爆破地震波时频域分析方法及应用
|
摘要
为了研究各时频域分析方法对爆破振动信号时频特征提取的有效性,设计了仿真试验并对不同时频域分析方法进行了对比分析,验证了自适应最优核分布在最大程度抑制交叉项的同时具有较高的时频分辨能力和分辨精度,是适合爆破振动信号时频分析的最佳方法。应用此方法对实测的单段和多段爆破振动信号进行时频分析,结果表明:多段爆破振动信号出现多个能量峰值,并且峰值能量增大、持续时间延长是振动信号叠加的结果。此方法可从信号能量大小和持续时间的角度对爆破振动信号时频特性进行详细解读,为爆破地震效应的深入研究提供实用的分析技术。
In order to study the effectiveness of time-frequency domain analytical method to time-frequency feature extraction of blasting vibration signals,simulation experiments are designed and different time-frequency domain analysis methods are analyzed,identifying that AOK distribution is a optimal method to the time-frequency analysis of blasting vibration signals,which can fully suppress the cross term and has high time-frequency resolving power and resolving accuracy.Applying it to the time-frequency analysis of single and multistage blasting vibration signals,the results show that multistage blast vibration signals appear several energy peaks,the increased energy and lengthened duration are caused by superposition of vibration signal.This method makes detailed interpretation on blasting vibration signals of time-frequency properties from the standpoint of energy size and duration.Our results are of importance for enriching mechanism of waveforms interference for vibration reduction.
In order to study the effectiveness of time-frequency domain analytical method to time-frequency feature extraction of blasting vibration signals,simulation experiments are designed and different time-frequency domain analysis methods are analyzed,identifying that AOK distribution is a optimal method to the time-frequency analysis of blasting vibration signals,which can fully suppress the cross term and has high time-frequency resolving power and resolving accuracy.Applying it to the time-frequency analysis of single and multistage blasting vibration signals,the results show that multistage blast vibration signals appear several energy peaks,the increased energy and lengthened duration are caused by superposition of vibration signal.This method makes detailed interpretation on blasting vibration signals of time-frequency properties from the standpoint of energy size and duration.Our results are of importance for enriching mechanism of waveforms interference for vibration reduction.
引文
[1]罗忆,卢文波,陈明,等.爆破振动安全判据研究综述[J].爆破,2010,27(1):14-22.LUO Yi,LU Wenbo,CHEN Ming,et al.Viewof research on safety criterion of blasting vibration[J].Blasting,2010,27(1):14-22.
[2]马瑞恒,时党勇.爆破振动信号的时频分析[J].振动与冲击,2005,24(4):92-96.MA Ruiheng,SHI Dangyong.Ti me-frequency analysis of blasting vibration signal[J].Journal of Vibration and Shock,2005,24(4):92-96.
[3]史秀志,田建军,王怀勇.冬瓜山矿爆破振动测试数据回归与时频分析[J].爆破,2008,25(2):77-80.SHI Xiuzhi,TIANJianjun,WANG Huaiyong.Blasting vibration measurementregression analysis and ti me-frequency analy-sis in Dongguahill mine[J].Blasting,2008,25(2):77-80.
[4]宋光明,曾新吾,陈寿如,等.基于波形预测小波包分析模型的降振微差时间选择[J].爆炸与冲击,2003,23(2):163-168.SONG Gangming,ZENG Xinwu,CHENG Shouru,et al.The selection of millisecond delayinterval of blasting for decreasingground vibration based on the wavelet packets prediction model of waveforms[J].Explosion and Shock Waves,2003,23(2):163-168.
[5]李洪涛,卢文波,舒大强.隧洞开挖爆破地震反应谱特征研究[J].爆炸与冲击,2008,28(4):331-334.LI Hongtao,LU Wenbo,SHU Daqiang.Response spectrumof blasting vibrationindueed by tunnel excavation[J].Explosionand Shock Waves,2008,28(4):331-334.
[6]樊剑,吕超,张辉.地震波时频特征及与结构地震响应的关系[J].工程力学,2010,27(6):98-106.FANJian,LU Chao,ZHANG Hui.Relation between ti me-frequency characteristic of earthquake ground motions and struc-tural earthquake responses[J].Engineering Mechanics,2010,27(6):98-106.
[7]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.ZHAO Mingsheng,LIANG Kaishui,CAO Yue,et al.Discussion on the security criteria of construction(structure)of buil-ding under blasting vibration[J].Blasting,2008,25(4):24-27.
[8]徐红梅,郝志勇,贾维新,等.基于S变换的内燃机气缸盖振动特性研究[J].内燃机工程,2008,29(3):68-72.XU Hongmei,HAO Zhiyong,JIA Weixin,et al.Study on vibration characteristics of internal combustion engine cylinderhead based on S transform[J].Chinese Internal Combustion Engine Engineering,2008,29(3):68-72.
