deformable part assembly,knowledge extraction and application,assembly evaluation and verification,et al.A survey on the present situation of these techniques was proposed.The current deficits and the future research trends were discussed and analyzed based on the survey.