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基于ＣＩＭＳ对仿真技术的需求，研究开发了协同ＣＩＭＳ工程各环节和完成ＣＩＭＳ工程设计必不可少的支持环境──加工过程仿真器ＭＰＳ。介绍了ＭＰＳ的结构、关键技术和主要算法（包括几何及运动建模、数控代码翻译、碰撞和干涉检验、材料切除以及加工动画等），提出了实体Ｒａｙ－Ｒｅｐ表达方法（简化了实体间的布尔运算过程，大大提高了材料切除过程的仿真速度）和Ｖｏｘｅｌ十Ｂ－Ｒｅｐ算法（解决了加工过程碰撞和干涉仿真的快速检测问题）。最后给出了ＭＰＳ的应用实例。
Based on the demand of CIMS for simulation technology, the research and development of the collaborative CIMS project and the completion of the CIMS engineering design support environment ─ ─ process simulation MPS. The structure, key technologies and main algorithms of MPS (including geometric and motion modeling, NC code translation, collision and interference checking, material removal and processing animation, etc.) are introduced. An entity Ray-Rep expression method is proposed Boolean operation greatly improves the simulation speed of the material removal process) and the Voxel 10 B-Rep algorithm (which solves the problem of rapid detection of process collision and interference simulation). Finally, the application example of MPS is given.