摘要
基于生产线连续和离散并存的混杂特征,提出了混杂系统的建模及其优化控制方法。研究了加工单元的混杂自动机模型(混杂基本结构),面向生产线的混杂系统可看作若干混杂基本结构的合成,有效地避免了系统规模增长给模型造成的组合爆炸问题。在此基础上,对满足一定产量情况下最大化机器利用率的混杂优化控制方法进行了研究,提出了基于蒙特卡洛法的性能优化仿真计算方法。最后,对某有限缓冲容量串行生产线进行了数值仿真计算,仿真结果验证了该研究方法的可行性和有效性。
To deal with hybrid nature of coexistence of continuity and discreteness in production line, modeling and optimization control methods of hybrid system were proposed. The hybrid automata model of a manufacturing cell （hybrid elementary structure） was studied. The hybrid system oriented to production line could be regarded as the combination of a number of hybrid elementary structures, which could avoid combinatorial explosion of model effectively due to system scale increase. Based on above analysis, the optimal control problem of the hybrid system was studied which maximized utilization rate of machines with certain production output. Numerical simulation based on Monte Carlo method was developed. The feasibility and efficacy of the model and control algorithm were proven via simulation example of a finite buffer capacity tandem line.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2006年第10期1577-1580,1585,共5页
Computer Integrated Manufacturing Systems
基金
中德政府合作资助项目(2002DFG00027)~~
关键词
混杂系统
生产线
建模
优化控制
仿真
hybrid systems
production line
modeling
optimal control
simulation
作者简介
程曙（1967-），女，上海人，同济大学电子与信息工程学院在职博士研究生，高级工程师，主要从事混杂系统理论及其在虚拟制造中的应用、数字化工厂等的研究。E—mail：scheng@mail．tongji．edu．cn。
