CAJ | 학술논문

为了使重接型线圈推进器获得较大的出口速度和较高的能量转化效率，需要对其触发放电位置和脉冲电流波形进行优化设计。首先从物理机理上解释了推进过程，然后根据电路方程分析了推进效率，最后采用电磁场有限元仿真分析了不同触发放电位置对重接型线圈推进器加速力、出口速度和推进效率的影响。仿真结果表明，存在一个最佳的触发放电发位置，使得抛体能够在较大范围内获得较大的加速力，从而获得最大出口速度。同时分析发现，重接型线圈推进器在发射过程中存在减速制动力，最大出口速度并不一定对应最大推进效率。在多级重接型线圈推进器的设计中，随着各级抛体人口速度的增大，触发放电位置需要相应优化，同时使驱动线圈中脉冲电流波形与互感梯度变化曲线匹配，才能获得最大的推进效率。
위료사중접형선권추진기획득교대적출구속도화교고적능량전화효솔，수요대기촉발방전위치화맥충전류파형진행우화설계。수선종물리궤리상해석료추진과정，연후근거전로방정분석료추진효솔，최후채용전자장유한원방진분석료불동촉발방전위치대중접형선권추진기가속력、출구속도화추진효솔적영향。방진결과표명，존재일개최가적촉발방전발위치，사득포체능구재교대범위내획득교대적가속력，종이획득최대출구속도。동시분석발현，중접형선권추진기재발사과정중존재감속제동력，최대출구속도병불일정대응최대추진효솔。재다급중접형선권추진기적설계중，수착각급포체인구속도적증대，촉발방전위치수요상응우화，동시사구동선권중맥충전류파형여호감제도변화곡선필배，재능획득최대적추진효솔。
In order to obtain high exit velocity and high energy conversion efficiency of reconnection coil launcher, the firing position and pulsed current waves need to be optimally designed. The propel processes are theoretically explained, and the propel efficiency of electromechanical model is analyzed based on physical equations. The influence of discharge position on acceleration force, exit velocity and propel efficiency is simulated by electromagnetic finite element method. Simulation results indicate that best firing position which makes the projectile attain the stronger acceleration force and maximal velocity is in existence. Simulation analysis shows that brake force exists during the launch process and the maximal muzzle velocity does not correspond with maximal propel efficiency. For the maximal propel efficiency of multi-stage reconnection launcher, the discharge position should be optimization, and the current wave of drive coil requires optimum matching to the mutual inductance gradient curve.