Research on basic maintenance unit model under two-level maintenance

In two-level maintenance, the intermediate-level sites are replaced by other sites. How to allocated tasks of testing and replacing shop-replaced units is the key to balance material reliability and expenses. This paper raises basic maintenance unit model to divide support tasks and resource among organizational-level sites of a basic maintenance unit with lateral support. The process of level of repair analysis is also improved. Finally, the feasibility of the model is verified with a numerical example by Monte Carlo simulation on comparing with other models.