摘要
为了研究激光能量和电能量对激光与电磁组合推进性能的影响,本文建立了激光与电磁组合推进实验系统。以聚四氟乙烯(PTFE)为工质分别研究了激光烧蚀推进、脉冲等离子体电推进以及激光与电磁组合推进系统的推进性能。在不同的激光能量和电能量下,对比冲量耦合系数、比冲、推进效率和等离子体飞行速度,研究激光与电磁组合推进模式下的最优激光能量和电能量。研究结果表明:随着激光能量的增加,激光与电磁组合推进的推进性能均先增大后减小,在最优激光烧蚀冲量耦合系数附近达到激光能量的最优值;电能增加能够提高激光与电磁组合推进的冲量、比冲和推进效率和等离子体飞行速度,对冲量耦合系数的影响不大。
A system of laser-electromagnetic hybrid propulsion was established to study the effect of energy on Propulsion Performance with Laser-electromagnetic Hybrid Propulsion. Teflon(PTFE) was used as working material on laser ablation propulsion,pulse plasma propulsion and laser-electromagnetic hybrid propulsion,to research its propulsion performance. The propulsion performance of impulse coupling coefficient,specific impulse,thrust efficiency and plasma flight velocity were researched to find out how do the laser energy and electric energy effect them. The result demonstrate that,as the increase of the laser energy,the propulsion performances of laser-electromagnetic hybrid propulsion system rise up and then go down. The optimal laser energy is when the working material are under the best impulse coupling coefficient on laser ablation propulsion. The increase of electric energy can make impulse,specific impulse,thrust efficiency and plasma flight velocity higher but it had no influence on impulse coupling coefficient.
作者
张志伟
叶继飞
祝超
李南雷
ZHANG Zhi-Wei;YE Ji-Fei;ZHU Chao;LI Nan-Lei(State Key Laboratory of laser propulsion and application,Space Engineering University,Beijing 101416,China)
出处
《机电产品开发与创新》
2019年第3期68-71,共4页
Development & Innovation of Machinery & Electrical Products
