Abstract
In modeling a maintenance with inspections, the failure physics models are required. In this paper, the preventive maintenance model with periodic inspections of a continuously degrading system is described with a reaction rate model and a cumulative degradation model, both of which are one of the failure physics models. To inspect all the units in the system is often impossible because of a technical and/or an economic reason (s). Therefore the model consists of two subsystems ; an inspected subsystem (Is) and a non-inspected subsystem (Ns). Furthermore the degradation influence from Is to Ns is considered. Finally the model is analyzed with some numerical examples.
