基于HHT的锚杆锚固质量声波无损检测
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摘要
锚杆锚固质量的无损检测工作在锚杆锚固工程中具有十分重要的地位和作用。分别应用FFT和HHT方法对锚杆信号进行了分析,分析结果表明,首先提取首波信号,然后将检测信号作HHT分解,分解后的信号与首波信号作相关,能更好地检测到反射波信号,得到较为准确的锚杆质量参数。
The nondestructive testing work of the bolt's anchoring quality plays an important role in the bolt anchoring engineering.This paper applies the FFT and HHT methods to analyze the bolt signals.The analysis results show that,after extracting the initial wave signals and then HHT decomposing of the detected signals,the decomposed signals can detect the reflected wave signals better thus to obtain more accurate bolt quality parameters by conducting the correlation analysis with initial signals.
The nondestructive testing work of the bolt's anchoring quality plays an important role in the bolt anchoring engineering.This paper applies the FFT and HHT methods to analyze the bolt signals.The analysis results show that,after extracting the initial wave signals and then HHT decomposing of the detected signals,the decomposed signals can detect the reflected wave signals better thus to obtain more accurate bolt quality parameters by conducting the correlation analysis with initial signals.
引文
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[2]仲佑明,秦树人,汤宝平.一种振动信号新变换法的研究[J].振动工程学报,2002,15(2):233-238.ZHONG Youming,QIN Shuren,TANG Baoping.Study on a new transform method for vibration signal[J].Journal of Vibration Engineer-ing,2002,15(2):233-238.
[3]HUANG N E,SHEN Z,LONG S R,et al.The empirical mode decomposition and Hilbert spectrum for nonlinear and non-stationarytime series analysis[J].Proc Roy Soc London A,1998,454:903-909.
[4]KIZHNER S,BLANK K,FLATLEY T,et al.On certain theoretical developments underlying the Hilbert-Huang transform[A].IEEEAerospace Conference Proceedings[C].Piscataway United States:Institute of Electrical and Electronics Engineers Computer Society,2006.167-169.
[5]盖强,张海勇,徐晓刚.Hilbert-Huang变换的自适应频率多分辨分析研究[J].电子学报,2005,33(3):563-566.GAI Qiang,ZHANG Haiyong,XU Xiaogang.Study of adaptive frequency multiresolution analysis of the Hilbert-Huang transform[J].Acta Electronica Sinica,2005,33(3):563-566.
[6]SATISH L,ZAENGL W S.Artificial neural networks for recognition of 3-d partial discharge patterns[J].IEEE Trans on Dielectrics andElectrical Insulation,1994(2):265-275.
[7]罗奇峰,石春香.Hilbert-Huang变换理论及其计算中的问题[J].同济大学学报(自然科学版),2003,31(6):637-640.LUO Qifeng,SHI Chunxiang.Hilbert-Huang transform and several problems in its calculation method[J].Journal of Tongji University(Natural Science Edition),2003,31(6):637-640.
[8]SUN Xiaoyun,LIU Donghui.A new effective method removing measurement noise in eddy current nondestructive detecting[J].Interna-tional Journal of Applied Electromagnetics and Mechanics,2010,33:1 173-1 177.
[9]CHENG Jiulong,SUN Xiaoyun,FENG Li,et al.Experimental study on non-destructive testing of rock bolts based on pseudo-randomsignal[J].Safety Science,2012,50(4):783-786.
[10]杜爱明,王彬,杨润海.Hilbert-Huang变换中的一种端点处理方法[J].地震研究,2007,30(1):54-58.DU Aiming,WANG Bin,YANG Runhai.A boundary-processing method in Hilbert-Huang transform[J].Journal of SeismologicalResearch,2007,30(1):54-58.
[11]TADOLINI S C.Mine roof bolt load determinations utilizing ultrasonic measurement systems[J].CIM Bulletin,1990,83(4):49-54.
[12]IVANOVIC A,NEILSON R D,RODGER A A.Numerical modeling of single tendon ground anchorage systems[J].Geotech Eng,2001,149(2):103-113.
[13]BEARD M D,LOWE M J S.Non-destructive testing of rock bolts using guided ultrasonic waves[J].International Journal of RockMechanics and Mining Sciences,2003,40:527-536.
[14]BEARD M D.Guided Wave Inspection of Embedded Cylindrical Structures[D].London:University of London,2002.
[15]BEARD M D,LOWE M J S,CAWLEY P.Ultrasonic guided waves for inspection of grouted tendons and bolts[J].Journal of Materialsin Civil Engineering,2003,15(3):212-218.
[16]程军圣,于德介,杨宇.基于EMD的信号瞬时特征的小波分析方法[J].地震工程与工程振动,2004,24(2):181-186.CHENG Junsheng,YU Dejie;YANG Yu.Signal instantaneous attribute analysis using wavelet transform based on EMD[J].EarthquakeEngineering and Engineering Vibration,2004,24(2):181-186.
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