| 基于小波包理论的爆破振动信号能量分析研究 |
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| 引用本文： | 孙伟,杨溢,李洪昌,顾澄,马秋,雍伟勋,费志文.基于小波包理论的爆破振动信号能量分析研究[J].有色矿冶,2010,26(5):7-9. |
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| 作者姓名： | 孙伟 杨溢 李洪昌 顾澄 马秋 雍伟勋 费志文 |
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| 作者单位： | [1]中国有色金属工业昆明勘察设计研究院,云南昆明650051 [2]昆明理工大学,云南昆明650093 |
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| 摘 要： | 爆破振动信号是一种极为复杂的非平稳信号,具有持时短、突变快的特点,本文结合实际爆破监测数据,利用小波包变化提取信号的频带能量分布特征,对爆破振动信号中不同频带的能量特征进行了分析研究。研究结果表明:爆破振动信号能量绝大部分集中在0～200Hz,在这一频带根据爆破条件不同其能量又分布于不同子频带。随着爆破药量、爆破地震波传播距离的增大,低频带所占能量不断增加。因此该方法对爆破地震波传播及破坏机理,以及爆破降振研究是一种有效的方法。
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| 关 键 词： | 小波包分析 爆破振动 能量分析 爆破降振 采矿工程 |
Research of the Energy Analysis for Blast Vibration Signals Based on Wavelet Packet Theory |
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| SUN Wei,YANG Yi,LI Hong-chang,GU Cheng,MA Qiu,YONG Wei-xun,FEI Zhi-wen.Research of the Energy Analysis for Blast Vibration Signals Based on Wavelet Packet Theory[J].Non-Ferrous Mining and Metallurgy,2010,26(5):7-9. |
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| Authors: | SUN Wei YANG Yi LI Hong-chang GU Cheng MA Qiu YONG Wei-xun FEI Zhi-wen |
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| Affiliation: | 1.Kunming Prospecting Design Institute of China Nonferrous Metals Industry,Kunming 650051,China;2.Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | Blasting vibration signals is a very complex non-stationary signal,with the characters of short duration and abrupt change.The different frequency bands energy features of blasting vibration signals from blasting engineering were decomposed and analyzed by wavelet packet method in this paper.The results show that most of blasting vibration signal energy concentrated in the frequency band of 0～200Hz,the frequency band can be divided into many sub-band when the blast conditions changed.With the explosive dose and blasting seismic wave propagation distance increases,the low frequency band energy of blasting vibration signals increase.This method is effective for studying the blasting seismic wave propagation mechanism,specially,for reducing vibration of blasting. |
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| Keywords: | wavelet packet analysis blast vibration energy analysis vibration reduction mining engineering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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