Preventive maintenance strategy for detection and buffer optimization in series production system

Abstract

The equipment for series production line as the research object, a preventive maintenance model of joint equipment shutdown detection and equipment buffer optimization is proposed, in which the operation rate change and precision reduce of line production equipment caused by the bottleneck factor of production equipment are considered. The equipment shutdown detection and the size of the device buffer are optimized at the same time in the model. The deterioration state of the equipment is detected by stopping test, and the preventive maintenance plan is adjusted in time. By setting the buffer to reduce downtime of production shutdown process, reduce the equipment failure probability change, reduce the loss caused by the emergence of a series of equipment after shutdown. Finally, the effectiveness of the strategy is verified by the analysis of the two equipment series production system with the production bottleneck characteristics.