The use of imprecise component reliability distributions in reliability calculations

Author

Roberts, Ian D. ; Samuel, Andrew E.

Author_Institution

Sch. of Mech. & Manuf. Eng., Swinburne Univ. of Technol., Hawthorn, Vic., Australia

Volume

45

Issue

1

fYear

1996

fDate

3/1/1996 12:00:00 AM

Firstpage

141

Lastpage

144

Abstract

System reliability prediction can be needed when detailed data concerning each component are unavailable. This prevents data from various sources from being integrated by considering each source as a sample from the same population. For the Weibull distribution, fuzzy arithmetic is used to synthesize a single fuzzy probability distribution for a component from several possible distributions by considering particular features that map to the Weibull parameters. The use of fuzzified probabilities in fault trees has been considered by others; once the fuzzy component failure probabilities have been calculated, a fuzzy system reliability distribution can be obtained which portrays the inexact nature of the data on which the result is based

Keywords

Weibull distribution; fault trees; fuzzy set theory; reliability theory; Weibull distribution; Weibull parameters; fault trees; fuzzified probabilities; fuzzy arithmetic; fuzzy probability distribution; imprecise component reliability distributions; system reliability prediction; Arithmetic; Fault diagnosis; Fault trees; Fuzzy systems; Manufacturing; Probability distribution; Reliability engineering; Testing; Uncertainty; Weibull distribution;

fLanguage

English

Journal_Title

Reliability, IEEE Transactions on

Publisher

ieee

ISSN

0018-9529

Type

jour

DOI

10.1109/24.488932

Filename

488932