关键词: 单机调度, 丝锥视情预防性更换策略, 集成优化模型, 丝锥性能可靠度约束

Abstract: Aiming at the problem that the frequent replacement or excessive wear of taps will affect the smooth production scheduling and reduce the production efficiency in the machining industry,a joint optimization strategy of single machine scheduling and condition based replacement of taps was used to research the integrated modeling by taking the minimum total weighted expected completion time of scheduled jobs as the optimal objective and introducing the performance reliability constraint of taps.According to the wear characteristics of the tap,the degradation model was established,and the parameters were estimated based on the actual wear data of tap to solve the corresponding joint decision-making problem.The results of the example analysis showed the effectiveness of integration optimization and the significance of considering the constraints of tap performance reliability in the integrated model.

Key words: single-machine scheduling, taps condition based preventive replacement strategy, integrated optimization model, taps performance reliability constraint