爆炸实验水池防护性能及动力学响应分析
发布时间：2018-11-07 19:30
【摘要】：针对爆炸实验水池强度设计问题,利用非线性动力学程序LS-DYNA对10 kg TNT爆炸后的水中冲击波传播规律及爆炸水池结构动态响应情况进行了数值模拟,对空气桶和气泡帷幕削弱水中冲击波的能力进行了定量计算,结果表明:空气桶对冲击波峰值压力削弱作用接近50%,对比冲量削弱作用达到16.2%;气泡帷幕对壁面反射冲击波的削弱作用高达86.2%,对比冲量削弱作用达到75.6%。在此基础上进一步分析了冲击载荷作用以及结构响应机理,指出了内衬钢板和混凝土围堰的危险区域,对爆炸能量在各物质间的分配和传递规律进行了初步探索,为相关爆炸水池的工程设计提供参考。
[Abstract]:Aiming at the problem of strength design of explosion experimental tank, the propagation law of shock wave in water and the dynamic response of explosion pool structure after 10 kg TNT explosion were numerically simulated by nonlinear dynamic program LS-DYNA. The ability of air barrel and bubble curtain to weaken the shock wave in water is calculated quantitatively. The results show that the weakening effect of air bucket on the peak pressure of shock wave is close to 50 and that of contrast impulse is 16.2; The weakening effect of bubble curtain on wall reflection shock wave is up to 86.2 and the contrast impulse weakening effect is 75.6. On this basis, the impact load and the structure response mechanism are further analyzed, the dangerous zone of lining steel plate and concrete cofferdam is pointed out, and the distribution and transfer law of explosion energy among different materials are preliminarily explored. It provides a reference for the engineering design of the related explosion pool.
【作者单位】： 中国华阴兵器试验中心;解放军理工大学野战工程学院;
【基金】：总装备部试验技术研究重点项目(2011SY3213001)
【分类号】：O383.1
本文编号：2317356
[Abstract]:Aiming at the problem of strength design of explosion experimental tank, the propagation law of shock wave in water and the dynamic response of explosion pool structure after 10 kg TNT explosion were numerically simulated by nonlinear dynamic program LS-DYNA. The ability of air barrel and bubble curtain to weaken the shock wave in water is calculated quantitatively. The results show that the weakening effect of air bucket on the peak pressure of shock wave is close to 50 and that of contrast impulse is 16.2; The weakening effect of bubble curtain on wall reflection shock wave is up to 86.2 and the contrast impulse weakening effect is 75.6. On this basis, the impact load and the structure response mechanism are further analyzed, the dangerous zone of lining steel plate and concrete cofferdam is pointed out, and the distribution and transfer law of explosion energy among different materials are preliminarily explored. It provides a reference for the engineering design of the related explosion pool.
【作者单位】： 中国华阴兵器试验中心;解放军理工大学野战工程学院;
【基金】：总装备部试验技术研究重点项目(2011SY3213001)
【分类号】：O383.1
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1 杨凯;王辉;齐存秀;;狭缝扫描技术在爆炸实验中的研究及应用[A];第五届全国爆炸力学实验技术学术会议论文集[C];2008年
，本文编号：2317356
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