A case study on the sufficiency of the result given by PoF method

Author

Gu, Hantian ; Fu, Guicui ; Wan, Bo ; Li, Nan

Author_Institution

Sch. of Reliability & Syst. Eng., Beihang Univ. of Aeronaut. & Astronaut., Beijing, China

fYear

2012

fDate

23-25 May 2012

Firstpage

1

Lastpage

5

Abstract

An avionic illumination power supply unit and its modified type are selected as the case study in this paper to discuss the data sufficiency of the result given by Physics of Failure method. Comparing the using information obtained from field operation with the failure data, which is predicted under the help of physics of failure method, the sufficient level of the failure data can be evaluated in this paper. The indicator of the sufficiency of the failure predicting result is Failure Coverage Rate. With this indicator, the reliability engineers can estimate weather their knowledge about failure mechanisms is enough to estimate the reliability of the electronic products or not.

Keywords

aircraft power systems; avionics; failure analysis; lighting; power supplies to apparatus; reliability; PoF method; avionic illumination power supply unit; data sufficiency; electronic products; failure coverage rate; failure data; field operation; physics of failure method; reliability engineers; Electric breakdown; Manufacturing; Materials; Reliability; Stress; Thermal stresses; Electronic Product; PHM; Physiscs of Failure; Reliability Prediction; Sufficiency;

fLanguage

English

Publisher

ieee

Conference_Titel

Prognostics and System Health Management (PHM), 2012 IEEE Conference on

Conference_Location

Beijing

ISSN

2166-563X

Print_ISBN

978-1-4577-1909-7

Electronic_ISBN

2166-563X

Type

conf

DOI

10.1109/PHM.2012.6228951

Filename

6228951