For torpedo electronic components tested by functional verification, there are characteristics of a few samples and few failures. During service life, it is difficult to analyse and predict the changes in reliability. At present, management's observation of quality is mainly base on failure data, and it is difficult to make predictions about the moments without failure in service life. In this paper, according to the failure data, we consider such factors as performance degradation and detection and use the model of instantaneous failure rate to evaluate the reliability of the detection moments periodically, and predict the reliability of stages through the results of detection moments. The method proposed in this paper, on the one hand, considers the service experience, and on the other combines the detection data, to make the final evaluation result more credible. In addition, this paper predicts the changing trend of reliability between adjacent detection moments, which can provide a useful reference for quality management work.

中文翻译：

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鱼雷电子元件寿命可靠性预测

经功能验证测试的鱼雷电子元件，具有样品少、故障少的特点。在使用寿命期间，很难分析和预测可靠性的变化。目前，管理层对质量的观察主要是基于失效数据，很难预测使用寿命中没有失效的时刻。本文根据故障数据，考虑性能退化和检测等因素，利用瞬时失效率模型周期性地评价检测矩的可靠性，并通过检测矩的结果预测各阶段的可靠性。本文提出的方法，一方面考虑服务体验，另一方面结合检测数据，使最终的评估结果更加可信。此外，本文预测了相邻检测时刻之间可靠性的变化趋势，可为质量管理工作提供有益的参考。