冲击波作用有/无防护颅脑靶标动态响应规律

doi:10.12382/bgxb.2022.0483

摘要/Abstract

摘要： 为探究真实工况下冲击波作用颅脑动态响应特性，开展单兵火箭弹膛口冲击波作用有/无防护颅脑靶标试验。分析颅脑内不同位置的压力特性和演化历程，并对比有/无防护下颅脑内压力变化。对比结果表明：无头盔颅脑内压力时程曲线表现出非典型冲击波特征，超压上升速度较慢，持续时间较长，并有正负压交替振荡效应，振荡周期为1 ms左右；无头盔颅脑内不同位置，压力峰值差异显著，冲击对侧表现出显著的负压特征，其正压力峰值超过冲击侧近1倍，但不同位置的冲量大小比较接近；头盔防护后颅脑内不同位置的压力衰减率差异显著，带头盔后冲击波对侧颅脑区域压力峰值和冲量衰减较明显并且会削弱或抑制冲击对侧的负压效应，而冲击侧颅脑区域衰减不明显，甚至有部分区域颅脑压力峰值增强。

关键词: 单兵火箭弹, 冲击波, 颅脑靶标, 头盔, 超压特性

Abstract: To explore the dynamic physical response of cranial brain under shock wave in warfare conditions, a physical model of protected/unprotected head surrogate impacted by shock wave from a soldier's rocket muzzle and intracranial pressure is developed. The pressure and evolution of different intracranial parts are analyzed. The intracranial pressure evolution for protected/unprotected head surrogates are compared. Under muzzle shock wave, the time-overpressure curve of unprotected intracranial pressure exhibits atypical shock wave characteristics. Unlike typical shock waves, the overpressure rises more slowly and lasts longer. The overpressure curve exhibits alternating oscillations of positive and negative pressure. The oscillation period is about 1 ms. The peak overpressure varies significantly in different intracranial parts. The counter shock side of the intracranial exhibits a significant negative pressure. The peak positive pressure on the counter shock side is nearly twice of that on the shock side, but the pressure impulses at different intracranial points are close to one another. Overpressure attenuation rates of different protected intracranial parts vary significantly. Compared with other intracranial parts, the overpressure attenuation rate of the counter shock side is highest. Moreover, the negative pressure effect on the counter shock side is weakened when covered with armor. The attenuation rate of the overpressure on the shock side is not obvious. The peak overpressure even increases in some parts with amor covered.

Key words: individualsoldierrocket, shockwave, headsurrogate, armor, overpressurecharacteristics

中图分类号:

TJ012.4

熊漫漫, 覃彬, 徐诚, 安硕, 伍杨. 冲击波作用有/无防护颅脑靶标动态响应规律[J]. 兵工学报, 2022, 43(9): 2182-2189.

XIONG Manman, QIN Bin, XU Cheng, AN Shuo, WU Yang. Dynamic Physical Response Law of Protected/Unprotected Head Surrogate Under Shock Wave[J]. Acta Armamentarii, 2022, 43(9): 2182-2189.

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