Journal of Systems Engineering and Electronics ›› 2023, Vol. 34 ›› Issue (2): 396-407.doi: 10.23919/JSEE.2023.000009

• SYSTEMS ENGINEERING • Previous Articles    

Optimization of extended warranty cost for multi-component systems with economic dependence based on group maintenance

Rongcai WANG1(), Enzhi DONG1(), Zhonghua CHENG1,*(), Qian WANG2()   

  1. 1 Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China
    2 Training Base, Officers College of PAP, Guangzhou 510080, China
  • Received:2021-02-15 Online:2023-04-18 Published:2023-04-18
  • Contact: Zhonghua CHENG E-mail:asd528866@126.com;woailiuxi666@163.com;13143648622@163.com;18003131595@163.com
  • About author:
    WANG Rongcai was born in 1996. He is studying for his M.S. degree in management science and engineering with Shijiazhuang Campus of Army Engineering University. His research interests include reliability engineering and maintenance engineering. E-mail: asd528866@126.com

    DONG Enzhi was born in 1997. He is studying for his M.S. degree in management science and engineering with Shijiazhuang Campus of Army Engineering University. His research interests include reliability engineering and maintenance engineering. E-mail: woailiuxi666@163.com

    CHENG Zhonghua was born in 1972. He is a professor and Ph.D. tutor in Shijiazhuang Campus of Army Engineering University. His research interests include management science and engineering, equipment support, and reliability engineering. E-mail: 13143648622@163.com

    WANG Qian was born in 1989. He received his M.S. degree from Shijiazhuang Campus of Army Engineering University in 2019. He is currently a lecturer in the Training Base, Officers College of PAP. His research interests include maintenance engineering and equipment support. E-mail: 18003131595@163.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (71871219)

Abstract:

During extended warranty (EW) period, maintenance events play a key role in controlling the product systems within normal operations. However, the modelling of failure process and maintenance optimization is complicated owing to the complex features of the product system, namely, components of the multi-component system are interdependent with each other in some form. For the purpose of optimizing the EW pricing decision of the multi-component system scientifically and rationally, taking the series multi-component system with economic dependence sold with EW policy as a research object, this paper optimizes the imperfect preventive maintenance (PM) strategy from the standpoint of EW cost. Taking into consideration adjusting the PM moments of the components in the system, a group maintenance model is developed, in which the system is repaired preventively in accordance with a specified PM base interval. In order to compare with the system EW cost before group maintenance, the system EW cost model before group maintenance is developed. Numerical example demonstrates that offering group maintenance programs can reduce EW cost of the system to a great extent, thereby reducing the EW price, which proves to be a win-win strategy to manufacturers and users.

Key words: extended warranty (EW) cost, multi-component system, economic dependence, preventive maintenance (PM), group maintenance