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首页> 外文会议>Reliability and Maintainability Symposium (RAMS), 2012 Proceedings - Annual >Operational availability modeling and simulation evaluation
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Operational availability modeling and simulation evaluation

机译：运营可用性建模和仿真评估

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摘要

In this paper, we first investigate the concept and measuring models of system operational availability, and their limitations. To overcome the limitations of the existing models, we present an instantaneous operational availability model and an average operational availability model, as well as a simulation-based method for evaluating those two models. The distinction between the two models is illustrated by simulation examples. The sensitivity analysis of impacting factors shows that the inherent reliability of a system is the key factor affecting the operational availability, thus improving system inherent reliability is the most effective way to improve the operational availability. The second most important factor is the number of initial spare parts. Analysis results also show that the operational availability has not increased significantly by increasing the number of maintenance personnel or cutting down the mean maintenance time.
机译：在本文中，我们首先研究系统操作可用性的概念和度量模型及其局限性。为了克服现有模型的局限性，我们提出了一个瞬时运营可用性模型和一个平均运营可用性模型，以及一种用于评估这两个模型的基于仿真的方法。仿真示例说明了这两种模型之间的区别。影响因素的敏感性分析表明，系统的固有可靠性是影响运营可用性的关键因素，因此，提高系统固有的可靠性是提高运营可用性的最有效方法。第二个最重要的因素是初始备件的数量。分析结果还显示，通过增加维护人员数量或减少平均维护时间，运营可用性并未显着提高。

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