关键词: 动态瓶颈, 质量不确定性, 再制造系统, 有效产出时间, 可视化

Abstract: Aiming at the dynamics of bottleneck station made by multiple uncertainties existed in remanufacturing systems,the remanufacturing systems was taken as the object to propose a new bottleneck index of Effective Through Put Time (ETPT) by considering the dynamic changes of remanufacturing rate,withdrawal rate and processing time leaded by returns'quality uncertainty.Discrete event simulation was adopted to simulate the system operation,and the real time data of each bottleneck workstations index were obtained,which realized the visualization of dynamic bottleneck.The inherent relationship of returns'quality with bottleneck process and system performance was researched by orthogonal test.A lathe spindles remanufacturing line was used to analyze the dynamic bottleneck,and the result showed that return's quality had great influence on system bottleneck and other performances.The proposed bottleneck index and the corresponding approach could provide effective basis for the design and bottleneck analysis of remanufacturing system.

Key words: dynamic bottleneck, quality uncertainty, remanufacturing system, effective throughput time, visualization