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Availability Analysis: Concepts and Methods

  1. Enrico Zio1,2

Published Online: 15 JUN 2010

DOI: 10.1002/9780470400531.eorms0993

Wiley Encyclopedia of Operations Research and Management Science

Wiley Encyclopedia of Operations Research and Management Science

How to Cite

Zio, E. 2010. Availability Analysis: Concepts and Methods. Wiley Encyclopedia of Operations Research and Management Science. .

Author Information

  1. 1

    Ecole Centrale Paris-Supelec, Paris, France

  2. 2

    Politecnico di Milano, Milano, Italy

Publication History

  1. Published Online: 15 JUN 2010

Abstract

Availability is a concept used to characterize the performance of a machine, component, or system with respect to its ability to fulfill the function for which it is operated. In this article, a general introduction to quantitative modeling for the availability analysis of components and systems is provided. Both, cases of continuously monitored and periodically tested components are considered. Markov modeling and Monte Carlo simulation are presented as methods for the evaluation of the availability of complex systems.

Keywords:

  • availability analysis;
  • steady-state availability;
  • instantaneous availability;
  • availability of complex systems;
  • Markov models;
  • Monte Carlo simulation