Reliability Estimate of Ships Life Based on Zero-failure Data

Author

Wang, Xiaoying ; Shen, Jihong

Author_Institution

Harbin Eng. Univ., Harbin, China

fYear

2012

fDate

23-26 June 2012

Firstpage

280

Lastpage

282

Abstract

The life distribution of some type of ships is Wei bull distribution. In a ship life test, censored at fixed time totally 15 times, the zero-failure data are got, used to estimate the ships life reliability. The crucial point is the first step-how to estimate the failure probability. By the hierarchical Bayesian analysis, the probability is estimated. The Gamma distribution is used to be the prior distribution of failure probability. Then, the curve of Wei bull is stimulated by the least square method. The method is easy to compute and very convenient for engineering application. The result shows estimation of is robust.

Keywords

Bayes methods; Weibull distribution; failure (mechanical); failure analysis; gamma distribution; least squares approximations; life testing; reliability; ships; Weibull distribution; failure probability distribution; gamma distribution; hierarchical Bayesian analysis; least square method; ship life distribution; ship life reliability estimation; ship life test; zero-failure data; Bayesian methods; Educational institutions; Least squares methods; Marine vehicles; Robustness; Weibull distribution; hierarchical bayesian analysis; reliability estimate; ships life; zero-failure data;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Sciences and Optimization (CSO), 2012 Fifth International Joint Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4673-1365-0

Type

conf

DOI

10.1109/CSO.2012.69

Filename

6274727