摘要
利用建立的二级轻气炮加载系统及光辐射特征采集系统开展了2A12铝弹丸以30°入射角度、2. 5 km/s和3. 1km/s的碰撞速度撞击天然白云石诱发的光辐射特征实验研究。利用光谱仪得到了250～870 nm波长范围的光谱强度、弹靶材料的元素组成以及铝元素的电子激发温度,由光纤高温计测量500 nm、550 nm、650 nm、700 nm波长对应的闪光辐射电压值计算得到了闪光辐射强度及闪光辐射温度的演化曲线。研究结果表明,由光谱测量得到的元素与实际的弹靶材料元素组成具有较好的一致性;闪光辐射强度、闪光辐射温度及电子激发温度随碰撞速度的增加而增大,并且闪光辐射温度低于电子激发温度。
The two-stage light gas gun loading system and characteristics of spectral radiation acquisition system were adopted to study the light radiant characteristics of 2A12 aluminum projectile impacting on natural dolomite at the incident angle of 30 degrees and the impact velocity of 2.5 km/s and 3.1 km/s.The spectral intensities in the rang of 250~870 nm,elemental composition of the projectile and target material,electron excitation temperature of Al element and the evolutionary curves of flash radiant temperature were obtained by using spectrometer and pyrometer.The results show that the composition of the elements obtained by the spectral measurements have good consistency with that of the real projectile and target materials,the flash radiant temperature and electron excitation temperature increase with the increasing of impact velocity,and the flash radiant temperature is lower than the electron excitation temperature.
作者
韩雅菲
唐恩凌
贺丽萍
HAN Yafei;TANG Enling;HE Liping(School of Equipment Engineering,Shenyang Ligong University,Shenyang 110159,China)
出处
《兵器装备工程学报》
CAS
北大核心
2019年第5期224-228,共5页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(11472178
11272218
11802182)
超高速碰撞研究中心2019年度开放基金项目(20190201)
关键词
高速碰撞
光谱测量
闪光辐射温度
电子激发温度
high-velocity impact
spectral measurement
flash radiant temperature
electron excitationtemperature
