Reliability Assessment of Functional Unit Based on Accelerated Degradation Data
This paper describes reliability assessment from measured data of double-stress accelerated degradation test which taking functional unit as research object.Most of performance degradation reliability analyses pay attention to components.Thereby assessments are relatively easy because they have simple function and clear failure mechanism.However,in reality,functional units compose system, and the reliability of a functional unit is affected by all of the jointing components synthetically which puts up a unitary degradation process.On this consideration,double-stress uniformly orthogonal accelerated test is putting on the whole board of functional units under temperature and relative humidity stresses (80℃,55％),(100℃,25％), (90℃,85％),(110℃,65％).Accelerated test design is introduced in this paper and the collected measured degradation data are shown by figures.According to statistical analysis reliability information is inferred from test data and assessment result is compared to results educed by other methods.Conclusion is result gain by this present way and is basically consistent with other studies.Functional unit reliability assessment based on performance degradation data is feasible and reliable.
performance reliability degradation accelerated test double-stress assessment
Yuming Wang Jinyan Cai
Optics and Electronic Engineering Department Ordance Engineering College Shijiazhuang,China
国际会议
2009 8th International Conference on Reliability,Maintainability and Safety(第八届中国国际可靠性、维修性、安全性会议)
成都
英文
1297-1301
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）