摘要:在电磁发射器中,拦截弹的电磁发射过程是一个涉及多物理场的复杂动态过程,对它的求解分析十分困难。为了更好地解决这一问题,选择使用场路耦合分析方法建立起能够电磁发射瞬态过程的系统模型,并利用Maxwell 3D与Simplore的协同仿真对拦截弹的电磁发射过程进行仿真研究,得到了发射过程中放电回路的电流波形、发射装置的磁场和涡流分布,以及拦截弹所受电磁力、拦截弹速度和位移随时间的变化规律,并进行了拦截弹发射实验,实验结果与仿真数据的一致性表明所建立的场路耦合模型是正确的。
关键词:电磁发射;场路耦合;动态仿真 Abstract: Launching process of the interception projectile is a complex dynamic process involving multifields and is difficult to be solved. In order to solve the problem fieldcircuit coupled method was used in this paper. Equation of the electromagnetic (EM) field during the launching process and equation of the control circuit were coupled together to build the systematic model of the dynamic process. The model was simulated with the software Maxwell 3D and Simplore. The current wave of the discharge circuit, the magnetic field and eddy current of the EM launcher as well as the EM force, the velocity and the position varying with the time were obtained through simulation. Launching experiment were completed with EM experimental device. The consistency between the experimental result and the simulation result verified the feasibility of analysis in this paper.
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