反应气体驱动二级轻气炮技术的初步研究

摘要

The two-stage light gas gun is a conventional device for accelerating a projectile commonly chosen for research owing to its wide range of launching velocities,good repeatability and flexible work environment,and is widely used in studies of high pressure physics,space debris protection,and mechanical properties and dynamic responses of materials.However,as the traditional light gas gun uses explosive as the energy source,it suffers from the disadvantages of comparatively heavy molecular weight and low sound velocity,poisonous products,requirement of special conditions for transportation and storage.In this work we developed a novel two-stage light gas gun,whose driving energy is supplied by the gaseous chemical reaction,and whose highest velocity in projectile-launching reaches 5.6 km/s.This novel technology is inexpensive,free from use of explosive and environment-friendly.%二级轻气炮是一种常见的超高速发射装置,其发射速度的调节范围大,弹速重复性好,对场地条件的要求不高,在高压物理、空间碎片防护、材料力学性能及动态响应研究等方面有广泛的应用.但是传统的轻气炮采用火药作为驱动能源,存在火药分子质量大、声速低、产物有毒、运输和存储受限等缺点.为此,设计并发展了用气体反应释能代替火药作为驱动能源的反应气体驱动二级轻气炮技术,实测发射弹速达到5.6 km/s.该技术是一种廉价、无需火工品、环境友好型气炮驱动技术.