计算机集成制造系统中的仿真技术

经验和分析表明,仿真技术已成为 CIMS 设计、分析、运行和鉴定的有力工具.另一方面,CIMS 中仿真技术的应用对仿真技术的发展也提出了新的挑战,从而必将进一步推动仿真技术自身的发展和完善.本文主要包括以下几部分内容:(1)概述面向 CIMS 的仿真建模方法学:包括常用的面向进程和事件的建模、Petri 网、Petri 网与知识基组合方法及面向对象建模方法等;(2)对仿真语言面向 CIMS 的发展提出了若干建议;(3)将并发工程概念引入仿真领域,提出一种并发仿真工程环境新建议;(4)讨论了知识系统与仿真技术的结合,给出了作者开发的 FMS 专家系统实例,并进一步讨论了其应用现状及存在的问题;(5)阐述了仿真优化技术在 CIMS 仿真中的作用以及有待解决的问题;(6)讨论了 CIMS 中的嵌入式仿真技术.

SIMULATION TECHNOLOGY IN CIMS

Experience and analysis have shown that the simulation technology (ST) is a powerful tool for the de-sign,analysis,operation and validation of CIMS.The application of ST in CIMS gives a new challenge tothe development of ST,which can further promote ST itself development and improvement.This paper includes the following sections:(1)introducing CIMS-oriented simualation methodology,including process-oriented modelling,event-oriented modelling,Petri net,knowledge-base compositemethod and object-oriented method etc;(2) presenting some suggestions for the development ofCIMS-oriented simulation language;(3)introducing the concept of concurrent engineering into simulationarea and presenting a new concurrent simulation engineering environment suggestion;(4) discussing thecombination of knowledge system and ST,current situation of its application some open questions; (5) cx-plaining the position of simulation-optimization technique in the simulation of CIMS and the relatedproblems to be solved;(6)discussing the research subjects of nested simulation technology into CIMS.