Abstract: Collaborative virtual assembly technology, which is on the combination of virtual prototyping and virtual reality, is a new hot research. This paper adopts semantic feature modeling based on cellular model, proposes a uniform cooperative virtual assembly environment, which can realize transmission of parts and components. And because what the network transmits is modeling operation based on FDG, the network has a less load and a faster respond speed. Preliminary applications in the collaborative virtual assembly between HUST-CAIDS and UG are also introduced to prove the feasibility of the theories above.

Key words: collaborative virtual assembly, cellular model, semantic feature modeling, heterogeneous CAD system

摘要： 协同虚拟装配技术是虚拟样机技术与虚拟现实技术相结合所产生的一个新的研究热点。基于细胞元表示的语义特征造型技术，提出一种统一的协同虚拟装配框架，在该框架下能够有效支持异构CAD系统间零件及装配体的协同装配。网络传输以特征依赖图存储的操作信息，可降低网络负荷，提高响应速度。该思想初步应用在自主开发的HUST-CAIDS与UG间的异构协同设计中，证明了以上理论的可行性。

关键词: 协同虚拟装配, 细胞元, 语义特征造型, 异构CAD系统

CLC Number: 

• TP391