摘要
针对混流装配线工序加工资源需求多样、工艺复杂、装配工期长等问题,采用Petri网和改进遗传算法对该问题进行优化求解。建立混流装配线赋时库所Petri网(timed place Petri net, TPPN)调度模型,基于模型激发序列,采用基于工序的编码方式进行染色体编码;采用精英保留策略选择优异个体,改进遗传算法的交叉、变异操作,用改进后的遗传算法求解混流装配线调度问题。通过对比案例及实例数据计算结果验证了方案的有效性。
Aiming at the problems of diverse processing resource requirements,complex process and long production period on mixed-flow assembly line,the Petri net and improved genetic algorithm were used to optimize the solution of the problem.According to the process flow of the mixed assembly line,the timed place Petri net(TPPN)scheduling model of the mixed assembly line was established.Based on the excitation sequence of the Petri Net model,the chromosome coding method based on the process was used.The elite retention strategy was used to select outstanding individuals,and the crossover and mutation operations of genetic algorithm were improved.The improved genetic algorithm was used to solve the mixed-flow assembly line scheduling problem.The effectiveness of the scheme is verified by comparing the calculation results of cases and example data.
作者
高慕云
李榜华
马浩亮
张福礼
贺可太
GAO Mu-yun;LI Bang-hua;MA Hao-liang;ZHANG Fu-li;HE Ke-tai(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;Precision Assembly Shop,Beijing Institute of Aerospace Control Devices,Beijing 100854,China)
出处
《计算机工程与设计》
北大核心
2024年第6期1674-1682,共9页
Computer Engineering and Design
基金
国防基础科研计划重大基金项目(JCKY2018203A002)。
关键词
混流装配线
多资源调度
赋时库所佩特里网
改进遗传算法
交叉策略
变异策略
调度规则
mixed-flow assembly line
multi-resource scheduling
timed place Petri net
improved genetic algorithm
crossover strategy
mutation strategy
scheduling rules
