Abstract: This paper focuses on the product maintainability. It introduces virtual reality technology to the product maintenance operation in the concurrent development mode. That is, maintenance simulation for product in computer-generated virtual reality environment. This paper establishes a virtual maintenance system using passive single three-dimensional protection system as virtual reality environment, employing DELMIA, VRCO VisTool, CDVI, Pro/E soft wares as virtual reality software system. Meantime, it illuminates VR peripheral integration, environmental modeling and data conversion, collision detection, human ergonomic, three-dimensional display and other key technologies. Finally, a sample is given on the validity of the virtual maintenance through certain radar rotating platform maintenance.

Key words: computer application, virtual reality, virtual maintenance simulation system, collision detection, interactive technology, ergonomic