系统可用度是可靠性和维修性的综合反映，常用的马尔可夫方法无法给出可修复机电产品的系统可用度计算公式。
System availability is the comprehensive reflection of reliability and maintainability. The system availability calculation formula cannot be derived by common Markov method.
以设备许用可用度为约束条件，以维修成本最低为目标，以维修周期为变量，建立设备维修优化模型。
The allowable availability was selected as constraint, the maintenance cost was identified as optimization objective, the maintenance cycle was as optimal variable, the optimization model was set up.
并在寿命、修理延迟和维修时间均服从指数分布的情况下，用马尔可夫更新过程理论导出了系统的可用度。
When the distribution of life, delayed repair and imperfect repair time are all exponential, Markov renewal process for educing the availability is presented.
利用更新过程理论建立了机会维修策略下的系统模型，并给出了系统瞬态和稳态可用度的求解方法。
A system model with the opportunistic maintenance is built by using the theory of renewal process and the calculation methods of system transient and steady state availability is also presented.
设备维修计划可靠性最大模型的约束条件主要为最大维修费用、最小可用度以及运行总时间；
Optimal maintenance scheduling of components, traction substations and catenaries is formulated for minimum cost, maximum reliability and both.
要在有限的保障经费下实现高可用度要求，就必须建立装甲装备的使用可用度与维修保障费用的优化模型。
Optimization models of armored equipment operational availability and maintenance support cost must be established in order to achieve availability objective under limited support cost.
提出了可用度最大和平均维修费用最低的两种维修间隔期模型，采用专家评分的方式确定二者的重要度，通过计算得出最佳维修间隔期。
Two maintenance interval models with maximum availability and average cost are proposed, and the importance of the two is determined by the way of expert evaluation.
提出了可用度最大和平均维修费用最低的两种维修间隔期模型，采用专家评分的方式确定二者的重要度，通过计算得出最佳维修间隔期。
Two maintenance interval models with maximum availability and average cost are proposed, and the importance of the two is determined by the way of expert evaluation.
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