关键词: 共享虚拟环境, 协同设计, 虚拟装配

Abstract: By researching in collaboration design theory, collaborative design based on virtual model and virtual assembly, architecture of virtual collaborative design environment for assembly (VCDEFA) is presented. VCDEFA intends to aid the real time transmission of 3D virtual models and semantic about collaborative design action on geographic distributed net virtual design system, and to establish a virtual collaborative design environment which supports real-time response for collabora-tion operation and dynamic loading virtual models. The con-ception and character of VCDEFA are given. Six layers’ archi-tecture and function model of VCDEFA are addressed. In pro-totype system, virtual models are obtained from Pro/E system. Digital increased transmission and central management are adopted to assure the consistency of design data. Message length dynamic control technology is adopted. A prototype system instance manifess that the system has good practicability, and the architecture can satisfy requirement of virtual collabo-rative design.

Key words: Collaborative design, Virtual assembly Shared virtual environment