基于虚拟年龄的租赁设备预防性维护策略研究

Research on Virtual Age Based Preventive Maintenance Policy for Leased Equipment

随着租赁行业的兴起,为租赁设备提供高效的维护服务成为租赁方制胜的重要手段。在综合考虑设备新旧程度、租金收入、故障惩罚等租赁设备特有因素的基础上,以虚拟年龄作为预防性维护修复程度的衡量标准,并使其随役龄增加,来抑制故障次数增加。从租赁方的角度建立了一个以利润率最大化为目标的维护策略模型,并用数值实例验证了这一模型的有效性。

With the boom of leasing industry,providing efficient maintenance services for the leased equipment has become an important way for the lessor to achieve success. A preventive maintenance policy is proposed for the leased equipment based on virtual age theory, considering various influencing factors existing in the leasing environment. These factors include equipment depreciation, failure penalty and rental income. In order to control the number of equipment failures, the virtual age recovered each time is set to increase with the raising speed of the equipment failure rate. The optimal preventive maintenance policy is obtained by maximizing the profit margins from the lessor＇ s point. Finally, a numerical example is given to validate the proposed policy.