Abstract
We study the availability of a system that is maintained under periodic inspection and a perfect repair policy with constant repair time. We consider two models. One, Model A that treats an unfailed system to be as good as new upon inspection, and makes perfect repair of a failed system with immediate restoration. Two, Model B that does not intervene on a system found unfailed at inspection times and makes perfect repair of a failed system with restoration taking place at the next scheduled inspection following repair. For each model, we express the system availability function as a linear combination of the survival function and its shift(s), and, thereby, obtain the limiting average availability. We illustrate the results when the system has exponential or gamma life distribution. Graphs of the system availability function, and numerical tables showing the limiting average availability and the periodicity of inspections necessary to achieve a specified limiting average availability are also presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.