Abstract: To realize the basis of systematic function and behavior optimization by constructing systematic function behavior model,a modeling and optimization method for mechanical system based on the Petri nets was proposed.In the technical system,the colored Petri nets was combined with the energy flows,material flows and signal flows to describe the systematic behaviors.The types of systematic behaviors could be categorized into series,paralleling and feedback,and an evaluation method to select the target behaviors was put forward according to this classification.Five behavioral improvement routes and a top-to-down method which based on hierarchical modeling process of Petri nets were presented to provide the direction and roadmap for timing optimization of product.An innovative design for the automatic machine of negative electrode shell and silicon seal of button battery was used to verify the effectiveness of proposed method.

Key words: timing, colored Petri nets, behavior analysis, optimizing process, automatic machine

摘要： 为构建系统功能和行为模型以实现系统功能与行为优化,将Petri网建模语言应用于系统行为描述过程,提出一种行为建模与时序优化方法,对系统的动作时序进行改进。将技术系统中的能量流、物料流及信息流元素与有色Petri网结合,定义了系统行为建模语言。将系统行为分为串联、并联及反馈三种类型,并据此提出技术系统行为评定方法,提供系统动作时序的改进目标。提出5条行为优化路径及基于Petri网层次化建模过程的自顶向下行为优化方法,为系统动作时序的改进提供了方向与优化过程模型。将该产品行为建模方法与时序优化过程应用于一种纽扣电池阴极自动扣圈机的改进设计中,验证该行为优化过程模型的有效性。

关键词: 时序, 有色Petri网, 行为分析, 优化过程, 自动扣圈机