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兵工学报 ›› 2022, Vol. 43 ›› Issue (9): 2058-2074.doi: 10.12382/bgxb.2022.0064

• 论文 • 上一篇    下一篇

防爆装备对TNT炸药爆炸强噪声的防护性能

刘瀚1, 赵耀1, 郭志威1, 冯顺山1, 黄广炎1,2   

  1. (1.北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081; 2.北京理工大学 重庆创新中心, 重庆 401120)
  • 上线日期:2022-06-30
  • 通讯作者: 黄广炎(1982—),男,教授,博士生导师 E-mail:huanggy@bit.edu.cn
  • 作者简介:刘瀚(1988—), 男, 实验师, 硕士生导师。 E-mail: liuh@bit.edu.cn
  • 基金资助:
    国家重点研发计划项目(2017YFC0822304)

Performance of Explosive-proof Equipment in Protecting Against High-level TNT Explosion Sound

LIU Han1, ZHAO Yao1, GUO Zhiwei1, FENG Shunshan1, HUANG Guangyan1,2   

  1. (1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2.Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China)
  • Online:2022-06-30

摘要: 爆炸强噪声是炸药爆炸过程中伴随的一种非致命毁伤元素,对人耳听器造成直接损伤危害。在分析爆炸强噪声感知及传播机理基础上,开展不同TNT药量爆炸噪声测试,研究裸爆(FAB)、柔性防爆罐(FEP)和钢制防爆罐(SEP)的爆炸强噪声声压/声压级传播规律,得到了两种防爆装备相对于裸爆时的爆炸强噪声防护性能。研究结果表明爆炸强噪声具有典型的低频率高声压/声压级特征:距爆心20~40 m,FAB、FEP、SEP峰值声压分别衰减约50%、52%和48%,峰值声压级分别衰减约5.7%、4.7%和4.9%;峰值声压/声压级传播历时ΔtFAB=ΔtSEP=ΔtFEP=0.057 s;FEP削弱峰值声压52%~93.5%,降低峰值声压级4.8%~9.1%,SEP削弱峰值声压24.6%~93%,降低峰值声压级1.4%~6.9%;将人耳损伤划分成4个等级,FAB以Ⅳ级和 Ⅲ级损伤为主,FEP以Ⅲ级、Ⅲ级向Ⅱ级过渡两种损伤为主,SEP以Ⅳ级向Ⅲ级损伤过渡、Ⅲ级两种损伤为主。

关键词: 爆炸安全, 多物理场, 防爆装备, 声压, 声压级

Abstract: High-level explosive noise (HLEN) is a non-lethal damage accompanying explosions, which can directly damage one's auditory system. Using the mechanism analysis of the HLEN's awareness and propagation, explosive noise tests with different TNT mass are conducted to study the sound pressure (psp), sound pressure level (pspl), propagation laws of free air burst (FAB), flexible explosive proof (FEP), and steel explosive proof (SEP). The HLEN protection performances of FEP and SEP are compared with that of FAB. The results show that the HLEN has typical characteristics of low frequency and high psp & pspl. At 20 m to 40 m from the explosion center, the peak psp attenuations are about 50%, 52%, 48%, and the peak pspl attenuations are about 5.7%, 4.7%, and 4.9% for FAB, FEP and SEP, respectively. The peak psp/pspl travel time is equal, i.e., ΔtFAB=ΔtSEP=ΔtFEP=0.057 s. FEP can weaken the peak psp by 52% to 93.5% and reduce the peak pspl by 4.8% to 9.1%. SEP can decrease the peak psp by 24.6% to 93% and reduce the peak pspl by 1.4% to 6.9%. Human ear injuries are graded on a scale of Ⅰ to Ⅳ. With FAB, the injury is mainly grade Ⅳ and Ⅲ. With FEP, the injury is mainly grade Ⅲ and grade Ⅲ-Ⅱ. With SEP, the injury is mostly grade Ⅳ-Ⅲ and grade Ⅲ.

Key words: explosivesafety, multiphysics, explosive-proofequipment, soundpressure, soundpressurelevel

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