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Load-Sharing Reliability Models with Different Component Sensitivities to Other Components’ Working States

Published online by Cambridge University Press:  17 March 2021

Tomasz Rychlik*
Affiliation:
Polish Academy of Sciences
Fabio Spizzichino*
Affiliation:
Sapienza University of Rome
*
*Postal address: Institute of Mathematics, Polish Academy of Sciences, Śniadeckich 8, 00 656 Warsaw, Poland. Email address: [email protected]
**Postal address: Sapienza University of Rome, Rome, Italy. Email address: [email protected]

Abstract

We study the distributions of component and system lifetimes under the time-homogeneous load-sharing model, where the multivariate conditional hazard rates of working components depend only on the set of failed components, and not on their failure moments or the time elapsed from the start of system operation. Then we analyze its time-heterogeneous extension, in which the distributions of consecutive failure times, single component lifetimes, and system lifetimes coincide with mixtures of distributions of generalized order statistics. Finally we focus on some specific forms of the time-nonhomogeneous load-sharing model.

Type
Original Article
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of Applied Probability Trust

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