不同激光点火能量下脉冲等离子体推进性能试验研究  

Experimental Research on the Performance of Pulsed Plasma Propulsion under Different Laser Ignition Energy

作　　者：詹玉豪 李南雷 ZHAN Yu-Hao;LI Nan-Lei(State Key Laboratory of Laser Propulsion&Application,Department of Aerospace Science and Technology,Space Engineering University,Beijing 101416,China)

机构地区：[1]航天工程大学宇航科学与技术系激光推进及应用国家重点实验室,北京101416

出　　处：《机电产品开发与创新》2021年第6期14-16,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：本文基于激光加电磁组合推进这一新型技术,从推进器设计、试验平台搭建入手,设置电容充电电压2000V,采用不同激光能量进行激光支持的脉冲等离子体推进(LS-PPT)元冲量、比冲等参数测量,并对LS-PPT工作过程中的等离子体羽流进行拍照。通过光学影像与推进性能的对比分析可以看出,随着激光能量的增大,推进器性能先增大后减小,激光纯烧蚀阶段等离子体速度变大,但在电磁加速阶段等离子体数量、亮度等都先增大后减小。The article is based on the new technology of laser and electromagnetic combined propulsion,starting from the design of the propeller and the construction of the test platform.Set the capacitor charging voltage to 2000V,and use different laser energies to measure parameters such as laser-supported pulse plasma propulsion(LS-PPT)impulse and specific impulse,and take pictures of the plasma plume.Through the comparative analysis of optical image and propulsion performance,it can be seen that with the increase of laser energy,the performance of the thruster first increases and then decreases.The plasma velocity increases during the pure laser ablation stage,but the amount of plasma during the electromagnetic acceleration stage,Brightness,etc.are all increased first and then decreased.

关 键 词：激光 脉冲等离子体推进 等离子体 元冲量 

分 类 号：V439.1[航空宇航科学与技术—航空宇航推进理论与工程]