关键词: 虚拟环境, 装配, 信息模型, 信息获取, 信息应用

Abstract: Methods about information acquisition and reuse for virtual assembly were introduced，which could realize the rapid construction of virtual assembly environment and provide data support for the virtual assembly system. Firstly, the information model for the virtual assembly system was set up so as to realize the association between the information sources and virtual assembly system. According to the different sources, information was divided into three ways to acquire：based on CAD system, users input, and assembly planning module. Then, the acquired information was applied in the assembly planning module and assembly verification module of virtual assembly system. Finally, an example was provided to illustrate the process of information acquisition and application.

Key words: virtual environment, assembly, information model, information acquisition, information application