为了支持CRH380BL高速动车组转向架的检修与维护，作者采用虚拟现实、多媒体和仿真等技术，设计开发了动车组转向架检修支持系统。通过可视化的多媒体信息平台，可以高效率地培训检修人员，并提供辅助检修功能，还可以作为相关人员在其它场合的直观交流沟通手段。在介绍转向架结构特点以及系统需求、结构与功能的基础上，详细介绍了转向架的动态三维模型浏览、虚拟装配仿真、多媒体信息集成、交互方式和数据压缩等关键技术的实现。%In order to support repair and maintenance of CRH380BL high-speed EMU bogie, the authors used virtual reality, multimedia and simulation technologies in developing an EMU bogie overhaul virtual simulation support system. It provided a multi-media platform that enables trainees to quickly master the maintenance skills and provides assistance for repair and maintenance as well as a visual channel for communication in other relevant occasions. After a brief introduction of the bogie structure, the paper describes in detail the key technologies for interactive three-dimensional model browsing, virtual assembly simulation, multimedia information integration, interactive techniques and data compression.
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