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Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 2: 145 - 149

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.02.003

Research on Overload Test Method of Projectile Launched by Electromagnetic Rail in Bore

  • LIU Yong ,
  • YAN Jie ,
  • WANG Wanying ,
  • ZHANG Tao ,
  • HUANG Kai
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  • Northwest Institute of Mechanical and Electrical Engineering, Xianyang 712099, Shaanxi, China

Received date: 2024-09-03

  Online published: 2025-05-15

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Abstract

It is difficult to accurately test overload of a projectile moving in a bore by conventional testing methods and the strong electromagnetic environment interferes with the testing devices in electromagnetic launching, a new method for testing the overload of the projectile in the bore is proposed. Firstly, based on the technical advantage of electromagnetic launching technology that the overload in the bore is adjustable and controllable, a testing principle for projectile overload test is put forward, that controls the current waveform and makes it into a flat wave, then establishes a constant overload loading interval to test projectile overload. Secondly, a new test method of the projectile overload, that is launched by electromagnetic rail, is established. By controlling the current loading waveform and changing the current amplitude, the corresponding relationship between the overload and the current is established, and through electromagnetic launching test, it can get the loading current and corresponding relationship and indirectly get overload of the projectile in-bore. Finally, the electromagnetic launching test is carried out, and the conventional test method and the new test method are compared. The results show that the new test method can complete the overload loading process test of the whole inner bore, and can more truly reflect the process of the projectile starting to move after overcoming the static friction. This test method can meet the requirements of in-bore overload test of electromagnetic projectile, and avoid the influence of electromagnetic interference on the test.

Key words： railgun; electromagnetic launching; interior ballistics; overload; test method

Cite this article

LIU Yong , YAN Jie , WANG Wanying , ZHANG Tao , HUANG Kai . Research on Overload Test Method of Projectile Launched by Electromagnetic Rail in Bore[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(2) : 145 -149 . DOI: 10.15892/j.cnki.djzdxb.2025.02.003

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