Selective Maintenance for Complex System with Multilevel Structure

In this paper, we provided a selective maintenance model for complex system with multilevel structure. Our selective maintenance model is so special that we consider the fact when a specific component is maintained so that the subsystems must be removed. We consider that the components have two kind of status, working or failed. We consider three different maintenance actions for the components with different status. The selective maintenance model is formulated as a non-linear programming problem. The objective is to maximum reliability by maintaining part of components of the system in a limited cost. We provided a numerical example to illustrate the effectiveness of the model.