摘要
To increase customers'satisfaction and promote product's competitiveness,a customized extended warranty(EW)policy is proposed,where the diversities in both the usage rate and purchase date are considered.The marginal approach is applied to describe the product's two-dimensional failure in terms of age and usage,respectively.Moreover,minimal repair is adopted to restore the failure,and the virtual age method is applied to depict the effect of preventive maintenance(PM).On this basis,an optimization model is established to minimize the maintenance cost and warranty cost from the manufacturer's view,and multiple factors are taken into account,including the PM's intensity and its period,and EW's interval,etc.A numerical case study is provided to illustrate the effectiveness of the proposed approach.The results show that by considering the product's usage rate and the purchasing date of EW,the number of failures as well as the cost of maintenance and warranty can be reduced effectively.
为提高顾客满意度、提升产品竞争力,考虑产品使用率和顾客购买延长质保时间的差异性,提出一种定制化延长质保策略.以时间和使用率定义二维质保区间,采用边际法定义产品的二维故障,并分别用年龄和使用率加以刻画.采用最小维修修复产品故障,利用虚拟年龄法描述预防性维修的效果.在此基础上,以制造商维修与质保成本最小化为目标建立优化模型,模型中考虑了预防性维修强度与维修周期、延长质保区间长度等因素.通过数值案例验证方法有效性.结果表明:考虑产品使用率和购买延长质保时间,可以有效减小产品的故障次数,降低制造商的维修与质保成本.
基金
The National Natural Science Foundation of China(No.71671035)
the Project of 2018 Intelligent Manufacturing Comprehensive Standard of Ministry of Industry and Information Technology of China
the Open Fund of Jiangsu Wind Power Engineering Technology Center of China(No.ZK19-03-03)。
