Optimal design of MAS-ADT considering the influence of minimum accelerated stress

IF 4.4 2区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY
Yang Qi (齐洋) , Bin Wu (吴斌) , Bin Suo (锁斌)
{"title":"Optimal design of MAS-ADT considering the influence of minimum accelerated stress","authors":"Yang Qi (齐洋) ,&nbsp;Bin Wu (吴斌) ,&nbsp;Bin Suo (锁斌)","doi":"10.1016/j.apm.2025.116059","DOIUrl":null,"url":null,"abstract":"<div><div>The minimum acceleration stress directly affects the extrapolation accuracy and acceleration effect of the degradation model of the accelerated degradation test, which in turn affects the accuracy of the reliability assessment and the efficiency of the accelerated test. Aiming at the problem that the minimum acceleration stress is given empirically, this paper proposes a method to determine the minimum acceleration stress by considering the extrapolation accuracy and acceleration effect. The optimal minimum accelerated stress is obtained by the algorithm, and other design variables such as the sample size and the number of tests are taken into account to establish a multi-objective optimal design model of minimum accelerated stress-accelerated degradation test (MAS-ADT), genetic algorithm and gradient descent are applied to search for the optimal solution with the highest model accuracy. The sensitivity analysis of the proposed optimization model is carried out, and the results show that the model has good robustness. Finally, the optimal design of electrical connectors with and without cost constraints is investigated, which shows that the proposed method has good practical application value.</div></div>","PeriodicalId":50980,"journal":{"name":"Applied Mathematical Modelling","volume":"144 ","pages":"Article 116059"},"PeriodicalIF":4.4000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Mathematical Modelling","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0307904X25001349","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The minimum acceleration stress directly affects the extrapolation accuracy and acceleration effect of the degradation model of the accelerated degradation test, which in turn affects the accuracy of the reliability assessment and the efficiency of the accelerated test. Aiming at the problem that the minimum acceleration stress is given empirically, this paper proposes a method to determine the minimum acceleration stress by considering the extrapolation accuracy and acceleration effect. The optimal minimum accelerated stress is obtained by the algorithm, and other design variables such as the sample size and the number of tests are taken into account to establish a multi-objective optimal design model of minimum accelerated stress-accelerated degradation test (MAS-ADT), genetic algorithm and gradient descent are applied to search for the optimal solution with the highest model accuracy. The sensitivity analysis of the proposed optimization model is carried out, and the results show that the model has good robustness. Finally, the optimal design of electrical connectors with and without cost constraints is investigated, which shows that the proposed method has good practical application value.
考虑最小加速应力影响的MAS-ADT优化设计
最小加速度应力直接影响加速退化试验退化模型的外推精度和加速效应,进而影响可靠性评估的准确性和加速试验的效率。针对经验给出最小加速度应力的问题,提出了一种考虑外推精度和加速度效应的最小加速度应力确定方法。该算法得到最优的最小加速应力,并考虑样本量和试验次数等设计变量,建立最小加速应力-加速退化试验(MAS-ADT)多目标优化设计模型,采用遗传算法和梯度下降法寻找模型精度最高的最优解。对所提出的优化模型进行了灵敏度分析,结果表明该模型具有良好的鲁棒性。最后,对有和无成本约束的电连接器进行了优化设计研究,表明该方法具有良好的实际应用价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Applied Mathematical Modelling
Applied Mathematical Modelling 数学-工程:综合
CiteScore
9.80
自引率
8.00%
发文量
508
审稿时长
43 days
期刊介绍: Applied Mathematical Modelling focuses on research related to the mathematical modelling of engineering and environmental processes, manufacturing, and industrial systems. A significant emerging area of research activity involves multiphysics processes, and contributions in this area are particularly encouraged. This influential publication covers a wide spectrum of subjects including heat transfer, fluid mechanics, CFD, and transport phenomena; solid mechanics and mechanics of metals; electromagnets and MHD; reliability modelling and system optimization; finite volume, finite element, and boundary element procedures; modelling of inventory, industrial, manufacturing and logistics systems for viable decision making; civil engineering systems and structures; mineral and energy resources; relevant software engineering issues associated with CAD and CAE; and materials and metallurgical engineering. Applied Mathematical Modelling is primarily interested in papers developing increased insights into real-world problems through novel mathematical modelling, novel applications or a combination of these. Papers employing existing numerical techniques must demonstrate sufficient novelty in the solution of practical problems. Papers on fuzzy logic in decision-making or purely financial mathematics are normally not considered. Research on fractional differential equations, bifurcation, and numerical methods needs to include practical examples. Population dynamics must solve realistic scenarios. Papers in the area of logistics and business modelling should demonstrate meaningful managerial insight. Submissions with no real-world application will not be considered.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信