| 徐如远,张生鹏,唐宇彬,倪瑞政,李昊.基于非线性退化模型的老产品单应力加速试验加速因子评估方法[J].装备环境工程,2025,22(5):13-19. XU Ruyuan,ZHANG Shengpeng,TANG Yubin,NI Ruizheng,LI Hao.Evaluation Method of Acceleration Factors for the Single-stress Accelerated Test of Old Products Based on the Nonlinear Degradation Model[J].Equipment Environmental Engineering,2025,22(5):13-19. |
| 基于非线性退化模型的老产品单应力加速试验加速因子评估方法 |
| Evaluation Method of Acceleration Factors for the Single-stress Accelerated Test of Old Products Based on the Nonlinear Degradation Model |
| 投稿时间：2025-03-28 修订日期：2025-05-15 |
| DOI：10.7643/issn.1672-9242.2025.05.003 |
| 中文关键词: 老产品 小子样 单应力 非线性退化 加速因子评估 贮存寿命评估中图分类号:TB114.3 文献标志码:A 文章编号:1672-9242(2025)05-0013-07 |
| 英文关键词:old products small sample size single stress nonlinear degradation acceleration factor evaluation storage life evaluation |
| 基金项目:装备预先研究共用技术项目(50904060202) |
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| Author | Institution |
| XU Ruyuan | Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854, China |
| ZHANG Shengpeng | Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854, China |
| TANG Yubin | Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854, China |
| NI Ruizheng | Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854, China |
| LI Hao | Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854, China |
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| 中文摘要: |
| 目的 针对老产品单应力加速贮存试验场景下贮存寿命难以评估的问题，开展基于非线性退化模型的加速因子评估方法研究。方法 基于非线性退化模型，利用最小二乘法对产品自然贮存和加速贮存试验数据进行拟合分析，并计算不同阶段退化速率的比值。结果 利用非线性退化模型不同阶段的退化速率比值实现了产品加速因子评估，与传统线性模型结果进行对比，加速因子、贮存试验等效贮存寿命、贮存试验外推寿命的误差分别为9.68%、2.80%、10.84%。结论 该方法可有效地解决老产品单应力加速贮存试验中的加速因子评估问题，为小子样产品寿命准确评估提供支撑。 |
| 英文摘要: |
| To address the problem of difficulty in evaluating the storage life under the scenario of single-stress accelerated storage tests for old products, the work aims to study the evaluation method of the acceleration factors based on the nonlinear degradation model.The natural storage and accelerated storage test data of products were fitted and analyzed with the least squares method based on the nonlinear degradation model, and the ratios of the degradation rates at different stages were calculated. The acceleration factors of the product were evaluated by the ratio of degradation rates at different stages of the nonlinear degradation model, and the results were compared with those of the traditional linear model. The errors of acceleration factors, equivalent storage life of storage test, and extrapolated storage life of storage test were 9.68%, 2.80%, and 10.84%, respectively. This method can effectively solve the problem of evaluating the acceleration factors in single-stress accelerated storage tests for old products, providing support for the accurate assessment of the life of small-sample products. |
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