Abstract
In this paper, we propose an estimate of reliability in a multicomponent system. The system has \(k\) components strengths are given by independently and identically distributed random variables \({X}_{1}\), \({X}_{2}\),…, \({X}_{k}\) and each component is exposed to random stress \({\rm Y}\). The reliability of such a system is obtained when strength and stress variables are given by inverse Weibull (IW) distribution with scale parameters \({\lambda }_{1}\), \({\lambda }_{2}\) and common shape parameter \(\alpha\). The system reliability is estimated using maximum likelihood estimation (MLE) and the best two-observational percentile estimation (BTPE) methods in samples drawn from strength and stress distributions. Also, the asymptotic confidence interval for system reliability is obtained. The reliability estimators obtained from both methods are compared using average bias, mean squares error, and confidence interval length via Monte Carlo simulation. In the end, using two real data sets we illustrate the procedure.
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The authors are grateful to the referees and the associate editor of the journal for evaluating and constructive suggestions.
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Heidari, K.F., Deiri, E. & Jamkhaneh, E.B. Using the best two-observational percentile and maximum likelihood methods in a multicomponent stress-strength system to reliability estimation of inverse Weibull distribution. Life Cycle Reliab Saf Eng 10, 255–265 (2021). https://doi.org/10.1007/s41872-021-00166-z
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DOI: https://doi.org/10.1007/s41872-021-00166-z