基于两类失效的产品保修策略与出保维修优化

基于消费者对保修的需求,设计消费者偏爱的保修策略是制造商巩固市场地位、提升市场竞争力的一种战略决策。与此同时,以较低费用制定较长出保服役时间的出保维修策略也是消费者一直追求的目标。本文以两类失效产品为研究对象,首先从制造商角度将消费者偏爱的更新免费更换保修策略与产品定价相融合,开展了产品保修策略设计。其次,从消费者角度将预防维修与经典周期更换策略相融合,提出了维修—周期更换策略,且将其作为出保维修策略并对相应的性能进行了说明。通过数值实验发现,利润模型可对保修开展设计;与总费用模型作为目标函数相比,费用率模型作为目标函数可降低寿命周期费用;与经典周期更换策略相比,提出的维修—周期更换策略能使出保服役时间更长、费用率更低。

Optimization of Warranty Scheme and Post-warranty Maintenance for the Product with Two Types of Failures

Based on consumers' need for warranty, to design the warranty policy preferred by customers is astrategic decision for manufacturers to consolidate powerfully the market position and improve greatly market competitiveness. According to the warranty designed by manufacturers, besides, designing the post-warranty maintenance policy that makes maintenance cost lower and the useful lifetime after the expiry of the warranty to be extended greatly is an objective hotly pursued by customers. In this paper, firstly, the manufacturer's warranty is perfectly designed by integrating the product pricing and the renewable free replacement warranty. By adding the preventive maintenance at the warranty period to periodic replacement policy, secondly, a maintenance-periodic-replacement policy is proposed and is used as the consumer's post-warranty maintenance policy. Finally, it is shown in the numerical experiment that warranty can be designed by optimizing profit model; and the maintenance policy proposed in this paper can prolong the useful lifetime after the expiry of the warranty and reduce cost rate.