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Journal of Projectiles, Rockets, Missiles and Guidance >

2020 , Vol. 40 >Issue 3: 75 - 78

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2020.03.018

Research on Nonlinear Degeneration of Missile Components Based on Copula Function

  • HE Zhiyuan ,
  • LYU Weimin ,
  • HU Wenlin
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  • Naval Aviation University, Shandong Yantai 264001, China

Received date: 2019-04-25

  Online published: 2025-02-12

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Abstract

To solve the uncertainty about reliability evaluation of missile components, a nonlinear degradation model based on Copula function was proposed in the work. However, how to solve multi-performance parameters during the degradation of missile components as the nonlinear degradation model is an essential problem. Firstly, a single performance degradation model based on Wiener process was chose. Then, the Copula function is used to analyze the correlation and establish a multi-performance degradation model. Finally, the fiber optic gyroscope is selected as an example to calculate the reliability curve. Compared with the real evaluation results and the traditional methods, this method is closer to the real result. It is proved that the proposed method can describe the nonlinear degradation process of missile components more reasonably and improve the credibility of the evaluation results.

Key words： reliability evaluation; multi-performance; nonlinear; Wiener process; Copula function

Cite this article

HE Zhiyuan , LYU Weimin , HU Wenlin . Research on Nonlinear Degeneration of Missile Components Based on Copula Function[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2020 , 40(3) : 75 -78 . DOI: 10.15892/j.cnki.djzdxb.2020.03.018

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