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Ordering Policy of Spare Parts in Multi-Unit System for Equivalent-Cycle Preventive Maintenance
Author(s): 
Pages: 95-99
Year: Issue:  4
Journal: Journal of South China University of Technology(Natural Science Edition)

Keyword:  多部件系统备件订货策略订货成本仓储成本等周期预防维修;
Abstract: 影响多部件系统备件订货策略的因素较多,为此将多部件系统预防维修的备件需求分为两种:随机失效部件的更换需求和预防维修时隐患部件的更换需求,在等周期预防维修下,应用概率理论,建立了指数寿命型部件的备件需求模型;在此基础上,以系统役龄内备件的订货、仓储总成本为优化目标,订货次数为优化变量,给出存在备件初始库存和订货提前期时的两种订货策略和策略模型的Visual Fortran仿真优化算法;最后结合算例,求得经济订货次数和策略以及相应的订货、仓储总成本.结果表明,备件订货策略具有周期性,考虑初始库存量、订货提前期、订货成本和备件单位仓储成本等参数的优化决策,可以为现实中备件初始库存不同的企业制订订货策略提供有效参考.
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