OPTIMAL MINIMAL-REPAIR AND REPLACEMENT PROBLEM UNDER AVERAGE COST CRITERION : OPTIMALITY OF (t, T)-POLICY
OPTIMAL MINIMAL-REPAIR AND REPLACEMENT PROBLEM UNDER AVERAGE COST CRITERION : OPTIMALITY OF (t, T)-POLICY
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平均成本准则下的最优最小维修和更换问题：(t, T)-策略的最优性
DOI：
10.15807/jorsj.40.373
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
M. Ohnishi
中科院分区：
文献类型：
--
作者：
M. Ohnishi
将平均费用准则下的可靠性最小维修更换问题表示为一个半马尔科夫决策过程，并证明了在系统故障率单调增加到无穷大的假设下，在所有允许策略中存在一个最优的(t，T)策略。A(t，T)-策略意味着在年龄t之前的故障是最小的，但当达到年龄t时或当年龄t之后的第一个故障发生时(以先发生者为准)，系统将被替换。
The optimal minimal-repair and replacement problem of a reliability under the average cost criterion is formulated as a semi-Markev decision process, and it is shown that there is a (t,T)-policy which is optimal among all allowable policies, under the assumption that the failure rate of the system monotonically increases to infinity. A (t,T)-policy implies that a failure befbre age t is rninimal}y but the system is replaced when age T is reached or whell the first failure after age t occurs whiehever first.