Journal of Systems Engineering and Electronics ›› 2022, Vol. 33 ›› Issue (6): 1332-1341.doi: 10.23919/JSEE.2022.000152

• RELIABILITY • Previous Articles    

Search for d-MPs without duplicates in two-terminal multistate networks based on MPs

Bei XU1,2(), Yining FANG1,*(), Guanghan BAI1(), Yun’an ZHANG1(), Junyong TAO1()   

  1. 1 Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligent Sciences and Technology, National University of Defense Technology, Changsha 410073, China
    2 School of General Aviation, Nanchang Hangkong University, Nanchang 330063, China
  • Received:2021-01-13 Online:2022-12-18 Published:2022-12-24
  • Contact: Yining FANG E-mail:70611@nchu.edu.cn;fangyining@nudt.edu.cn;baiguanghan@nudt.edu.cn;yazhang@nudt.edu.cn;taojunyong@nudt.edu.cn
  • About author:
    XU Bei was born in 1987. She is currently working toward her Ph.D. degree with National University of Defense Technology, Changsha, China. She is also currently a lecturer with the School of General Aviation, Nanchang HangKong University, Jiangxi, China. Her current research interests focus on network reliability and system resilience. E-mail: 70611@nchu.edu.cn

    FANG Yining was born in 1991. She received her Ph.D. degree in mechanical engineering from University of Alberta, Edmonton, AB, Canada, in 2019. She is currently a lecturer with the Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology. Her current research interests include system resilience. E-mail: fangyining@nudt.edu.cn

    BAI Guanghan was born in 1986. He received the Ph.D. degree in mechanical engineering from University of Alberta, Edmonton, AB, Canada, in 2016. He is currently a lecturer with the Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology. His current research interests include network reliability and system resilience. E-mail: baiguanghan@nudt.edu.cn

    ZHANG Yun’an was born in 1983. He received his Ph.D. degree in mechanical engineering from National University of Defense Technology, Changsha, China, in 2014. He is currently an associate professor with the Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology. His current research interest focuses on system reliability. E-mail: yazhang@nudt.edu.cn

    TAO Junyong was born in 1969. He received his Ph.D. degree in mechanical engineering from National University of Defense Technology, Changsha, China, in 2000. He is currently a professor with the Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology. His current research interests include reliability test and evaluation. E-mail: taojunyong@nudt.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (71701207), the Science and Technology on Reliability & Environmental Engineering Laboratory (6142004004-2), and the Science and Technology Commission of the CMC (2019-JCJQ-JJ-180)

Abstract:

The reliability evaluation of a multistate network is primarily based on d-minimal paths/cuts (d-MPs/d-MCs). However, being a nondeterminism polynomial hard (NP-hard) problem, searching for all d-MPs is a rather challenging task. In existing implicit enumeration algorithms based on minimal paths (MPs), duplicate d-MP candidates may be generated. An extra step is needed to locate and remove these duplicate d-MP candidates, which costs significant computational effort. This paper proposes an efficient method to prevent the generation of duplicate d-MP candidates for implicit enumeration algorithms for d-MPs. First, the mechanism of generating duplicate d-MP candidates in the implicit enumeration algorithms is discussed. Second, a direct and efficient avoiding-duplicates method is proposed. Third, an improved algorithm is developed, followed by complexity analysis and illustrative examples. Based on the computational experiments comparing with two existing algorithms, it is found that the proposed method can significantly improve the efficiency of generating d-MPs for a particular demand level d.

Key words: reliability, multistate network, d-minimal path (d-MP), duplicate