Estimation of reliability in a multicomponent stress- strength model based on generalized linear failure rate distribution

Year 2018, Volume: 47 Issue: 6, 1634 - 1651, 12.12.2018

M. Kh. Hassan M. İ. Alohali

Abstract

In this paper, we consider the problem of estimation reliability in multicomponent stress-strength model, when the system consists of $k$-components have strength are given by independently and identically distributed random variables $X_{1},...,X_{k}$ each component experiencing a random stress governed by a random variable $Y$. The reliability such system is obtained when strength and stress variables are given by a generalized linear failure rate distribution. The system is regarded as alive only if at least $s$ out of $k$ $(s<k)$ strength exceed the stress. The multicomponent reliability of the system is given by $R_{s,k}=P[$ at least $s$ of $X_{1},...,X_{k}$ exceed $Y]$. The maximum likelihood estimator $(MLE)$ and Bayes estimator of $R_{s,k}$ are obtained. A simulation study is performed to compare the different estimators of $R_{s,k}$. Real data is used as a practical application of the proposed procedure.

Keywords

Generalized linear failure rate, stress-strength model, maximum likelihood method, Bayes estimator, simulation

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