钨合金破片对固体推进装置的毁伤效应实验  

Experiment on the Damage Effect of Tungsten Alloy Fragments on Solid Propulsion Device

作　　者：汤钧晖 王金涛 沈飞 余文力[1] 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)

机构地区：[1]火箭军工程大学,陕西西安710025 [2]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2021年第5期674-679,共6页Chinese Journal of Explosives & Propellants

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.

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 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V435[航空宇航科学与技术—航空宇航推进理论与工程]