| 矿用救生舱抗爆炸TNT当量与冲击载荷研究 |
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| 引用本文： | 白博,李志强,王志华,赵隆茂.矿用救生舱抗爆炸TNT当量与冲击载荷研究[J].科学技术与工程,2014,14(17). |
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| 作者姓名： | 白博 李志强 王志华 赵隆茂 |
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| 作者单位： | 太原理工大学 应用力学与生物医学工程研究所,太原理工大学 应用力学与生物医学工程研究所,太原理工大学 应用力学与生物医学工程研究所,太原理工大学 应用力学与生物医学工程研究所 |
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| 基金项目： | 国家自然科学基金资助(11072166)；山西省特色重点学科建设项目资助。 |
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| 摘 要： | 研究设置有救生舱的井下巷道中瓦斯爆炸的TNT当量,冲击波的传播特性,以及对舱体的冲击载荷。利用显式动力学分析软件LS-Dyna,通过一点多物质ALE流固耦合算法模拟得到爆炸冲击波的传播过程。当冲击波由救生舱前端传至后端并衰减至其峰值载荷的10%时,确定了舱体所受载荷达到规范要求时瓦斯的TNT当量;并得到了舱体各部位的实际载荷曲线,为计算救生舱抗冲击动态响应时载荷施加以及优化设计提供了依据。
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| 关 键 词： | 煤矿瓦斯 爆炸冲击波 超压峰值 矿用救生舱 流固耦合 |
| 收稿时间： | 2013/12/23 0:00:00 |
| 修稿时间： | 2014/1/14 0:00:00 |
Research on the TNT equivalent and impact load in anti-explosion of mine rescue capsule |
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| BAI Bo,LI Zhi-qiang,WANG Zhi-hua and ZHAO Long-mao.Research on the TNT equivalent and impact load in anti-explosion of mine rescue capsule[J].Science Technology and Engineering,2014,14(17). |
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| Authors: | BAI Bo LI Zhi-qiang WANG Zhi-hua and ZHAO Long-mao |
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| Institution: | Institute of applied mechanics and biomedical engineering,Taiyuan University of Technology,Institute of applied mechanics and biomedical engineering,Taiyuan University of Technology,Institute of applied mechanics and biomedical engineering,Taiyuan University of Technology |
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| Abstract: | In order to study the TNT equivalent and the characteristics of shock wave propagation, which exist in the gas explosion of underworkings with a rescue capsule, as well as determines the impact load on the rescue capsule. It has simulated blast wave spreading process by using one-point multi-material ALE fluid-structure interaction algorithm of LS-Dyna. When the blast wave propagates from rescue capsule front to back and decays to 10% of peak load, which obtaining the TNT equivalent of gas and the actual load curve of capsule structure anti-blast analysis. This rusult provides a theory for research of load applied when calculating capsule anti-blast performance and a basis for designing capsule reasonably. |
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| Keywords: | coal-mine gas explosive shock wave overpressure peak value refuge chamber fluid-structure interaction |
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