基于Petri网和Witness的SMT生产物流系统仿真及优化  

Modeling and simulation optimization of SMT production logistics system based on Petri net and Witness

作　　者：周韶武 胡晓兵[1] 彭正超 但晔 Zhou Shaowu;Hu Xiaobing;Peng Zhengchao;Dan Ye(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学机械工程学院,成都610065

出　　处：《现代制造工程》2020年第11期99-105,共7页Modern Manufacturing Engineering

基　　金：中国制造2025四川行动计划项目(2017ZZ001)。

摘　　要：针对某电装车间表面贴装技术(Surface Mounted Technology,SMT)生产物流系统在实际生产中存在的生产率低、生产线平衡率低以及堵塞率高等问题,采用Petri网建模方法,建立了相关生产线的Petri网模型。结合关联矩阵和状态方程的分析方法,验证了模型的有效性,使用Witness软件对模型进行仿真,找到了生产系统的瓶颈工序,并对系统进行了优化。优化后的仿真结果表明:模型的瓶颈工序被消除,并且生产线平衡率提高了将近20%。To address the problems of low productivity,low balance rate and high clogging rate existing in the actual production of Surface Mounted Technology(SMT)production logistics system in an electric assembly workshop,Petri net modeling method was used to establish the Petri net model of processing production line.The effectiveness of the model was verified by combining the analysis method of correlation matrix and state equation,the bottleneck process of production logistics system was obtained by simulation using the Witness software,followed by an optimization whose simulation results show that the bottleneck process is eliminated and the production line balance rate has increased by nearly 20%.

关 键 词：SMT生产物流 PETRI网 Witness软件 仿真优化 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]