内爆驱动式超高速发射技术的初步研究  

Preliminary Simulation and Experimental Study on Implosion-Driven Hypervelocity Launching Technology

作　　者：王马法[1] HIGGINS Andrew J 焦德志[1] 黄洁[1] 柳森[1] WANG Mafa;HIGGINS Andrew J;JIAO Dezhi;HUANG Jie;LIU Sen(China Aerodynamics Research and Development Center,Mianyang 621000,Sichuan,China;Department of Mechanical Engineering,McGill University,Montreal H3A2K6,Quebec,Canada)

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]麦吉尔大学工程力学系,魁北克蒙特利尔H3A2K6,加拿大

出　　处：《高压物理学报》2020年第3期56-63,共8页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金(11802330)。

摘　　要：为获得10 km/s左右的超高速发射能力,以内爆发射器为研究对象,利用AUTODYN 2D软件对口径为8 mm的内爆发射器进行有限元仿真分析,获得了典型状态下的弹丸发射速度。研制了口径为8 mm的内爆发射器,并在压缩管中填充5 MPa氦气进行实验,分别获得了0.55 g铝合金弹丸7.95 km/s和0.37 g镁合金弹丸10.28 km/s的发射速度,与有限元仿真计算结果的速度偏差分别为15.3%和3.7%。结果表明,设计的内爆发射器具备10 km/s发射能力,满足空间碎片撞击和防护研究的超高速发射需求。For achieving the hypervelocity launching of about 10 km/s,an implosion-driven launcher with the caliber of 8 mm diameter was analyzed using the AUTODYN 2 D software.The projectile launching velocities under typical operation condition were obtained.Based on numerical simulation results,several tests of the implosion-driven launcher with the caliber of 8 mm diameter were carried out.The driven gas of helium with the pressure of 5 MPa was filled in the compressed pipe.The experimental results show that the0.55 g aluminum and 0.37 g magnesium projectiles could be launched to the velocity of 7.95 km/s and10.28 km/s,respectively,and the relative deviations between the numerical and experimental results are15.3% and 3.7%,respectively.Consequently,the designed implosion-driven launcher can realize the launching of the projectiles to 10 km/s or even higher which could provide a new ground-test method for investigating the impact features of orbital debris and corresponding shield technologies.

关 键 词：发射技术 超高速 内爆驱动式 

分 类 号：O521.3[理学—高压高温物理]