A simulation system based on virtual reality technology is developed to solve the problems of model rendering and interaction in the design of TBM,which can be used to observe the system components and working process of the equipment by human-computer interaction.The SolidWorks is used to build the 3D models of TBM,including cutter,driving system,propulsion system and supporting system etc,and finish the whole assembly.The CAD models are simplified,rendered and 3D animation made using Maya software.All the scene files,sounds and pictures are imported into the Unity 3D to be integrated and the human-computer interaction interfaces are de-signed simultaneously.Virtual scenes and HTC Vive equipment are combined through the SteamVR Plugin,with C#language and Steam-VR Unity Toolkit script and preset tool set to write programs for completing of equipment simulation system.The realization of various mechanism motions and collision detection in many ways are mainly considered.For example,the HTC Vive helmet allows for 360 degree viewing scenes with roaming capabilities,the control handles can simulate the human hands to interact with the models and menus in the scene,which make the system has better interactivity and immersion.%针对TBM设计过程中模型渲染和交互的不足,开发了一种基于虚拟现实技术的仿真系统,可以通过人机交互的方式观察装备的系统组成和工作过程.使用SolidWorks软件建立TBM的三维模型,包括刀盘刀具、驱动系统、推进系统和后配套系统等部分并完成整体装配,使用Maya软件对CAD模型进行面片精简、材质渲染并制作机构的三维动画;将所有场景文件、声音和图片等导入Unity 3D引擎进行整合并设计人机交互界面,通过SteamVR插件将虚拟场景内容和HTC Vive虚拟现实硬件设备相结合,利用C#语言并借助SteamVR Unity Toolkit脚本和预设工具集合编写程序来完成装备仿真系统的开发.该系统重点考虑了机构各种运动的实现和多种方式的碰撞检测,HTC Vive头盔可以实现360度观看场景且具有漫游功能,操控手柄可以模拟人手与场景中模型、菜单进行交互,从而具有较好的交互性和沉浸感.
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