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Failure mechanism dependence and reliability evaluation of non-repairable system

机译:不可修复系统的故障机制依赖性和可靠性评估

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摘要

Reliability study of electronic system with the physics-of-failure method has been promoted due to the increase knowledge of electronic failure mechanisms. System failure initiates from independent failure mechanisms, have effect on or affect by other failure mechanisms and finally result in system failure. Failure mechanisms in a non-repairable system have many kinds of correlation. One failure mechanism developing to a certain degree will trigger, accelerate or inhibit another or many other failure mechanisms, some kind of failure mechanisms may have the same effect on the failure site, component or system. The destructive effect will be accumulated and result in early failure. This paper presents a reliability evaluation method considering correlativity among failure mechanisms, which includes trigger, acceleration, inhibition, accumulation, and competition. Based on fundamental rule of physics of failure, decoupling methods of these correlations are discussed. With a case, reliability of electronic system is evaluated considering failure mechanism dependence. (C) 2015 Elsevier Ltd. All rights reserved.
机译:由于对电子故障机制的了解不断增加,因此促进了使用故障物理方法对电子系统进行可靠性研究。系统故障源于独立的故障机制,对其他故障机制有影响或影响,最终导致系统故障。不可修复系统中的故障机制具有多种相关性。一个发展到一定程度的故障机制将触发,加速或抑制另一个或许多其他故障机制,某些故障机制可能会对故障部位,组件或系统产生相同的影响。破坏性影响将累积并导致早期故障。本文提出了一种考虑失效机制之间相关性的可靠性评估方法,包括触发,加速,抑制,累积和竞争。基于失效的物理基本原理,讨论了这些相关性的解耦方法。在这种情况下,考虑故障机制的依赖性来评估电子系统的可靠性。 (C)2015 Elsevier Ltd.保留所有权利。

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