摘要
空气阻力是电磁轨道炮发射过程中受到的主要阻力之一,为改善发射性能,可以将炮膛内抽成真空。因此,建立了轨道炮的Simulink仿真模型,并对轨道炮在有空气阻力和炮膛内处于真空状态下的发射过程分别进行仿真计算,对比分析了两种情况下的出口速度和系统效率。结果表明,将炮膛内抽成真空,可有效提高电磁轨道炮的出口速度和系统效率,同时减少了电枢的出膛时间,对提高系统寿命具有重要意义。
Air drag is one of the main resistances encountered during the launch of an electromagnetic railgun. In order to improve the launch performance, the muzzle of the railgun was designed to be pumped into vacuum. Therefore, the Simulink simulation model of the railgun was established. Both launching processes of the railgun under the air drag and under the vacuum in the muzzle of railgun were simulated, and the muzzle velocities and system efficiencies under the two conditions were compared. The results show that the vacuum of the bore of railgun can both effectively improve the muzzle velocity and system efficiency of the electromagnetic railgun, while reduce the exit time of the armature, which is of great significance for improving the life of the railgun system.
作者
吴宝剑
苏小平
李智
WU Bao-jian;SU Xiao-ping;LI Zhi(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China)
出处
《科学技术与工程》
北大核心
2020年第19期7815-7819,共5页
Science Technology and Engineering
