Journal of Systems Engineering and Electronics ›› 2023, Vol. 34 ›› Issue (3): 798-803.doi: 10.23919/JSEE.2023.000085

• RELIABILITY • Previous Articles    

Reliability analysis of torpedo loading based on fractional-order optimization model

Cheng YANG(), Qingwei LIANG(), Xinyu HAO(), Sheng LIN   

  1. 1 College of Marine, Northwest Polytechnic University, Xi’an 710072, China
  • Received:2021-06-25 Online:2023-06-15 Published:2023-06-30
  • Contact: Qingwei LIANG E-mail:1491005811@qq.com;liangqingwei@nwpu.edu.cn;haoxinyuuu@163.com
  • About author:
    YANG Cheng was born in 1996. He received his M.S. degree with the College of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, China. He is currently pursuing his Ph.D. degree with the College of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, China. His research interests are systems engineering and reliability. E-mail: 1491005811@qq.com

    LIANG Qingwei was born in 1970. She received her B.S., M.S. and Ph.D. degrees from Northwestern Polytechnical University, Xi ’an, China, in 1992, 1997 and 2006, respectively. She is an associate professor and a doctoral supervisor of the College of Marine Science and Technology, Northwestern Polytechnical University. Her research interests are system engineering and reliability. E-mail: liangqingwei@nwpu.edu.cn

    HAO Xinyu was born in 1995. He received his M.S. degree with the College of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, China. His research interests are system engineering and reliability. E-mail: haoxinyuuu@163.com

    LIN Sheng was born in 1997. He is currently pursuing his M.S. degree with the College of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, China. His research interest is systems effectiveness analysis of underwater vehicle cluster. E-mail: 2509404887@qq.com

Abstract:

A fractional-order cumulative optimization GM(1,2) model based on grey theory is proposed to study the relationship between torpedo loading and working reliabilities. In this model, the average relative error function related to order and background value is established. Taking the average relative error function as the objective function, the optimal value of the two parameters is obtained through the optimization method, and the minimum value of the average relative error is determined. The calculation example shows that this method can greatly improve the accuracy of the model and more accurately reflect the relationship between torpedo loading and working reliabilities compared with the traditional GM(1,2) model.

Key words: torpedo, loading reliability, working reliability, grey theory, fractional-order