摘要
分析了一种导轨-线圈复合型电磁发射器的工作原理,建立了其电路模型和动力学模型;在理论分析的基础上,利用有限元软件Maxwell对其结构参数进行了优化设计。通过有限元数值计算,得到了弹丸发射过程中的磁场分布,进一步得出了其电路模型和动力学模型中的电感、电感梯度与弹丸位置的关系。在此基础上,利用动态仿真软件Matlab/Simulink仿真分析了这种复合型发射器的动态特性。分析和仿真结果显示,该导轨-线圈复合型发射器能使被发射物体获得导轨和线圈两种推力的共同作用,可以将大质量物体加速到相对高的速度。
Working principle of a rail-coil-type electromagnetic launcher was analyzed, and its circuit model and dynamics model were established. Based on the theoretical analysis, the finite element software Maxwell was used to optimize its structure parameters. The magnetic field distribution in the bullet fired process was obtained through the finite element numerical calculation, and the relationships between the inductance, inductance gradient and the bullet position in the two models were drawn. On that basis, the dynamic simulation software Matlab/Simulink was employed to simulate and analyze the dynamic characteristics of the combined-type launcher. The results show that the rail-coil-type launcher allows the objects to be launched to achieve thd coeffect of two thrusts from rail and coil, and massive objects can be accelerated to a relatively high speed.
出处
《微特电机》
北大核心
2010年第5期25-28,共4页
Small & Special Electrical Machines
关键词
线圈-导轨复合型发射器
电磁发射
有限元
磁场分布
电感梯度
rail-coil-type electromagnetic launcher
electromagnetic launch
finite element
magnetic field distribution
inductance gradient
