| 空心抽油杆的超声导波检测 |
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| 引用本文： | 何存富,李颖,吴斌,李隆涛,王秀彦.空心抽油杆的超声导波检测[J].无损检测,2005,27(10):538-541. |
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| 作者姓名： | 何存富 李颖 吴斌 李隆涛 王秀彦 |
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| 作者单位： | 北京工业大学,机电学院,北京,100022 |
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| 基金项目： | 国家自然科学基金资助项目(19972003,10272007)，北京市自然科学基金重点资助项目(3011001)，北京市优秀人才培养专项经费资助项目 |
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| 摘 要： | 利用超声纵向导波对抽油杆缺陷进行检测。将空心抽油杆简化为一管状波导,利用管道中的导波频散曲线,并结合抽油杆的缺陷检测要求,设计出适合抽油杆缺陷检测的传感器,选择合适的导波模态对抽油杆表面上宽1 mm、深1 mm的周向槽进行检测,试验结果表明将抽油杆简化为管状波导是可行的,利用设计的环状传感器激发出纵向轴对称L(0,2)导波模态,有效检出了抽油杆表面的缺陷。
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| 关 键 词： | 超声检测 导波 抽油杆 纵向模态 频散曲线 传感器 |
| 文章编号： | 1000-6656（2005）10-0538-04 |
| 收稿时间： | 2004-07-12 |
| 修稿时间： | 2004年7月12日 |
Ultrasonic Inspection of Hollow Sucker Rod by Guided Waves |
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| HE Cun-fu,LI Ying,WU Bin,LI Long-tao,WANG Xiu-yan.Ultrasonic Inspection of Hollow Sucker Rod by Guided Waves[J].Nondestructive Testing,2005,27(10):538-541. |
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| Authors: | HE Cun-fu LI Ying WU Bin LI Long-tao WANG Xiu-yan |
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| Affiliation: | Beijing University of Technology, Beijing 100022, China |
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| Abstract: | The defect in a hollow sucker rod were detected by longitudinal guided waves.A hollow sucker rod was simplified to be a cannular wave-guide. Meanwhile,a transducer which was suitable for detecting the defect in a sucker rod was designed according to the disperse curves of the guided waves in a pipe and the requirements of detecting the defect in a sucker rod.Then a circumferential notch with 1mm width and 1mm depth was detected by suitable guided wave mode.It was shown by experiment that the method was feasible.The defect in a sucker rod was effectively detected with the axisymmetrical longitudinall mode L(0,2) generated by the transducer designed. |
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| Keywords: | Ultrasonic testing Guided wave Sucker rod Longitudinal mode Disperse curve Transducer |
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