融合设计与试验信息的弹上产品贮存寿命评估方法

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关键词：弹上产品；失效率模型；设计信息；试验信息；贮存寿命评估；Copula函数 中图分类号：TB114.3 文献标志码：A DOI： 10.12305/j.issn.1001-506X.2026.03.14

Storage life evaluation method for missile-borne products integrating information from design and testing

ZHANG Shengpeng1，2 *， HUANG Shuo²， XU Ruyuan²， MA Xiaobingl （1.SchoolofReliabilityand Systems Engineering，Beihang University，Beijing lOo191，China; 2.Aerospace Science and Industry Defense Technology Research Testing Center，Beijing l00854，China）

Abstract：Storage lifeevaluationofmisile-borme products donotfullyutilizedesign information，andfailurecriteria do not directlyreflect the failure mechanisms during thedepletion phase.Conductingan in-depth studyon storage life evaluation under multi-parameter coupling whileconsidering these issues is of great significance.Inregardtothis，a storage life evaluation method for evaluating the storage lifeof misile-borne products by integrating multiple sourcesof designand experimental information isproposed.Firstly，astorage lifecharacterization indexisestablishedusingfailurerateas the lifespancriterion，the influencing factorsofstorage lifeisanalyzed，andthesourcesof designand test informationis clarified.Secondly，basedonthe generalized stress-strength interference model，aproduct failurerate modelisconstructed that comprehensively considers the discreteness of design parameters， the randomness of storage conditions，and the degradation of performance parameters.Thirdly，the failure rate modelis generalized toamulti-parameter scenario using the Copula function.Givenafailureratethreshold，the storage lifeisestimated through geneticalgorithm.Finally，taking a controlamplifierasanexample，theefectiveness ofthe proposed method isverified.The analysis shows thatthe proposed method effctivelysolves the problemof design parameters being unrelated to storage life indicators，providing strong support for the positive design and accurate evaluation of storage life.

Keywords：misile-borme product；failure rate model；design information；testing information；storage life evaluation； Copula function

0引言

存及服役过程中，各种机械应力、化学应力、热应力都将使产品出现性能退化或失效，因此在各型号导弹研制过程中，都将贮存寿命作为一项重点关注的战技指标[。（剩余21003字）