Ordering conditional lifetimes of coherent systems Article

Khaledi, BE, Shaked, M. (2007). Ordering conditional lifetimes of coherent systems . JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 137(4), 1173-1184. 10.1016/j.jspi.2006.01.012

cited authors

  • Khaledi, BE; Shaked, M

authors

abstract

  • Consider a system of n components that has the property that there exists a number r(r < n), such that if it is known that at most r components have failed, the system is still functioning with probability 1. Suppose that such a system is equipped with a warning light that comes up at the time of the failure of the rth component. The system is still working then, and we are interested in its residual life. In this paper we obtain some results which stochastically compare the residual lives of such systems with the same type, or with different types, of components. Some applications are given. In particular, we derive upper and lower bounds on the expected residual lives of such systems given that the warning light has not come up yet, and given that the component hazard rate functions are bounded from below or from above by a known constant. © 2006 Elsevier B.V. All rights reserved.

publication date

  • April 1, 2007

published in

Digital Object Identifier (DOI)

start page

  • 1173

end page

  • 1184

volume

  • 137

issue

  • 4