摘要
针对高可靠、长寿命的高价值弹药抽样问题,提出一种高价值弹药导弹寿命评估抽样方法。通过该方法研究高价值弹药导弹寿命服从Weibull分布时样本容量、贮存时间、可靠性评估精度之间的内在关系,给出揭示三者关系的数学公式。结果表明:新方法解决了单发价值高、可供试验研究的样本少、贮存年限(生产年份)不一的高价值弹药导弹可靠性试验最小样本容量问题,为科学评估其贮存寿命提供理论参考;运用新方法对贮存8 a的某型号高价值弹药进行抽样,在置信度0.9、可靠性评估精度指标0.15条件下,该批次贮存8 a的高价值弹药最小样本容量取9发。
A sampling method for life evaluation of high-value ammunitions is proposed.The sampling problem of high-value ammunition with high reliability and long life is studied.The intrinsic relationship among sample size,storage time,reliability evaluation accuracy of high-value ammunition when its life-span obeys Weibull distribution is studied,and the mathematical formulas to reveal the relationship among them are given.High-value ammunition has the following characteristics:high single-shot value,fewer samples for experimental study,and different storage years(productive year).These bring a series of difficulties to its sampling.This paper solves the problem of minimum sample size of high-value ammunition in reliability test,and provides theoretical support for scientific evaluation of its storage life.The method is used to sample a certain type of high-value ammunitions stored for 8 years.The minimum sample size of this batch of high-value ammuitions stored for 8 years is 9 with the confidence of 0.9 and the reliability evaluation accuracy index of 0.15.
作者
牛跃听
赵晖
李妍
穆希辉
张国志
NIU Yueting;ZHAO Hui;LI Yan;MU Xihui;ZHANG Guozhi(Equipment Technology Research Institute, Shenyang Ligong University, Shenyang 110159, Liaoning, China;Unit 32181 of PLA, Shijiazhuang 050000, Hebei, China;Department of Mathematics, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2020年第7期1434-1440,共7页
Acta Armamentarii
基金
国家自然科学基金项目(61471385)
弹药导弹保障技术重点实验室基金项目(2017SYSJ008)。
关键词
高价值弹药
导弹
弹药贮存
可靠性试验
最小样本容量
high-value ammunition
missile
ammunition storage
reliability test
minimum sample size
作者简介
牛跃听(1978—),男,教授,E-mail:zdkjnyt@163.com;通讯作者:李妍(1983—),女,副教授,E-mail:neu_liyan@163.com。
