摘要
为研究抛体电枢旋转在保持飞行稳定性、保证射程和射击精度中的作用,提出了一种基于开槽电枢的多极矩重接式电磁发射模式。首先,通过构建不对称感应涡流场,为开槽电枢提供了轴向电磁力和轴向电磁力矩,实现了开槽电枢直线与旋转同步加速运动;然后,对径向瞬态磁场与不对称感应涡流场的相互作用原理进行了理论分析,并对开槽电枢的直线与旋转加速性能进行了动态仿真,得到了开槽电枢的最佳触发位置和最佳扭转角。有限元仿真结果表明:在电容值为800μF、初始电压为10 kV的脉冲电容器驱动下,重量为1 kg的开槽电枢可以加速到84.7 m/s和7080 r/min,发射效率达到11.7%,最佳触发位置和最佳扭转角分别为8 mm和3°。
In order to study the effect of rotation of the projectile armature in maintaining flight stabi-lity and ensuring the firing range and firing accuracy,multipole field reconnection electromagnetic launch mode based on slotted armature was proposed.An asymmetric induced eddy current field was constructed to provide axial electromagnetic force and axial electromagnetic torque for the slotted armature.As a result,the linear and rotational acceleration of the slotted armature was realized.The inte-raction principle of radial transient magnetic field and asymmetric induced eddy current field was analyzed theoretically.The linear and rotational acceleration performance of slotted armature was dynamically simulated,and the optimal trigger position and optimal torsion angle of slotted armature were obtained.The finite element simulation results show that driven by a pulse capacitor with a capacitance value of 800μF and an initial voltage of 10 kV,a slotted armature weighing 1 kg can be accele-rated to 84.7 m/s and 7080 r/min,with a launch efficiency of 11.7%.The optimal trigger position and optimal torsion angle are 8 mm and 3°,respectively.
作者
卢法龙
郭强
范嘉乐
陈亚斐
郭磊磊
LU Falong;GUO Qiang;FAN Jiale;CHEN Yafei;GUO Leilei(College of Electrical and Information Engineering,Zhengzhou Univ.of Light Industry,Zhengzhou 450002,China)
出处
《海军工程大学学报》
CAS
北大核心
2023年第5期60-65,共6页
Journal of Naval University of Engineering
基金
河南省自然科学基金资助项目(232300420316)
河南省科技攻关项目(222102220077)
郑州轻工业大学博士科研基金资助项目(2020BSJJ056,2021BSJJ013)。
关键词
电磁发射
多极矩
开槽电枢
旋转加速
不对称感应涡流场
electromagnetic launch
multipole moment
slotted armature
rotational acceleration
asymmetric induced eddy current field
作者简介
卢法龙(1989-),男,讲师,博士,主要研究方向为电磁发射技术、超导脉冲电源;通信作者:范嘉乐(1994-),女,讲师,博士,fanjiale@zzuli.edu.cn。
