On reliability criteria and the implied cost of failure for a maintained component

Scarf, PA; Dwight, R; Al-Musrati, A

Abstract

This paper considers age-based replacement and block replacement when reliability is also a decision criterion. We describe how
specification of the operational reliability of component function determines the replacement policy, and that setting a value for the cost of
failure and specifying an operational reliability requirement are equivalent. This duality then implies a simple method for checking the
consistency of the cost of failure and operational reliability measures when they are set system operators and maintainers. A simple
expression for the median time between operational failures for a socket subject to age-based replacement is also obtained. These ideas are
considered briefly in the context of block replacement. Data from an actual case relating to the maintenance and replacement of train traction
motors is used for illustration.

Citation

Scarf, P., Dwight, R., & Al-Musrati, A. (2004). On reliability criteria and the implied cost of failure for a maintained component. Reliability Engineering and System Safety, 89(2), 199-207. https://doi.org/10.1016/j.ress.2004.08.019

• Journal Article Type: Article
• Acceptance Date: Aug 24, 2004
• Publication Date: Oct 8, 2004
• Deposit Date: Oct 7, 2011
• Journal: Reliability Engineering & System Safety
• Print ISSN: 0951-8320
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 89
• Issue: 2
• Pages: 199-207
• DOI: https://doi.org/10.1016/j.ress.2004.08.019
• Publisher URL: http://dx.doi.org/10.1016/j.ress.2004.08.019
• Related Public URLs: https://www.journals.elsevier.com/reliability-engineering-and-system-safety