巷道内爆炸冲击作用下煤矿救生舱动态响应的数值分析

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (11) : 28-33.

论文

荣吉利，刘迁，项大林

作者信息 +

Numerical simulation on the dynamic response of mine rescue chamber subjected to explosion impact in the tunnel

RONG Ji-li LIU Qian Xiang Da-lin

Author information +

文章历史 +

摘要

运用AUTODYN有限元软件，基于流-固耦合方法，分析了某型号圆柱形救生舱在巷道内的冲击响应规律。研究表明，冲击载荷峰值压力为2.14MPa时，救生舱受前端面和尾端面冲击的最大等效应力均未达到强度极限，迎爆面中心点的最大位移也均未超过失效准则的要求，救生舱强度符合国家标准。当迎爆面换成平面结构时，在相同的爆炸冲击下，救生舱发生了强度失效和变形失效，这说明采用凸出结构的迎爆面可以增强救生舱的抗冲击性能，相关结论对救生舱的设计具有一定工程价值。

Abstract

Using commercial software AUTODYN, dynamic responses of a type of cylindrical rescue chamber subjected to explosion impact in the tunnel were analyzed based on the fluid-solid coupling method. Simulation results show that under 2.14MPa peak pressure of the impact load, maximum equivalent stress generated by front end face shock and back end face shock were below the ultimate strength respectively; both maximum displacements of center on the blast front did not exceed the requirements of failure criteria. The above results demonstrated the strength of the rescue chamber met national standards. When the blast front was changed to a plane structure, strength failure and deformation failure occurred under the exact same explosion impact, which illustrated the better impact resistance of the protruding structure. The results provide scientific foundation for design modification and safe use of chambers.

导出引用

荣吉利，刘迁，项大林. 巷道内爆炸冲击作用下煤矿救生舱动态响应的数值分析[J]. 振动与冲击, 2016, 35(11): 28-33

RONG Ji-li LIU Qian Xiang Da-lin. Numerical simulation on the dynamic response of mine rescue chamber subjected to explosion impact in the tunnel[J]. Journal of Vibration and Shock, 2016, 35(11): 28-33

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