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。
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.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第22期5249-5253,共5页
Journal of System Simulation
基金
中国博士后基金(20060400677)
国家自然科学基金资助项目(70501018)
上海财经大学211资助项目(211-6-44)。
关键词
回流
建模
PETRI网
整合性定义方法论
仿真
Re-entrant
model
Petri net
Integrated Definition Function Modeling (IDEF)
simulation