具有批量储运环节的装配系统缓存区优化配置

摘要

To analyze the buffer allocation problem of assembly manufacturing system with random bulk transportation process,by taking the minimum investment cost as the objective,a buffer allocation optimal model that considered the cost of WIP and vehicle was established.Based on queuing network,a solving model for system performance was established,and the changing of system performance characteristic with the change of buffer was analyzed.According to the monotone characteristic of system performance,a branch and bound optimization method was put forward by using compressing upper and lower bounds.Several cases were solved with the proposed method,and the calculated performance results were compared with simulation to analyze the influence of buffer allocation results on performance index.%针对具有随机批量储运环节的装配生产系统中的缓存区容量配置问题,以最小化系统成本为目标,建立了考虑在制品数量成本和运输车辆成本的缓存区容量配置优化模型.基于排队网建立该系统的性能求解模型,分析系统性能随缓存区变化的特性.依据系统性能单调变化特性建立了一种压缩上、下界搜索空间的分支定界优化算法,使用该优化方法求解多个算例,并将得到的性能指标结果与仿真结果进行对比验证,分析了缓存区容量配置结果对系统性能指标的影响.