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首页> 外文期刊>IEEE Transactions on Reliability >Component Importance for Multi-State System Lifetimes With Renewal Functions
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Component Importance for Multi-State System Lifetimes With Renewal Functions

机译：具有更新功能的多状态系统生命周期中的组件重要性

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摘要

Importance measures are widely used to characterize the roles of components in systems. The system lifetime can be divided into different life stages. Traditionally, importance measures do not consider the possible effect of the expected number of component failures over a system's lifetime and over different life stages, which, however, has a great effect on the system performance changes, and should therefore be taken into consideration. This paper extends the integrated importance measure (IIM) from unit time to system lifetime, and to different life stages. Based on the renewal functions of components, this measure can evaluate the changes of the system performance due to component failures. This generalization of the IIM describes which component is the most important to improve the performance of the system during the system lifetime and at different life stages. An example of the application of an oil transportation system is presented to illustrate the use of the generalized IIM.
机译：重要性度量被广泛用于表征系统中组件的角色。系统寿命可以分为不同的生命阶段。传统上，重要措施不考虑预期组件故障数量在系统生命周期和不同生命阶段中可能产生的影响，但是，这对系统性能的变化影响很大，因此应予以考虑。本文将综合重要性度量（IIM）从单位时间扩展到系统生命周期，并扩展到不同的生命阶段。基于组件的更新功能，此措施可以评估由于组件故障而导致的系统性能变化。 IIM的一般化描述了在系统生命周期和不同生命周期中，哪个组件对提高系统性能最重要。给出了一个石油运输系统的应用示例，以说明广义IIM的使用。

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