摘要
通过数值仿真,根据螺旋线圈电磁发射器(HCEL)驱动线圈的径向磁场分布,提出一种"D"形截面电枢并确定其最佳受力位置。计算表明,相同线度的"D"形电枢比矩形电枢加速度更大,即在炮长(弹丸加速长度)相同的情况下,"D"形电枢比矩形电枢具有更高的出口速度。以"D"形电枢为例,分析了弹丸线圈与驱动线圈上的轴向、径向受力分布。结果表明,弹丸线圈与驱动线圈的径向力主要为向外的膨胀力,在炮结构的工程设计中应在线圈外围进行加固。
The radial magnetic field distribution of the helical coil electromagnetic launcher＇s driving coil is investigated by numerical simulation,from which a ＂D＂ shaped cross section armature is proposed and its best location is determined.The results show that,with the same size,the acceleration of the ＂D＂ shaped armature is bigger than the rectangular armature,i.e.,with the same length of the launcher,the muzzle velocity of the ＂D＂ shaped armature is bigger than the rectangular armature.Taking the ＂D＂ shaped armature as an example,the axial and radial force distribution of the armature coil and the driving coil is investigated.The results show that the radial forces on the armature coil and the driving coil are mainly swelling forces,and the structure surround the coils should be reinforced in the launcher design.
出处
《电工电能新技术》
CSCD
北大核心
2011年第3期47-50,共4页
Advanced Technology of Electrical Engineering and Energy
