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高频纵向导波在钢杆中传播特性的研究 被引量:19

PROPAGATION CHARACTERISTICS OF HIGH FREQUENCY LONGITUDINAL GUIDED WAVES IN STEEL ROD
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摘要 计算了钢杆中纵向轴对称导波模态的衰减频散曲线和群速度频散曲线.分析了1~3MHz范围内高频纵向轴对称超声导波在钢杆中的传播特性.理论分析表明,各高阶纵向模态都存在一个衰减最小值,在此衰减最小值所对应频率下的高阶模态能传播较远距离,可用于钢杆导波检测.建立实验系统,采用轴对称同端激励接收的方法,根据第1次端面回波做出群速度和端面回波幅值随频率变化曲线,实验结果与理论分析基本吻合.表明考虑材料衰减特性的钢杆频散曲线可以作为实验指导依据. The attenuation dispersion curve and group velocity dispersion curve of ultrasonic guided waves in steel rod are calculated with consideration of the attenuation. Propagation characteristics of high frequency longitudinal modes between 1 MHz3 MHz in steel rod are studied. In theory, there is one attenuation minimum in every high order longitudinal mode whose attenuation is the smallest in all modes at the special high frequency. The high order mode at this special frequency can propagate a longer distance than other modes at the same frequency. This indicates that high frequency low attenuation longitudinal mode at this special high frequency can be used for the inspection of steel rod. The experiments on steel rod of 22 mm in diameter, 2 m in length are carried out using ultrasonic guided wave. Guided wave signals are excited and received by the same probe at the same end of the rod. The group velocity and amplitude curves of first end reflection against frequency are obtained. The experimental curves are consistent with those dispersion curves of theory. This indicates that the dispersion curve of steel rod with consideration of attenuation characteristics can be a guidance to experiment.
出处 《力学学报》 EI CSCD 北大核心 2007年第4期538-544,共7页 Chinese Journal of Theoretical and Applied Mechanics
基金 北京市教委资助项目(KZ200510005004) 北京市自然科学基金(4052008 8062008).~~
关键词 高频 超声导波 检测 衰减 rod, high frequency, ultrasonic guided waves, inspection, attenuation
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参考文献14

  • 1Leif Kari.Axially symmetric modes in finite cylinders-the wave guide solution.Wave Motion,2003,37:191-206
  • 2Viens M.Leaky torsional acoustic modes in infinite clad rods.J Acoust Soc Am,1994,95(2):701-707
  • 3吴斌,李隆涛,王秀彦,于海群,李涌,何存富.基于超声导波技术对钢杆表面缺陷的无损检测研究[J].工程力学,2003,20(5):149-154. 被引量:30
  • 4Pavlakovic BN,Lowe MJS,Cawly P.High-frequency lowloss ultrasonic modes in imbedded Bars.Journal of Applied Mechanics,2001,68:67-75
  • 5Beard MD,Lowe MJS,Cawley P.Development of a guided wave inspection technique for rockbolts.Review of Progress in Quantitative NDE,2002.21:1318-1325
  • 6Beard MD.Guided wave inspection of embedded cylindrical structures.[Ph D Thesis].London:Imperial College,2002
  • 7Bernard A,Lowe MJS.Guided waves energy velocity in absorbing and non-absorbing plaetes.J Acoust soc Am,2001,110(1):186-196
  • 8Lowe M.Plate waves for the NDT of diffusion bonded titanium.[Ph D Thesis].London:Imperial College,1993
  • 9Rose JL 著.何存富,吴斌,王秀彦译.固体中的超声波.北京:科学出版社,2004
  • 10刘增华,吴斌,何存富,王秀彦.超声导波扭转模态在粘弹性包覆层管道中传播特性研究[J].应用基础与工程科学学报,2005,13(3):291-299. 被引量:19

二级参考文献28

  • 1[1]Rose J L. Recent advances in guided wave NDE. IEEE Ultrasonics Symposium, 1995:761~770
  • 2[2]Alleyne D N, Cawley P. A two-dimensional Fourier transform method for the measurement of propagating multimode signals. J. Acoust. Soc. Am., 1991, 89(3):1 159~1 168
  • 3[3]Alleyne D N, Cawley P. Optimization of Lamb wave inspection techniques. NDT&E International, 1992, 25(1):11~22
  • 4[4]Lowe M J S, Alleyne D N, Cawley P. Defect detection in pipes using guided waves. Ultrasonics, 1998, 36(2):147~154
  • 5[5]Rose J L, Ditri J J, Pilarski A, et al. A guided wave inspection technique for nuclear steam generator tubing. NDT & E International, 1994, 27(6):307~310
  • 6[6]Gazis D C. Three dimensional investigation of the propagation of waves in hollow circular cylinders. Analytical Foundation. J. of the Acoustics Society of America, 1959, 31(5):568~573
  • 7[7]Alleyne D N, Cawley P. The excitation of lamb waves in pipes using dry coupled piezoelectric transducer. Journal of Nondestructive Evaluation, 1996, 15(1):11~20
  • 8Lowe M, Alleyne D, Cawley P. Defect Detection in Pipes Using Guided Waves. Ultrasonics, 1998, 36 :147~154
  • 9Siqueira M, Gatts C, Silva R, et al. The Use of Ultrasonic Guided Waves and Wavelets Analysis in Pipe Inspection. Ultrasonics, 2004,41 (10) : 785 ~797
  • 10Kwun H, Kim S Y, Choi M S, et al. Torsional Guided-wave Attenuation in Coal-tar-enamelcoated, Buried Piping. NDT&E International,2004,37(8) : 663~665

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