等效水下爆炸冲击加载装置的设计研究

doi:10.3969/j.issn.1000-1093.2014.06.016

兵工学报 ›› 2014, Vol. 35 ›› Issue (6): 857-863.doi: 10.3969/j.issn.1000-1093.2014.06.016

等效水下爆炸冲击加载装置的设计研究

项大林¹，荣吉利¹，何轩¹，胡长华¹，李健²，张伟³，任鹏³

(1.北京理工大学宇航学院, 北京 100081;2.广西科技大学广西汽车零部件与整车技术重点实验室广西柳州 545006;3.哈尔滨工业大学空间碎片高速撞击研究中心黑龙江哈尔滨 150080)

收稿日期:2013-06-20 修回日期:2013-06-20 上线日期:2014-07-24
通讯作者: 项大林 E-mail:xiangdalin1985@sina.com
作者简介:项大林(1985—)，男，博士后
基金资助:
国家自然科学基金项目（11272057）; 国家自然科学青年基金项目（51209042）

Development of an Equivalent Equipment on Underwater Explosion Impulsive Loading

XIANG Da-lin¹， RONG Ji-li¹， HE Xuan¹, HU Chang-hua¹， LI Jian² , ZHANG Wei³， REN Peng³

(1.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081,China;2.Guangxi Key laboratory of Automobile Components and Vehicle Technology, Guangxi University of3.Hypervelocity Impact Research Center, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

Received:2013-06-20 Revised:2013-06-20 Online:2014-07-24
Contact: XIANG Da-lin E-mail:xiangdalin1985@sina.com

摘要/Abstract

摘要： 为了获取等效水下爆炸冲击波载荷，基于一维弹性波理论与水介质的线性状态方程，对飞片撞击充水锥形靶舱进行了理论分析。采用AUTODYN有限元软件，对撞击过程进行了数值模拟，对比分析了两种活塞厚度对应的冲击波衰减时间。根据理论与数值模拟研究结果，设计组装了等效水下爆炸冲击加载实验装置，测得了水靶舱侧壁中心处的冲击波压力时程曲线。研究结果表明：在实验室范围内通过飞片撞击锥形水靶舱，获取等效水下爆炸冲击波载荷是可行的，而且飞片速度与活塞厚度决定了水靶舱内冲击波的压力峰值与衰减时间；研制的加载装置可用于典型结构与材料的水下爆炸冲击响应分析研究。

关键词: 爆炸力学, 水下爆炸, 水靶舱, 撞击, 冲击波载荷

Abstract: In order to obtain an equivalent underwater explosion impulsive loading, the theoretical analysis is carried out for the impact of a flyer plate on a piston, which seals a conical target chamber filled with water, based on one-dimensional elastic wave propagation and a linear equation of state for water. The impact process is simulated by using AUTODYN software, and the decay times of shock waves for two pistons with different thicknesses are analyzed and compared. According to the theory and numerical simulation research, an equivalent equipment is designed, and the pressure-time curve is measured at the central point of chamber medial wall. The results show that it is feasible to obtain an equivalent underwater explosion shock waves in the laboratory through high speed impact, and the flyer speed and the piston thickness determine the peak pressure and decay time in the conical target chamber, respectively. The equivalent equipment can be used to investigate the shock response of typical structures and materials subjected to underwater explosion impulse loading.

Key words: explosion mechanics, underwater explosion, target chamber, impact, shock wave loading

中图分类号:

O383

项大林，荣吉利，何轩，胡长华，李健，张伟，任鹏. 等效水下爆炸冲击加载装置的设计研究[J]. 兵工学报, 2014, 35(6): 857-863.

XIANG Da-lin， RONG Ji-li， HE Xuan, HU Chang-hua， LI Jian , ZHANG Wei， REN Peng. Development of an Equivalent Equipment on Underwater Explosion Impulsive Loading[J]. Acta Armamentarii, 2014, 35(6): 857-863.

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等效水下爆炸冲击加载装置的设计研究

Development of an Equivalent Equipment on Underwater Explosion Impulsive Loading

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