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Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 2: 20 - 24

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.02.005

Dynamic Multiphasic Coupling Analysis of Electromagnetic Orbit Launcher

  • YANG Fan ,
  • ZHAI Xiaofei ,
  • ZHANG Xiao ,
  • LIU Hua
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  • National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering,Wuhan 430033,China

Received date: 2020-06-05

  Online published: 2025-02-25

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Abstract

Aiming at the coupling calculation of multi-physical fields in the dynamic launching process of electromagnetic track launcher, using the moving grid method based on Laplacian equation mapping, and based on the control equations of multi-physics field, with the help of finite element simulation platform, a coupling calculation model of electromagnetic field-temperature field-structure field under dynamic launching conditions is established. According to the model, the distribution characteristics of current density, temperature, stress and other physical quantities on armature and guide rail during dynamic launching are calculated and analyzed. The results show that the simulation model can obtain some typical phenomena during the electromagnetic orbit launch, such as electromagnetic diffusion and melt wave ablation; the current density, temperature rise and stress are mainly concentrated in the throat region for the C-type armature structure. If the average stress in the throat region of the armature is higher than the yield strength at the average temperature in this region, the armature will deform and fracture.

Key words： electromagnetic orbit launcher; multiphasic coupling; moving grid method; finite element simulation

Cite this article

YANG Fan , ZHAI Xiaofei , ZHANG Xiao , LIU Hua . Dynamic Multiphasic Coupling Analysis of Electromagnetic Orbit Launcher[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(2) : 20 -24 . DOI: 10.15892/j.cnki.djzdxb.2021.02.005

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