To read the full version of this content please select one of the options below:

Stochastic analysis of a maintainable robot‐safety system with common‐cause failures

B.S. Dhillon (Department of Mechanical Engineering at the University of Ottawa, Ottawa, Canada)
Zhijian Li (Department of Mechanical Engineering at the University of Ottawa, Ottawa, Canada)

Journal of Quality in Maintenance Engineering

ISSN: 1355-2511

Article publication date: 1 June 2004

Abstract

This paper presents reliability and availability analyses of a robot‐safety system having one robot and n‐redundant safety units with common‐cause failures. The system failure rates and the partially failed system repair rates are assumed constant, and the failed system repair time is assumed arbitrarily distributed. Markov and the supplementary variable methods were used to perform mathematical analysis of this model. Generalized expressions for state probabilities, system availabilities, reliability, mean time to failure, and variance of time to failure are developed. Some plots of these expressions are shown.

Keywords

Citation

Dhillon, B.S. and Li, Z. (2004), "Stochastic analysis of a maintainable robot‐safety system with common‐cause failures", Journal of Quality in Maintenance Engineering, Vol. 10 No. 2, pp. 136-147. https://doi.org/10.1108/13552510410539204

Publisher

:

Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited