| 地下结构中爆炸冲击波峰值压力衰减规律灰色小波预测 |
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| 引用本文： | 孙惠香,许金余,范珉.地下结构中爆炸冲击波峰值压力衰减规律灰色小波预测[J].煤炭学报,2011,36(Z2):406-410. |
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| 作者姓名： | 孙惠香 许金余 范珉 |
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| 作者单位： | 空军工程大学 工程学院，陕西 西安 710038 |
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| 摘 要： | 应用灰色预测和小波分解与重构理论结合ANSYS/LS-DYNA非线性动力有限元数值模拟，对不同跨度地下拱形结构在不同垂直起爆距离时结构承受的冲击波峰值压力进行模拟，得到了不同跨度地下结构的冲击波峰值压力变化曲线，并通过数值模拟验证了预测结果的准确性，平均误差为3.44%。
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| 关 键 词： | 爆炸荷载 峰值压力 灰色小波预测 地下拱形结构 |
| 收稿时间： | 2011-04-05 |
The fall law of peak pressure forecast with gray and wavelet theory of underground structure subjecting to blasting load |
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| Abstract: | The gray prediction and wavelet decomposition and reconstruction theory were used to study the peak pressure of underground arch structure with different spans combined with numerical simulations applying ANSYS/LS DYNA.And the peak pressure varietal laws of underground arch structure with different span were obtained subjecting to blasting load of different location.And the predicted result was verified to be accurate by numerical simulation.And the average relative error is only 3.44%. |
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| Keywords: | blast load peak pressure grey wavelet prediction underground arch structure |
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