Article ID: | iaor20103843 |
Volume: | 94 |
Issue: | 1 |
Start Page Number: | 53 |
End Page Number: | 62 |
Publication Date: | Jan 2009 |
Journal: | Reliability Engineering and System Safety |
Authors: | Li Xiaohu, Bartholomew-Biggs Michael, Zuo Ming J |
Keywords: | scheduling |
This paper deals with the problem of scheduling imperfect preventive maintenance (PM) of some equipment. It uses a model due to Kijima in which each application of PM reduces the equipment's effective age (but without making it as good as new). The approach presented here involves minimizing a performance function which allows for the costs of minimal repair and eventual system replacement as well as for the costs of PM during the equipment's operating lifetime. The paper describes a numerical investigation into the sensitivity of optimum schedules to different aspects of an age-reduction model (including the situation when parts of a system are non-maintainable–i.e., unaffected by PM).