中文摘要：

针对带回流复杂制造系统建模的难点,提出三种解决办法：首先提出基于资源的Petri网模型构建模式对系统结构建模,避免随加工步骤增多网规模扩大;其次提出IDEF0与PN相结合的建模方法对系统功能建模,实现对系统及子系统功能以及系统间关系的详细描述;最后通过多种变迁种类的引入实现对系统行为建模。在此模型基础上,构建带回流复杂制造系统仿真器原型,并介绍了该仿真器对投料策略和调度规则的仿真。

英文摘要：

Three methods were proposed to solve something that was hard to be modeled for re-entrant lines. Resource-based Petri net was defined to model the structure of the system, so that the net size would not be expanded rapidly with the process going on. A modeling method which integrated IDEFt with Petri net was given to character the function of system, which could describe the function of the system and sub-system and the relationships among them at length. More than one sort of transition was introduced for the system＇s behavior modeling. A simulation prototype based on the model was proposed and the simulation for the release and dispatching rules were demonstrated.