A deterministic maintenance scheduling problem for a group of non-identical machines

Addresses a deterministic maintenance-scheduling problem for a group of non-identical machines. The problem is formulated as a mixed integer non-linear program which is approached heuristically. In the model formulation, it is assumed that a major overhaul brings the machine back to its new condition, whereas a minor overhaul restores it to a specified operating condition. An iterative solution procedure is developed to obtain a near-optimal cyclic overhaul schedule. Presents a worked example to illustrate the proposed solution method.