【作者】 唐成； 薛标； 王利侠；

【Author】 TANG Cheng;XUE Biao;WANG Li-xia;Xi’an Modern Chemistry Research Institute;

【机构】 西安近代化学研究所；

【摘要】 导弹战斗部为一次性使用产品,采用免维修设计,在贮存过程中,战斗部受到温、湿度、冲击、振动等环境因素影响,导致材料老化、腐蚀、含能材料性能衰退等物理或化学变化,随着贮存年限的增加,其可靠性呈下降趋势。战斗部贮存可靠性试验数据具有删失性,且大多数情况下无寿终数据,在战斗部贮存可靠性试验的基础上,考虑试验数据的删失性,采用威布尔分布函数和最大似然估计方法得到了某型战斗部贮存可靠度及其贮存寿命。由评估结果可知,某型战斗部贮存可靠度及寿命满足设计指标要求,由于考虑了试验结果数据的删失性,评估结果更加合理,为该型战斗部贮存使用提供了理论支撑。更多还原

【Abstract】 Warhead are disposable products,maintenance-free,during storage,warheads are affected by environmental factors, such as temperature, humidity, impact and vibration, which lead to physical or chemical changes such as material aging, corrosion and performance deterioration of energetic materials. With the increase of storage life,the reliability of warheads decreases. Storage of reliability test data is censored. On most occasions,there is no end-of-life data. On the basis of warhead storage reliability test data,considering censoring of data,Weibull distribution function and maximum likelihood estimation are used,the storage reliability and life of a warhead are obtained. From the evaluation results,the storage reliability and life of a warhead meet the design requirements. Because considering censoring of experimental data,the evaluation results are more reasonable. It provides theoretical support for the storage and use of this warhead.更多还原