二级轻气炮模拟空间碎片 超高速碰撞试验技术

二级轻气炮是用来模拟空间碎片超高速碰撞效应的重要设备。文章首先介绍了目前二级轻气炮国内外的发展的概况；阐述了其工作原理及所使用的工作气体和试验用品；然后讨论了影响二级轻气炮性能的初始注气压力、活塞速度、弹丸释放压力、活塞质量、弹丸质量等若干参量；最后对反映二级轻气炮性能的重要指标弹丸出口速度和动态碰撞角的测试技术和方法进行了分析。

Technology of Simulating Space Debris Hypervelocity Impact Using Two Stage Light Gas Gun

Two stage light gas gun is one of the important devices to simulate hypervelocity impact of space debris. First, recent development of two-stage light gas gun is reviewed. The principle of two-stage light gas gun, its driver gas and test facilities are expounded. Then, certain parameters affecting performance of two-stage light gas gun are discussed, including initial pressure, piston velocity, burst pressure, piston mass, projectile mass. As two important performance indexes of two-stage light gas gun, the measurement technologies of projectile velocity and dynamic impact angle are discussed finally.