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兵工学报 ›› 2020, Vol. 41 ›› Issue (7): 1434-1440.doi: 10.3969/j.issn.1000-1093.2020.07.022

• 论文 • 上一篇    下一篇

寿命服从Weibull分布时高价值弹药导弹抽样方法

牛跃听1, 赵晖1, 李妍1, 穆希辉2, 张国志3   

  1. (1.沈阳理工大学 装备技术研究院, 辽宁 沈阳 110159; 2.32181部队, 河北 石家庄 050000;3.哈尔滨理工大学 数学系, 黑龙江 哈尔滨 150080)
  • 收稿日期:2019-09-09 修回日期:2019-09-09 上线日期:2020-09-23
  • 作者简介:牛跃听(1978—), 男, 教授。 E-mail: zdkjnyt@163.com
  • 基金资助:
    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)

Sampling Method of High Value Ammunition Based on Weibull Life Distribution

NIU Yueting 1, ZHAO Hui1, LI Yan1, MU Xihui2 , ZHANG Guozhi3   

  1. ( 1.Equipment Technology Research Institute, Shenyang Ligong University, Shenyang 110159, Liaoning, China; 2.Unit 32181 of PLA, Shijiazhuang 050000, Hebei, China; 3.Department of Mathematics, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China)
  • Received:2019-09-09 Revised:2019-09-09 Online:2020-09-23

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。

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

Abstract: 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. Key

Key words: high-valueammunition, missile, ammunitionstorage, reliabilitytest, minimumsamplesize

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