针对基于性能退化数据评估火工品可靠性的方法中,破坏性测量所需样本量较大的问题,提出了电火工品的破坏性测量与非破坏性测量相结合的方法。分析得到了火工品的性能退化服从Wiener过程,并建立相应的退化失效模型,给出参数的估计方法。实例分析得到火工品的可靠性及剩余寿命估计,与仅依靠破坏性测量评估相比,该方法扩大了火工品性能退化数据量,寿命评估的准确性更高。

The initiating explosive device reliability assessment based on performance degradation data, which required a large sample size for destructive measurement, and only used as a key performance value as the failure criterion of failure problem. This paper proposed the initiating explosive device destructive measurement combined with non-destructive measurement. Then we analyzed the explosive performance degradation with Wiener process, which establish the binary Wiener process degradation failure model and give the parameter estimation method. Through the example of prediction and evaluation, the results show that the proposed method is more reliable and universal with single performance degradation data.