CAJ | 학술논문

为了保障生产系统的连续性并降低其维修成本，提出一种以马尔可夫决策理论为基础的维修策略动态选择方法。在综合考虑系统运行成本、缓冲库存成本、设备维修成本及停机损失成本的基础上，构建了生产系统可靠性成本模型。该模型以带有中间缓冲区的二级生产系统为研究对象，以设备状态和缓冲库存量为自变量，以可靠性成本为目标函数。利用随机动态规划方法对模型求解，推导出系统在不同状态下的最优维修策略，为生产线设计和维修计划的制定提供依据。最后，通过实例验证了模型的有效性和可行性。
위료보장생산계통적련속성병강저기유수성본，제출일충이마이가부결책이론위기출적유수책략동태선택방법。재종합고필계통운행성본、완충고존성본、설비유수성본급정궤손실성본적기출상，구건료생산계통가고성성본모형。해모형이대유중간완충구적이급생산계통위연구대상，이설비상태화완충고존량위자변량，이가고성성본위목표함수。이용수궤동태규화방법대모형구해，추도출계통재불동상태하적최우유수책략，위생산선설계화유수계화적제정제공의거。최후，통과실례험증료모형적유효성화가행성。
To guarantee continuity and decrease maintenance cost of a production system, a dynamic selec-tion method of maintenance policy based on Markov decision was put forward. On the basis of the compre-hensive consideration to the cost of operating, inventory, maintenance and the cost due to the lost produc-tion, a reliability-cost model was established. The model took the secondary production system as the re-search object, equipment condition and the buffer inventory as independent variables, reliability-cost as ob-jective function. The best maintenance policy in different conditions of production system was derived by method of stochastic dynamic programming, the model can provide basis for design of production line and scheduling the maintenance plan. The example verification proved the effectiveness of the model.