| 基于磁致伸缩效应的钢管导波检测可行性 |
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| 引用本文： | 柯岩,武新军,康宜华,程顺峰.基于磁致伸缩效应的钢管导波检测可行性[J].无损检测,2007,29(3):113-116. |
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| 作者姓名： | 柯岩 武新军 康宜华 程顺峰 |
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| 作者单位： | 华中科技大学,机械学院,湖北省现代制造质量工程重点实验室,武汉,430074 |
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| 基金项目： | 湖北省现代制造质量工程重点实验室基金 |
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| 摘 要： | 在论述钢管磁致伸缩导波检测原理的基础上，研制了相关实验装置。分析了轴对称布置的线圈和偏置磁场在低频激励时产生的波模式。使用L（0，2）模式对两种人工缺陷进行检测，得到直径〉3．5mm的通孔和深度〉1．5mm的横向刻槽的缺陷反射信号。结果表明磁致伸缩导波用于钢管无损检测是可行的。
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| 关 键 词： | 磁致伸缩效应 导波检测 钢管 通孔 横向刻槽 |
| 文章编号： | 1000-6656（2007）03-0113-04 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006-04-12 |
Feasibility of Detecting Defects in Steel Pipe Using Guided Waves Based on Magnetostrictive Effect |
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| KE Yan,WU Xin-jun,KANG Yi-hua,CHENG Shun-feng.Feasibility of Detecting Defects in Steel Pipe Using Guided Waves Based on Magnetostrictive Effect[J].Nondestructive Testing,2007,29(3):113-116. |
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| Authors: | KE Yan WU Xin-jun KANG Yi-hua CHENG Shun-feng |
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| Affiliation: | Hubei Provincial Key Laboratory of Modem Manufacture Quality Engineering, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | The principles of testing steel tubes by guided waves based on magnetostrictive effect were introduced.An prototype of experimental system was developed.The modes resulted with stimulating in low frequency range and the axisymmetrical configuration of coils and bias magnetic fields were analyzed.Two types of defects of different sizes were tested using L(0,2)mode.The reflected signal from defects could be identified for through-wall holes of 3.5ram in diameter and above,and notches of 1.5mm in depth and above.The experimental results showed the feasibility of magnetostrictive guided waves in steel tubes testing. |
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| Keywords: | Magnetostrictive effect Guided waves Steel tubes Through-wall hole Transverse notch |
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