基于过程集成的闭环动态工艺规划系统  

CLOSED-LOOP AND DYNAMIC PROCESS PLANNING SYSTEM BASED ON PROCESSING INTEGRATION APPROACH

作　　者：王先逵[1] 李志忠[1] 刘成颖[1] 田文生[1] 

机构地区：[1]清华大学

出　　处：《机械工程学报》1995年第4期18-24,共7页Journal of Mechanical Engineering

基　　金：国家科委"八五"攻关项目;863CIMS支持课题

摘　　要：描述了一个在过程上实现工艺规划与车间规划集成的闭环动态工艺规划系统，建立了实用化ＣＡＰＰ系统的新模型，丰富了动态ＣＡＰＰ的概念。它能根据车间环境的状态，充分利用制造工艺和车间环境的柔性产生优化的工艺方案。系统在车间环境约束下采用专家系统技术进行非线性工艺规划，产生可选工艺路线和工序可选设备。在一个由工艺路线选择、设备动态优化选择和车间优化规划构成的闭环系统中，以高生产效率为目标，根据推广的关键路线分析的结果和一系列启发式知识动态地选择工艺路线和设备，最后获得有较高实践意义的结果。A dynamic process Planning system, which integrates nonlinear process planning and job shop scheduling at the processing level but not result level, is presented.Taking advantage of the flexibility of manufacturing Process and job shop environment,it reaches a nearly optimal solution according to the dynamic status of job shop environment. An expert system of nonlinear process planning generates alternative routes for every Product and alternative machines for every machining operation. In the closed-loop that combined of route selection, machine selection and job shop scheduling, several he uristic rules based on CPA (Critical Path Analysis) are used to select nearly optimal route and machines dynamically to gain a nearly highest production efficiency. All these techniques are described in detail.

关 键 词：CAPP 车间 规划 专家系统 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]