Experimental Study on the Effect of Liquid-filled Tube Structure on Shock Wave Attenuation

doi:10.12382/bgxb.2023.0260

Abstract

Abstract:

In recent years, the casualties caused by regional conflicts, terrorist attacks, and other explosive environments occurred frequently, causing widespread concern at home and abroad. Body injury caused by the explosion has become the main form of injury to soldiers in modern war. Here the attenuation effect of the liquid-filled tube structure for human body protection on the shock wave is mainly studied through shock tube test. Through the liquid-filled tube, the kinetic energy of shock wave is converted into the internal energy and kinetic energy of liquid in the tube, and the transfer and dissipation of the shock wave energy are realized with the release of liquid and its energy absorption. The results show that the protective structure can attenuate the peak overpressure by up to 35% and the specific impulse by 30%. The results could provide an important reference for human protection against blast shock waves.

Key words: liquid-filled structure, shock wave protection, shock tube, overpressure, impulse

CLC Number:

O383.3

LIU Yu, LU Shufan, SUO Tao, HOU Bing, FAN Zhiqiang, LI Yuan. Experimental Study on the Effect of Liquid-filled Tube Structure on Shock Wave Attenuation[J]. Acta Armamentarii, 2024, 45(7): 2374-2382.

Figures/Tables 12

References 23

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试验编号	填充液	膜片厚度/mm	高压段初始压力/MPa	冲击波超压峰值/MPa	冲击波超压峰值衰减百分比/%	比冲量/ (Pa·s)	比冲量衰减百分比/%
c1-0-1		0.1	0.44	0.155	0	434	0
c1-0-2		0.2	0.80	0.232	0	996	0
c2-1-1	空气	0.1	0.44	0.140	9.68	339	21.81
c2-1-2	空气	0.2	0.80	0.217	6.47	715	28.21
c2-2-1	水	0.1	0.44	0.107	30.97	394	9.29
c2-2-2	水	0.2	0.80	0.183	21.12	753	24.40
c2-3-1	0.6%AMCS	0.1	0.44	0.146	5.81	425	2.15
c2-3-2	0.6%AMCS	0.2	0.80	0.208	10.34	732	26.51
c2-4-1	1.1%AMCS	0.1	0.44	0.148	4.52	426	1.76
c2-4-2	1.1%AMCS	0.2	0.80	0.200	13.79	809	18.78
c2-5-1	2.2%AMCS	0.1	0.44	0.124	20.00	339	21.87
c2-5-2	2.2%AMCS	0.2	0.80	0.200	13.79	713	28.41

试验编号	填充液	膜片厚度/mm	高压段初始压力/MPa	冲击波超压峰值/MPa	冲击波超压峰值衰减百分比/%	比冲量/ (Pa·s)	比冲量衰减百分比/%
c1-0-1		0.1	0.44	0.155	0	434	0
c1-0-2		0.2	0.80	0.232	0	996	0
c2-1-1	空气	0.1	0.44	0.140	9.68	339	21.81
c2-1-2	空气	0.2	0.80	0.217	6.47	715	28.21
c2-2-1	水	0.1	0.44	0.107	30.97	394	9.29
c2-2-2	水	0.2	0.80	0.183	21.12	753	24.40
c2-3-1	0.6%AMCS	0.1	0.44	0.146	5.81	425	2.15
c2-3-2	0.6%AMCS	0.2	0.80	0.208	10.34	732	26.51
c2-4-1	1.1%AMCS	0.1	0.44	0.148	4.52	426	1.76
c2-4-2	1.1%AMCS	0.2	0.80	0.200	13.79	809	18.78
c2-5-1	2.2%AMCS	0.1	0.44	0.124	20.00	339	21.87
c2-5-2	2.2%AMCS	0.2	0.80	0.200	13.79	713	28.41

试验编号	缓冲剂	膜片厚度/mm	初始压力/MPa	冲击波超压峰值/MPa	冲击波超压峰值衰减百分比/%	比冲量/ (Pa·s)	比冲量衰减百分比/%
c3-1-1	水	0.1	0.44	0.100	35.48	306	29.63
c3-1-2	水	0.2	0.80	0.185	20.26	630	36.75

试验编号	缓冲剂	膜片厚度/mm	初始压力/MPa	冲击波超压峰值/MPa	冲击波超压峰值衰减百分比/%	比冲量/ (Pa·s)	比冲量衰减百分比/%
c3-1-1	水	0.1	0.44	0.100	35.48	306	29.63
c3-1-2	水	0.2	0.80	0.185	20.26	630	36.75