面向大型复杂产品装配的新型虚拟环境系统  

A New Virtual Environment System for Large-Scale Complex Products Assembly

作　　者：郎跃东[1] 姚英学[2] 丁祝顺[1] 夏平均[2] 

机构地区：[1]北京航天控制仪器研究所,北京100854 [2]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《机械设计与制造》2012年第8期248-250,共3页Machinery Design & Manufacture

基　　金：总装"十一五"预研项目(卫星虚拟装配技术)

摘　　要：针对大型复杂产品在装配时的工艺复杂、操作难度大、效率低等问题,利用虚拟现实技术,构建了一个新型沉浸式虚拟环境,用于产品的装配规划和过程培训。研究了系统的并行绘制、立体显示、几何校正、行走机构等关键技术。研制出立体视频生成器,使系统具有良好的显示实时性,并降低了成本。提出一种基于NURBS曲面的几何校正方法,实现虚拟场景在球幕上的正常显示。将该环境应用于卫星的装配规划过程中,由实验验证其可行性与实用性。To deal with the problems of complicated process,difficult operation and low efficiency for large-scale complex products assembly,a new virtual assembly environment system（VAES） was proposed,which applies virtual reality（VR） technology in the process of assembly planning and training.A series of key technologies were proposed,such as parallel rendering,stereoscopic display,geometrical correction,walking machine and so on.A stereo video generator was developed to maintain real-time display and decrease costs.A geometrical correction method based on NURBS surface was presented.The system was applied in the process of satellite assembly,the result showed that it was feasible for the related research and application.

关 键 词：虚拟装配 虚拟环境 立体投影 几何校正 

分 类 号：TH16[机械工程—机械制造及自动化] TP391.9[自动化与计算机技术—计算机应用技术]