摘要
为研究钨合金破片对固体推进装置的毁伤效应,依据功能等效和强度等效原则,设计了固体导弹发动机缩比等效靶标,并以球形钨合金破片为毁伤元,开展了质量为3.1g与4.7g的钨合金破片分别以不同入射角、不同初速侵彻固体导弹发动机靶标的实验,对3种典型实验现象进行分析。结果表明,当钨合金破片侵彻比动能在垂直靶标方向上的分量小于7.81×10^(6)J/m^(2)时,在贯穿发动机外层壳体后仅对推进剂造成结构破坏;当钨合金破片侵彻比动能在垂直靶标方向上的分量为1.03×10^(7)J/m^(2)时,侵入推进剂后还剩余少量动能,会先破坏推进剂结构,然后引起推进剂延迟燃烧,甚至引起发动机爆炸;当钨合金破片侵彻比动能在垂直靶标方向上的分量大于5.22×10^(7)J/m^(2)时,贯穿发动机外层壳体后能立即引燃推进剂。
In order to study the damage effect of tungsten alloy fragments on the solid propulsion device,according to the principle of functional and strength equivalence,the scaled equivalent target of solid missile engine was designed,spherical tungsten alloy fragments were used as the damage element,and the tests about tungsten alloy fragments with mass of 3.1g and 4.7g penetrating the solid missile engine target at different incident angles and initial velocities were carried out.Three typical test phenomena were analyzed.The results show that when the component of the specific kinetic energy of the tungsten alloy fragments,which is perpendicular to the target,is less than 7.81×10^(6)J/m^(2),only the structural damage to the propellant occurs after penetrating the outer shell of the engine.When the same component is 1.03×10^(7)J/m^(2),a small amount of kinetic energy is remained after intruding into the propellant,which will destroy the propellant structure first,and then cause the delayed combustion of the propellant and even cause the explosion of the engine;When the same component is bigger than 5.22×10^(7)J/m^(2),the propellant will immediately ignite after penetrating the outer shell of the engine.
作者
汤钧晖
王金涛
沈飞
余文力
沈慧铭
杭贵云
TANG Jun-hui;WANG Jin-tao;SHEN Fei;YU Wen-li;SHEN Hui-ming;HANG Gui-yun(Rocket Force University of Engineering,Xi′an 710025,China;Xi′an Modern Chemistry Research Institute,Xi′an 710069,China)
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2021年第5期674-679,共6页
Chinese Journal of Explosives & Propellants
关键词
爆炸力学
毁伤效应
固体推进装置
固体导弹发动机
钨合金破片
侵彻比动能
explosion mechanics
damage effect
solid propulsion device
solid missile engine
tungsten alloy fragments
penetration specific kinetic energy
