充粘液管材超声导波检测模式及频厚积的选择

项延训; 他得安

充粘液管材超声导波检测模式及频厚积的选择

项延训¹,
他得安²

1.
华东理工大学机械与动力工程学院，上海200237
2.
复旦大学电子工程系，上海200433

详细信息

作者简介:
项延训(1979-)，男，工程师，博士研究生，研究方向为化工机械设备中安全技术及超声检测。

中图分类号: TG115.28
计量
- 文章访问数: 4
- HTML全文浏览量: 0
- PDF下载量: 0
出版历程
- 收稿日期: 2007-10-07
- 刊出日期: 2008-10-09

Optimal Mode and Frequency-Thickness of Guided Waves Testing in Viscous Liquid-Filled Pipes

XIANG Yan-Xun¹,
TA De-An²

摘要

摘要: 对超声纵向导波在充粘性液体管材中的轴向功率流分布进行了计算和分析，结合了系统中导波传播的衰减系数分布曲线，以此确定了用各模式检测管材的最佳频厚积范围以及其适合检测的缺陷位置。分析表明：频厚积在0.07 MHz·mm以下，用L(0,1)模式检测较为理想，检测管内壁缺陷时更为灵敏；在0.09~0.16 MHz·mm之间用L(0,2)模式检测及在0.18~0.28 MHz·mm之间用L(0,3)模式检测时较为理想。轴向功率流分布能有效地选择检测的最佳导波模式及频厚积。
- 超声导波检测 /
- 充粘液管材 /
- 轴向功率流 /
- 衰减系数分布
Abstract: The axial power flow distribution and attenuation coefficient distribution of ultrasonic longitudinal guided waves in viscous liquid-filled pipes were calculated and analyzed. The optimal location, optimal mode and its frequency-thickness products (fd) for the test pipes filled with viscous liquid were chosen according to the axial power flow distribution. The results showed that for NDT of viscous liquid-filled pipes, the optimal frequency-thickness products and testing locations of using each mode were L(0,1) mode under 0.07 MHz·mm for inner walls, and L(0,2) mode in 0.09~0.16 MHz·mm for everywhere, L(0,3) mode in 0.18~0.28 MHz·mm. Axial power flow distribution can be effective in choosing the optimal guided waves and its frequency-thickness products of NDT.
- Ultrasonic guided waves testing /
- Viscous liquid-filled pipes /
- Axial power flow /
- Attenuation coefficient distribution

HTML全文

参考文献(11)

[1]	Pan H, Koyano K, Usui Y. Experimental and numerical investigations of axisymmetric wave propagation in cylindrical pipe filled with fluid[J]. J Acoust Soc Am,2003,113(6):3209-3214.
[2]	Lafleur L D, Shields F D. Low-frequency propagation modes in a liquid-filled elastic tube waveguide[J]. J Acoust Soc Am,1995,97(3):1435-1445.
[3]	Elvira-Segura L. Acoustic wave dispersion in a cylindrical elastic tube filled with a viscous liquid[J]. Ultrasonics,2000,37(8):537-547.
[4]	刘镇清. 圆管中的超声导波[J].无损检测,1999,21(12):560-562.
[5]	Alleyne D N, Lowe M J S, Cawley P. The reflection of guided waves from circumferential notches in pipes[J]. Trans ASME J of Applied Mechanics,1998,65:635-641.
[6]	Alleyne D N, Cawley P, Lank A M, et al. The Lamb wave inspection of chemical plant pipework[C]. Review of Progress in Quantitation NDE. New York: Plenum Press,1997:1269-1276.
[7]	他得安.超声纵向导波在管状结构中的传播特性研究[D].上海：同济大学,2002.
[8]	他得安,刘镇清,贺鹏飞.充粘液管材中超声纵向导波的无损检测参数选择[J].声学学报,2004,29(2):104.
[9]	Auld B A. Acoustic Fields and Waves in Solids: volume 2[M]. Florida: Krieger Publishing Company Malabar,1990
[10]	Aristégui C, Lowe M J S, Cawley P. Guided waves in fluid-filled pipes surrounded by different fluids[J]. Ultrasonics,2001,39(5):367-375.
[11]	Nagy P B, Nayfeh A H. Viscosity-induced attenuation of longitudinal guided waves in fluid-loaded rods[J]. J Acoust Soc Am,1996,100(3):1501-1508.

施引文献

资源附件(0)

计量

文章访问数: 4
HTML全文浏览量: 0
PDF下载量: 0
被引次数: 0

充粘液管材超声导波检测模式及频厚积的选择

作者简介: 项延训(1979-)，男，工程师，博士研究生，研究方向为化工机械设备中安全技术及超声检测。

计量

出版历程

Optimal Mode and Frequency-Thickness of Guided Waves Testing in Viscous Liquid-Filled Pipes

计量

出版历程

目录

作者简介:
项延训(1979-)，男，工程师，博士研究生，研究方向为化工机械设备中安全技术及超声检测。