The Circumferential Scan Technology for Pipes Based on Magnetostrictive Ultrasonic Guided Waves
摘 要
超声导波因其单点激励、传播距离远、全截面检测等突出优势,已被大量应用于油气管道的检测中。然而,现有的轴对称超声导波检测方法只可以通过A扫信号对缺陷在管道轴向的位置进行定位,且在大直径管道以及焊接支架、不等径三通等特定部位的检测效果不佳。通过建模和仿真对比了基于局部加载下的周向扫查技术和现有导波检测技术在管道上的应用特点,得出周向扫查技术更适用于大直径管道的中距离检测的结论。最后开展了验证试验,验证了周向扫查技术可通过B扫成像图对管道上的缺陷进行轴向和周向定位,缺陷回波幅值是现有T(0,1)模态导波检测的3倍以上。
Abstract
Ultrasonic guided waves have been widely used in oil and gas pipelines nondestructive evaluation due to its various corresponding advantages, such as single-point excitation, long detection range and 100% cross-sectional detectability. However, the existing ultrasonic guided waves detect technology only can locate the defects in the axis position along the pipe by A-scan signal, and the application effectiveness is not good in large diameter pipes and some specific parts, such as pipe bracket and unequal-diameter three-way piece. This article compares the application characteristic of circumferential scan technology with existing detect technology by modeling and simulation, and has found that the circumferential scan technology is more suitable for middle range of large diameter pipe. Then numerical evaluations and experiments indicate that the defects both in axial and circumferential direction can be located by B-scan imaging by using circumferential scan technology, and the backscattering amplitude of defects is three times larger than that by existing T(0,1) mode detected.
中图分类号 TG115.28 DOI 10.11973/wsjc201812011
所属栏目 超声导波检测技术应用专题
基金项目 “国家重点研发计划”资助项目(2018YFC0809000);国家自然科学基金项目(61271084,51275454);浙江省重大科技专项项目(2017C01042)
收稿日期 2018/9/20
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备注陈会明(1987-),男,工程师,硕士,主要从事超声导波无损检测技术的研究
引用该论文: CHEN Huiming,TANG Zhifeng,LÜ,Fuzai,LUO Sujun,WU Jianjun,LI Shaoxing. The Circumferential Scan Technology for Pipes Based on Magnetostrictive Ultrasonic Guided Waves[J]. Nondestructive Testing, 2018, 40(12): 51~56
陈会明,唐志峰,吕福在,骆苏军,伍建军,李绍星. 基于磁致伸缩超声导波的管道周向扫查技术[J]. 无损检测, 2018, 40(12): 51~56
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参考文献
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【2】高秋华. 油气储运管道建设现状及改善措施[J]. 化工储运, 2016, 16(6):164.
【3】ROSE R L. Ultrasonic guided waves in solid media[M]. Cambridge:Cambridge University Press, 2014.
【4】ROSE R L. A baseline and vision of ultrasonic guided wave inspection potential[J]. Journal of Pressure Vessel Technology, 2002, 124(3):273-282.
【5】ROSE R L. Successes and challenges for ultrasonic testing in NDT and SHM[J]. Materials Evaluation, 2010, 68(5):494-500.
【6】LOWE M J S, ALLEYNE D N, CAWLEY P. Defect detection in pipes using guided waves[J]. Ultrasonics, 1998, 36(1/5):147-154.
【7】CAWLEY P, LOWE M J S, ALLEYNE D N, et al. Practical long range guided wave testing:Applications to pipes and rail[J]. Materials Evaluation, 2003, 61(1):66-74.
【8】LEINOV E, CAWLEY P, LOWE M J S. Investigation of guided waves propagation in pipe buried in sand[J]. AIP Conference Proceeding, 2014, 1581(1):271-278.
【9】JOHN J D, JOSEPH L R. Excitation of guided wave modes in hollow cylinders by applied surface tractions[J]. Journal of Applied Physics, 1992, 72(7):2589-2597.
【10】LIU Y, KHAJEH E, LISSENDEN C J, et al. Interaction of torsional and longitudinal guided waves in weakly nonlinear circular cylinders[J]. Journal of the Acoustical Society of America, 2013, 133(5):2541-2553.
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