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基于任意拉格朗日流固耦合算法,运用有限元软件ANSYS/LS-DYNA研究了挡墙作用下爆炸冲击波的远场传播特性与衰减规律。计算模拟了不同情况的挡墙对冲击波对远场的作用和影响。计算结果表明,挡墙的防护作用较为明显,在一定范围内,挡墙越高、挡墙距爆源越近防护作用越明显。通过计算和分析知,科学、合理的设置挡墙的尺寸和位置对爆炸冲击波的远场防护具有重要的意义。
The far-field propagating characteristics and attenuation law of blast shock wave under the action of retaining wall were studied by ANSYS / LS-DYNA based on arbitrary Lagrange fluid-solid coupling algorithm. The effect and influence of the retaining wall on the far field calculated by different conditions are simulated. The calculation results show that the protective effect of retaining wall is obvious. Within a certain range, the higher the retaining wall, the closer the protective wall to the explosive source is. Through calculation and analysis, the size and location of the retaining wall scientifically and rationally are of great significance to the far-field protection of the blast shock wave.