Abstract
The assessment and modeling of the maintenance effect is an active research topic. In this paper, we proposed a failure- counting-based maintenance effect assessment model (abbreviated as FCME). Specifically speaking, this model assumes that a system failure process during a preventive maintenance interval can be described as an independent failure path. The initial independent failure path can be denoted as the inherent failure path. Furthermore, the current failure can be presented as the sum of the last failure path and the increment that is proportional to the difference between the inherent and last failure path. This proportion is used to represent the preventive maintenance effect. Moreover, the failure path is modeled by a random failure point process model. In order to illustrate the effectiveness of the proposed method, a numerical example is presented based on the data referenced from previous literatures. Then the model is used to assess the preventive maintenance effect of a bus fleet with the real world operating data.
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