[1]陈作彬①,李兴华②,范磊②,等.基于小波包变换的爆破地震反应谱分析[J].爆破器材,2018,47(05):59-64.[doi:10.3969/j.issn.1001-8352.2018.05.011]
　CHEN Zuobin,LI Xinghua,FAN Lei,et al.Analysis of Blasting Seismic Response Spectrum Based on Wavelet Packet Transform[J].EXPLOSIVE MATERIALS,2018,47(05):59-64.[doi:10.3969/j.issn.1001-8352.2018.05.011]
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基于小波包变换的爆破地震反应谱分析()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
47
期数:
2018年05
页码:
59-64
栏目:
爆破技术
出版日期:
2018-09-27

文章信息/Info

Title:
Analysis of Blasting Seismic Response Spectrum Based on Wavelet Packet Transform
文章编号:
5265
作者:
陈作彬①; 李兴华②; 范磊②; 孙飞①
①核工业南京建设集团有限公司（江苏南京, 21003）
②解放军陆军工程大学(江苏南京, 210007)
Author(s):
CHEN Zuobin①;  LI Xinghua②;  FAN Lei②;  SUN Fei①
① Nuclear Industry Nanjing Construction Group Co., Ltd. (Jiangsu Nanjing, 210003)
② Army Engineering University of PLA (Jiangsu Nanjing, 210007)
关键词:
爆破振动; 小波包分析; 地震反应谱; 动态响应
Keywords:
blasting vibration;  wavelet packet analysis;  seismic response spectrum;  dynamic response
分类号:
O382; TD235.1
DOI:
10.3969/j.issn.1001-8352.2018.05.011
文献标志码:
A
摘要:
爆破地震反应谱理论能够反映爆破振动作用下结构体的动态响应。选取某项目模型试验测试得到的爆破振动加速度信号为研究对象，采用小波包分析方法将振动信号进行分解和重构，得到爆破振动信号的频谱、时频和能量特性。结合反应谱理论得到各节点小波包重构系数的反应谱曲线，反应谱曲线峰值对应的频率与该节点重构小波包系数主频基本一致。当节点频率增大时，反应谱曲线峰值有增大的趋势，且峰值上升和下降部分由缓变陡。将小波包分析方法和地震反应谱理论结合起来，能够得到爆破振动的精细反应谱，为抗爆破振动设计提供了一种新思路。
Abstract:
Blasting seismic response spectrum theory can reflect the dynamic response of structures under blasting vibration. The blast vibration acceleration signal obtained from the test of a certain project model was selected as the research object. The wavelet packet analysis method was used to decompose and reconstruct the vibration signal, and the spectrum, time-frequency and energy characteristics of the blasting vibration signal were obtained. The response spectrum curve of each nodes wavelet packet reconstruction coefficient was obtained via applying for the response spectrum theory. The frequency corresponding to the peak of the response spectrum curve was basically consistent with the primary frequency of the reconstructed wavelet packet coefficient. When the node frequency increased, the peak value of the response spectrum curve increased. The peak rising and falling parts gradually become steeper. Combining the wavelet packet analysis method with the seismic response spectrum theory, the fine response spectrum of blasting vibration can be obtained, which provides a new idea for anti-blasting vibration design.

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备注/Memo

备注/Memo:
收稿日期：2018-05-09
基金项目：国家自然科学基金（51608530）
作者简介：陈作彬（1973－），男，高工，从事岩土爆破工程施工与技术管理工作。E-mail：690841265@qq.com
通信作者：李兴华（1985－），男，讲师，从事爆炸力学相关研究。E-mail：379523589@qq.com
更新日期/Last Update: 2018-09-27