Mean life of k-to-l-out-of-n systems with nonidentical Weibull distribution components

Hoang Pham, Hanh K. Phan

Research output: Contribution to journalArticlepeer-review


A k-to-l-out-of-n system is a noncoherent system in which no fewer than k and no more than l out of n units are to function for the successful operation of the system. Examples of noncoherent systems are found in communication, multiprocessor and transportation systems. A noncoherent system is very general and includes the parallel, series and N-Modular Redundancy (NMR) systems as special cases. In this paper presents the formulas for calculating the reliability and the mean life of a k-to-l-out-of-n system with non-identical weibull distribution components.

Original languageEnglish (US)
Pages (from-to)845-850
Number of pages6
JournalMicroelectronics Reliability
Issue number6
StatePublished - Jun 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Safety, Risk, Reliability and Quality
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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