带缓冲串行生产系统预防性维护建模及运行参数优化研究

Preventive Maintenance Modeling and Operation Parameter Optimization for Series Production Systems with Intermediate Buffers

为了保证串行生产系统的产能和提高系统可靠性,提出了带缓冲区的串行生产系统预防性维护决策模型。首先,分析了生产线各执行单元可靠性和运行参数之间的关系,建立了考虑执行单元运行参数和缓冲库存的维护模型。在此基础上,结合串行生产线的特点,建立综合考虑维护成本、有效运行速度和缓冲库存的多目标优化函数。最后,构建启发式算法求解目标函数,并以串行包装生产线为例进行仿真实验分析,结果表明本文所建模型是有效且实用的。

To ensure the throughput and improve the system reliability,a model for decision-making of preventive maintenance for series systems with buffers is presented.First,by analyzing the relationship between reliability of each execution unit of production line and operating parameters,a maintenance model considering the operating parameters of execution unit and buffer is established.On this basis,integrating the characteristics of series production lines,a multi-objective optimization model considering maintenance cost,effective operating speed and buffer capacity is established.Finally,a heuristic algorithm is constructed to solve the objective function,and the simulation of a serial packaging production line is carried out,and the results show that the presented model is effective and practical.