Summary of mission abort strategies for degraded systems
The mission abort strategy of degraded systems is studied.Firstly,the degraded system is divided into ordinary degraded systems and stochastic process degraded systems,and the abort policies of ordinary degraded system is discussed from the perspective of multi-component,multi-state and multi-stage,and the deactivated strategy of stochastic process degraded system is discussed from the different properties of Wiener,Gamma and other processes.Then,by discussing the practical application of the mission abort strategy model of the de-visualization system,it can be see that UAV is the most widely used field at present.Finally,CiteSpace software is used to analyze the research hotspots,trends and frontiers in this field.The results show that,although it is dif-ficult to establish a degradation model based on stochastic process and consider preventive maintenance,optimal inspection,mission redundancy and perfect or imperfect maintenance while developing mission abort strategy,but it has considerable development space.
degraded systemmission abort strategyreliability evaluationWiener processGamma process
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