Cost Optimization of Two-dimensional Warranty under Incomplete Preventive Maintenance Condition

In order to reduce the cost of two-dimensional warranty service, preventive maintenance of some expensive equipment is a very popular strategy for the manufacturer to provide after-sales warranty service. Preventive maintenance is further studied in this paper, and the strategy of combining two different degrees of incomplete preventive maintenance is put forward and the corresponding cost model is established. The validity of the model is proved by an example, and the sensitivity analysis is carried out. The results can offer an important reference for the manufacturer to design more competitive and lower cost warranty strategy.