Research On Two-dimensional Basic Warranty Strategies Based On Heterogeneous Usage Rate

In marketing,warranty has a role in promoting product sales.In addition to regulating the price of the product,extending the basic warranty period of the product can enhance the competitive advantage of the product in the market and promote product sales.At the same time,an attractive warranty policy may cause an increase in warranty service costs.Considering the characteristics of preventive maintenance to improve product reliability and reduce the frequency of product failure,more and more manufacturers are applying preventive maintenance to product warranty services.Therefore,it is worthwhile to study how to make joint decisions on the product’s basic warranty period,price and preventive maintenance strategies.Based on the above analysis,this dissertation takes the difference in product usage rate of different customers as the entry point.From the manufacturer’s perspective,we conduct a joint optimization study on the price,2D basic warranty period and corresponding preventive maintenance strategies for 2D warranty product,such as automobile,engineering equipment,etc.(1)A method is proposed to jointly optimize the two-dimensional basic warranty period,price,and uniform preventive maintenance strategy.Due to the heterogeneity of customer product usage,there are differences in the age and usage of different customers at the end of the two-dimensional warranty period.In this dissertation,we adopt the segmental integration method to construct a warranty cost model considering periodic preventive maintenance and a demand function based on the utility of 2D warranty,respectively.On this basis,the effects of the two-dimensional basic warranty period,the times and level of preventive maintenance,and the product price on the manufacturer’s expected profit are investigated,and the validity of the modeling approach is verified by a case study.(2)A method is proposed to jointly optimize the two-dimensional base warranty period,price,and customized preventive maintenance strategy.Customers are divided into groups based on utilization intervals.Then,the product preventive maintenance process for customers with different usage rates is modeled and a customized twodimensional warranty cost model is constructed.On this basis,the joint optimization model of two-dimensional basic warranty period,customized preventive maintenance strategy and product price is established with the goal of maximizing manufacturer’s profit by combining the two-dimensional warranty utility demand function.Finally,the model approach is effectively validated by an example and sensitivity analysis.This study helps manufacturers to price their products and develop more effective2 D basic warranty periods as well as maintenance strategies,and provides theoretical support and practical guidance for the systematic design of 2D basic warranty strategies and product prices.