Optimization design of a new simulated projectile electromagnetic blocking device based on permanent magnet

Jiahua Ma, Xiangyu Dong, D. Ma, Jie Ren
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Abstract

In this paper, a kind of electromagnetic blocking device of simulated projectile based on rodless cylinder ejection is designed. The characteristic of the device is that only permanent magnet is used as the magnetic field source, and eddy current is generated by the circular cutting magnetic field on the simulated projectile, so as to slow down the simulated projectile. According to Maxwell simulation calculation, when the thickness of permanent magnet is 200mm, axial magnetization and reverse arrangement are adopted, the simulated projectile with initial velocity of 20m/s and mass of 200kg can be slowed down to 0m/s in 275ms, and the displacement of simulated projectile at this time is 2457mm. In the actual situation, due to friction and other reasons, The simulated spring deceleration displacement is smaller than the simulated value.
基于永磁体的新型模拟弹丸电磁阻挡装置的优化设计
本文设计了一种基于无杆圆柱弹射的仿真弹电磁拦截装置。该装置的特点是只使用永磁体作为磁场源,通过圆形切割磁场对模拟弹丸产生涡流,从而使模拟弹丸减速。根据Maxwell仿真计算,当永磁体厚度为200mm,采用轴向磁化和反向排列时,初始速度为20m/s、质量为200kg的模拟弹丸可在275ms内减速至0m/s,此时模拟弹丸的位移为2457mm。在实际情况下,由于摩擦等原因,模拟弹簧减速位移小于模拟值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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