摘要
为了提高小样本下火工品可靠性评估的精度,研究了升降法实验及其数据分析方法。结合火工品升降法实验数据的特点,给出了一种数据填充方法,把二元成败型数据转化为虚拟完全样本数据。模拟结果表明,与基于二元成败型数据的估计相比,基于虚拟完全样本数据的位置参数估计基本一致,而刻度参数估计具有更优的统计性质。利用该虚拟样本数据,结合信仰推断方法,给出了火工品可靠性评估方法。最后将该方法应用于某产品的可靠性评估,并与大样本评估方法进行了比较,表明该方法可以在较小样本下实现对高可靠性火工品的可靠性评估。
In order to improve the reliability assessment of an explosive initiator with small samples, the up-down test was studied. And a new arithmetic was put forward to transform the binary data into virtual complete samples. The simulation result shows that the estimate of the scale parameter from the virtual samples is better than that from the binary data while the estimates of the location parameters are approximately the same. Then using the estimates, a reliability assessment method for explosive initiator based on fiducial inference was proposed. The method was used foe the reliability assessment of one explosive initiator, and was compared with the run-down method.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2009年第6期669-672,共4页
Explosion and Shock Waves
关键词
爆炸力学
可靠性评估
数据填充
火工品
虚拟样本
mechanics of explosion
reliability assessment
data filling
explosive initiator
virtual samples
