| 爆炸地震波的一种特征化描述方法 |
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| 引用本文： | 林大超,白春华,张奇,王仲琦. 爆炸地震波的一种特征化描述方法[J]. 北京理工大学学报(英文版), 2000, 9(3): 249-254 |
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| 作者姓名： | 林大超 白春华 张奇 王仲琦 |
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| 作者单位： | 北京理工大学爆炸灾害预防与控制国家重点实验室!北京100081 |
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| 基金项目： | NationalNaturalScienceFoundation (19972013) |
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| 摘 要： | 在实验测试结果分析的基础上 ,提出一种新的爆炸地震波特征化描述方法 .将爆炸地震波函数分解为调幅部分和随机部分 ,对于后者 ,应用Weirstrass Mandelbrot (W M )分形函数得到了分形维数及相关的特征参数 .与传统的统计参数比较 ,新的参数集与所选择的时间长度尺度和测试仪器无关 .所给出的一个模拟实例表明 ,理论结果与实验测试结果相吻合
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| 关 键 词： | 地震波 爆炸地震效应 分形 随机振动 |
Characterization Method of Explosion Seismic Wave |
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| LIN Da-chao,BAI Chun-hu,ZHANG Qi and WANG Zhong-qi. Characterization Method of Explosion Seismic Wave[J]. Journal of Beijing Institute of Technology, 2000, 9(3): 249-254 |
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| Authors: | LIN Da-chao BAI Chun-hu ZHANG Qi WANG Zhong-qi |
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| Affiliation: | National Key Laboratory for the Prevention and Control of Explosion Disaster, Beijing Institute of Technology, Beijing 100081;National Key Laboratory for the Prevention and Control of Explosion Disaster, Beijing Institute of Technology, Beijing 100081;National Key Laboratory for the Prevention and Control of Explosion Disaster, Beijing Institute of Technology, Beijing 100081;National Key Laboratory for the Prevention and Control of Explosion Disaster, Beijing Institute of Technology, Beijing 100081 |
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| Abstract: | A new characterization method of explosion seismic wave is suggested on the basis of the analysis of experimental measured results. The seismic wave function is resolved into amplitude modulation part and random one. For the latter, the fractal dimension and the relevant characterization parameters are yielded by using the Weirstrass Mandelbrot (W M) fractal function. In contrast with conventional statistical parameters, the new set of parameters is independent of the chosen time length scales and the measuring instruments. A modeling example is presented which shows that the theoretical results are in agreement with the experimental results. |
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| Keywords: | seismic wave explosion seismic effect fractal random vibration |
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