公交车起火逃生通道的聚能射流开辟与扩充

付艳恕 俞建魁

付艳恕, 俞建魁. 公交车起火逃生通道的聚能射流开辟与扩充[J]. 高压物理学报, 2017, 31(2): 162-168. doi: 10.11858/gywlxb.2017.02.008
引用本文: 付艳恕, 俞建魁. 公交车起火逃生通道的聚能射流开辟与扩充[J]. 高压物理学报, 2017, 31(2): 162-168. doi: 10.11858/gywlxb.2017.02.008
FU Yan-Shu, YU Jian-Kui. Exploring and Enlarging Escapeway by Shaped Chargefor Ignited Bus[J]. Chinese Journal of High Pressure Physics, 2017, 31(2): 162-168. doi: 10.11858/gywlxb.2017.02.008
Citation: FU Yan-Shu, YU Jian-Kui. Exploring and Enlarging Escapeway by Shaped Chargefor Ignited Bus[J]. Chinese Journal of High Pressure Physics, 2017, 31(2): 162-168. doi: 10.11858/gywlxb.2017.02.008

公交车起火逃生通道的聚能射流开辟与扩充

doi: 10.11858/gywlxb.2017.02.008
基金项目: 

国家自然科学基金 11202093

国家自然科学基金 11662010

江西省自然科学基金 20151BAB216022

详细信息
    作者简介:

    付艳恕(1982—), 男, 博士, 副教授, 主要从事结构冲击动力学响应研究. E-mail: yshfu@ncu.edu.cn

  • 中图分类号: O389

Exploring and Enlarging Escapeway by Shaped Chargefor Ignited Bus

  • 摘要: 基于线型聚能射流独特的切割能力,尝试将其应用于公交车起火逃生通道的开辟与扩充。利用ANSYS/LS-DYNA有限元软件建立射流切割门、窗边框行为的数值分析模型。数值计算表明:环形聚能装药结构的圆弧段存在药型罩结构不对称性和爆轰波衍射等特征,对射流均具有消极影响;但合理的参数设计可保障射流开辟与扩充逃生通道的能力,不仅能在微秒级时间内形成逃生通道,而且可使形成的逃生通道不留根底,以利于体能弱势人群逃生。该方案可作为公交车起火安全应对策略。

     

  • 图  聚能射流结构示意

    Figure  1.  Structure of shaped charge

    图  平板碰撞产生射流

    Figure  2.  Jet formation after plates impact

    图  射流和杵体

    Figure  3.  Jet and slug

    图  聚能射流切割器几何模型

    Figure  4.  Geometry structure of the shaped charge

    图  公交车结构拟切割区域

    Figure  5.  Cutting regions for exploring and enlarging escapeway after bus caught fire

    图  射流偏离轴线特性计算结果

    Figure  6.  Calculation result showing the off-axis jet

    图  绕圆弧拐角切割效果

    Figure  7.  Cutting performance at the arc zone

    图  切割环形方框形成逃生通道

    Figure  8.  Exploring escapeway by the circle shaped charge

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出版历程
  • 收稿日期:  2015-12-09
  • 修回日期:  2016-02-25

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