电器与能效管理技术Issue(11)：1-7,34,8.DOI:10.16628/j.cnki.2095-8188.2023.11.001
密封电磁继电器失效机理一致性判别方法研究
Study on Failure Mechanism Consistency Identification of Hermetically Sealed Electromagnetic Relay
摘要
Abstract
Hermetically sealed electromagnetic relay(HSER)used in aviation and aerospace have high requirements for long-term on-load reliability.Accelerated degradation test is usually used to predict reliable life.In the multi-stress accelerated degradation test,the failure mechanism of HSER must be consistent,otherwise the product life prediction will have a large deviation.Therefore,the study on the failure mechanism consistency of accelerated degradation test is of great significance to improve the accuracy of reliable life prediction of HSER.Firstly,based on the principle of likelihood ratio detection,a consistency criterion is proposed to design an accelerated degradation test for a typical HSER.The test data is analyzed,and the consistency is checked by the criterion.After obtaining a consistency conclusion,the destructive physical experiments are carried out to analyze the degradation of the permanent magnet and spring.The effectiveness of the proposed criterion is verified.关键词
密封电磁继电器/失效机理一致性/似然比检验/破坏性物理试验Key words
hermetically sealed electromagnetic relay(HSER)/failure mechanism consistency/likelihood-ratio test/destructive physical analysis(DPA)分类
信息技术与安全科学引用本文复制引用
杨昕宇,由佳欣,付饶,陈乐羽,曾宇涵..密封电磁继电器失效机理一致性判别方法研究[J].电器与能效管理技术,2023,(11):1-7,34,8.基金项目
国家自然科学基金项目(NSFC52177134) （NSFC52177134）
