• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Asia-Pacific Conference on Shock amp; Impact Loads on Structures; 20031112-14; Changsha, Hunan,(CN) >THE LAWS OF ENERGY DISTRIBUTION FOR BLASTING VIBRATION SIGNALS BASED ON WAVELET PACKAGE DECOMPOSITION
【24h】

THE LAWS OF ENERGY DISTRIBUTION FOR BLASTING VIBRATION SIGNALS BASED ON WAVELET PACKAGE DECOMPOSITION

机译：基于小波包分解的爆破振动信号能量分配规律

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Blasting vibration analysis constitutes the foundation for studying the control of blasting vibration damage and provides the precondition of controlling blasting vibration. Based on the characteristics of short-time non-stationary random signal, this paper investigates the laws of energy distribution for blasting vibration signals in different blasting conditions by means of the wavelet packet analysis technique. In this paper, the characteristics of wavelet transform and wavelet packet analysis are introduced. Then, blasting vibration signals of different blasting conditions are analysed by the wavelet packet analysis technique using MATLAB; energy distribution for different frequency bands is obtained. It is concluded that the energy distribution of blasting vibration signals varies with maximum decking charge, millisecond delay time and distances between explosion and the measuring point. The results have shown that the wavelet packet analysis method is an effective means for studying blasting seismic effect in its entirety, especially for constituting velocity-frequency criteria.
机译：爆破振动分析为研究爆破振动破坏的控制奠定了基础，为控制爆破振动提供了前提。基于短时非平稳随机信号的特点，利用小波包分析技术研究了不同爆破条件下爆破振动信号的能量分布规律。介绍了小波变换和小波包分析的特点。然后，利用MATLAB的小波包分析技术对不同爆破条件下的爆破振动信号进行分析。获得了不同频带的能量分布。结论是，爆破振动信号的能量分布随最大装药量，毫秒延迟时间以及爆炸与测量点之间的距离而变化。结果表明，小波包分析方法是研究整个爆破地震效应的有效手段，特别是构成速度频率准则。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号