电子学报2017，Vol.45Issue(5)：1084-1089,6.DOI:10.3969/j.issn.0372-2112.2017.05.009
融合非线性加速退化模型与失效率模型的产品寿命预测方法
Life Prediction Approach by Integrating Nonlinear Accelerated Degradation Model and Hazard Rate Model
摘要
Abstract
It is difficult to predict the life of highly-reliable products when the failure data are rare and the testing is costly.As such,based on the degradation data and failure data in the developing or accelerate testing stages,a life prediction method is proposed by integrating nonlinear accelerate degradation model and hazard rate model.The degradation process is first modeled as a nonlinear degradation process and the parameter estimation is achieved by analyzing the degradation process.Then an accelerate model is adopted and its parameters are estimated based on the accelerated degradation data to build the relationship between the parameters of the degradation model and stress levels.Further,the Cox proportional hazard model is adopted to fuse the failure data and censored data.To do so,the reliability function can be computed and the life of the product can be predicted accordingly.Finally,the usefulness and practical value of the presented method is demonstrated through the case application.关键词
寿命预测/非线性模型/加速退化/失效率Key words
life prediction/nonlinear model/accelerate degradation/hazard rate分类
信息技术与安全科学引用本文复制引用
周绍华,胡昌华,司小胜,方世鹏,裴洪..融合非线性加速退化模型与失效率模型的产品寿命预测方法[J].电子学报,2017,45(5):1084-1089,6.基金项目
国家杰出青年基金(No.61025014) （No.61025014）
国家自然科学基金(No.61573365,No.61174030, No.61104223,No.61374120) （No.61573365,No.61174030, No.61104223,No.61374120）