[9]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.LI U Xi wu,ZHANG Ning,GOU Yongfeng,et al.The comparison and application of ti me-frequency analysis methods to seis-mic signal[J].Progress in Geophysics,2008,23(3):743-753.
[10]任祖华.基于窗函数的FFT谐波参数估计算法[J].电测与仪表,2010,47(5):8-12.REN Zuhua.The harmonic parameter esti mation algorithmbased onthe FFT windowfunctions[J].Electrical Measurement&Instrumentation,2010,47(5):8-12.
[11]王晓凯,高静怀,何洋洋.基于时频自适应最优核的时频分析方法[J].系统工程与电子技术,2010,32(1):22-26.WANG Xiaokai,GAO Jinghuai,HE Yangyang.Ti me-frequency analysis based on ti me-frequency-adaptive opti mal-kernel[J].Systems Engineering and Electronics,2010,32(1):22-26.
[12]张子瑜,陈进,史习智,等.径向高斯核函数时频分布及在故障诊断中的应用[J].振动工程学报,2001,14(1):53-59.ZHANG Ziyu,CHENJin,SHI Xizhi,et al.Radial Gaussian kernel ti me-frequency distribution and its application to ma-chine fault diagnosis[J].Journal of Vibration Engineering,2001,14(1):53-59.
[2]马瑞恒,时党勇.爆破振动信号的时频分析[J].振动与冲击,2005,24(4):92-96.MA Ruiheng,SHI Dangyong.Ti me-frequency analysis of blasting vibration signal[J].Journal of Vibration and Shock,2005,24(4):92-96.
[3]史秀志,田建军,王怀勇.冬瓜山矿爆破振动测试数据回归与时频分析[J].爆破,2008,25(2):77-80.SHI Xiuzhi,TIANJianjun,WANG Huaiyong.Blasting vibration measurementregression analysis and ti me-frequency analy-sis in Dongguahill mine[J].Blasting,2008,25(2):77-80.
[4]宋光明,曾新吾,陈寿如,等.基于波形预测小波包分析模型的降振微差时间选择[J].爆炸与冲击,2003,23(2):163-168.SONG Gangming,ZENG Xinwu,CHENG Shouru,et al.The selection of millisecond delayinterval of blasting for decreasingground vibration based on the wavelet packets prediction model of waveforms[J].Explosion and Shock Waves,2003,23(2):163-168.
[5]李洪涛,卢文波,舒大强.隧洞开挖爆破地震反应谱特征研究[J].爆炸与冲击,2008,28(4):331-334.LI Hongtao,LU Wenbo,SHU Daqiang.Response spectrumof blasting vibrationindueed by tunnel excavation[J].Explosionand Shock Waves,2008,28(4):331-334.
[6]樊剑,吕超,张辉.地震波时频特征及与结构地震响应的关系[J].工程力学,2010,27(6):98-106.FANJian,LU Chao,ZHANG Hui.Relation between ti me-frequency characteristic of earthquake ground motions and struc-tural earthquake responses[J].Engineering Mechanics,2010,27(6):98-106.
[7]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.ZHAO Mingsheng,LIANG Kaishui,CAO Yue,et al.Discussion on the security criteria of construction(structure)of buil-ding under blasting vibration[J].Blasting,2008,25(4):24-27.
[8]徐红梅,郝志勇,贾维新,等.基于S变换的内燃机气缸盖振动特性研究[J].内燃机工程,2008,29(3):68-72.XU Hongmei,HAO Zhiyong,JIA Weixin,et al.Study on vibration characteristics of internal combustion engine cylinderhead based on S transform[J].Chinese Internal Combustion Engine Engineering,2008,29(3):68-72.
[9]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.LI U Xi wu,ZHANG Ning,GOU Yongfeng,et al.The comparison and application of ti me-frequency analysis methods to seis-mic signal[J].Progress in Geophysics,2008,23(3):743-753.
[10]任祖华.基于窗函数的FFT谐波参数估计算法[J].电测与仪表,2010,47(5):8-12.REN Zuhua.The harmonic parameter esti mation algorithmbased onthe FFT windowfunctions[J].Electrical Measurement&Instrumentation,2010,47(5):8-12.
[11]王晓凯,高静怀,何洋洋.基于时频自适应最优核的时频分析方法[J].系统工程与电子技术,2010,32(1):22-26.WANG Xiaokai,GAO Jinghuai,HE Yangyang.Ti me-frequency analysis based on ti me-frequency-adaptive opti mal-kernel[J].Systems Engineering and Electronics,2010,32(1):22-26.
[12]张子瑜,陈进,史习智,等.径向高斯核函数时频分布及在故障诊断中的应用[J].振动工程学报,2001,14(1):53-59.ZHANG Ziyu,CHENJin,SHI Xizhi,et al.Radial Gaussian kernel ti me-frequency distribution and its application to ma-chine fault diagnosis[J].Journal of Vibration Engineering,2001,14(1):53-59.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心