CAJ | 학술논문

目的：研究长期贮存产品的贮存寿命评估方法。方法采用步进应力加速贮存寿命试验，对原始试验数据进行预处理后建立性能退化轨道，得到产品伪寿命值，然后对高加速应力水平下的贮存寿命分布进行假设检验及参数估计，最后根据加速方程外推到常应力水平下的贮存寿命分布。结果推测出正常贮存条件下的产品贮存寿命。结论该方法避免了复杂的性能退化模型分析和建模工作，能有效地对样本量少、无失效信息的贮存产品进行贮存寿命评估。
목적：연구장기저존산품적저존수명평고방법。방법채용보진응력가속저존수명시험，대원시시험수거진행예처리후건립성능퇴화궤도，득도산품위수명치，연후대고가속응력수평하적저존수명분포진행가설검험급삼수고계，최후근거가속방정외추도상응력수평하적저존수명분포。결과추측출정상저존조건하적산품저존수명。결론해방법피면료복잡적성능퇴화모형분석화건모공작，능유효지대양본량소、무실효신식적저존산품진행저존수명평고。
Objective To study the method to evaluate storage life for long-term storage products. Methods With the preprocessed data from the step stress accelerated storage life test, performance degradation path was built to obtain the pseudo life. After estimating parameters of the life distribution at high stress levels, storage life distribution in normal stress level was extrapolated by the acceleration equation. Results Storage life under normal storage condition was deduced. Conclusion The method proposed in this paper could avoid complicated performance degradation modeling and effectively evaluate the storage life of products with small sample volume and little failure information.