脉冲漏磁检测管道技术的有限元分析
Finite Element Numerical Simulation on Steel Pipe Using Pulsed Magnetic Flux Leakage Testing
摘 要
漏磁检测方法作为一种无损检测技术广泛应用于钢材等的检测。分析了脉冲漏磁检测原理, 提出了脉冲交流磁化方式。采用有限元法对系统参数变化等影响缺陷漏磁场分布因素进行了仿真计算, 分析了提离、缺陷深度及宽度等变化对脉冲漏磁检测结果的影响。结果表明在较大提离情况下, 脉冲漏磁检测方法具有可提取较多检测信息、输出电压幅值高的优点, 在钢管的缺陷检测中将有广阔的应用前景。
有限元仿真
钢管
缺陷
Pulsed magnetic flux leakage testing
Finite element numerical simulation
Steel pipe
Defect
Abstract
Magnetic flux leakage techinique had been widely used for non-intrusively testing of steel products.The principle of pulsed magnetic flux leakage testing(PMFL) was analyzed. A pulsed alternating current magneting method was presented. The finite element numerical simulation had been used to simulate and calculate the effects on various of parameter of the detection system. The influences of changes of lift-off, defect depth and length of the pulsed magnetic field leakage were studied by way of finite element numerical simulation. The results showed that PMFL had the advantage of high signal amplitude and more useful testing information, and this making the method had the broad using foreground in the testing of steel pipe.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 十一五预先研究支持项目(51317030109)
收稿日期 2008/10/21
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备注唐莺(1971-), 女, 副教授, 研究方向为电磁无损检测。
引用该论文: TANG Ying,LUO Fei-Lu,PAN Meng-Chun,CHEN Di-Xiang,HE Yun-Ze. Finite Element Numerical Simulation on Steel Pipe Using Pulsed Magnetic Flux Leakage Testing[J]. Nondestructive Testing, 2009, 31(7): 513～516
唐莺,罗飞路,潘孟春,陈棣湘,何赟泽. 脉冲漏磁检测管道技术的有限元分析[J]. 无损检测, 2009, 31(7): 513～516
被引情况:
【1】费骏骉,左宪章,田贵云,张云,张韬, "浅薄缺陷的脉冲漏磁信号特征量提取",无损检测 34, 2-6(2012)
【2】杨理践,朱明,高松巍, "钢板缺陷的脉冲漏磁检测系统设计及试验",无损检测 34, 73-77(2012)
【3】张韬,左宪章,田贵云,费骏骉, "脉冲漏磁传感器的优化设计与试验验证",无损检测 33, 1-6(2011)
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参考文献
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【3】Tianlu Chen, Gui YunTian, Ali Sophian, et al. Feature extraction and selection for defect classification of pulsed eddy current NDT[J]. NDT & E International, 2008, 41(6): 467-476.
【4】Huang Zuoying, Que Peiwen, Chen Liang. 3D FEM analysis in mengnetic flux leakage method[J]. NDT & E International, 2006, 39(1): 61-66.
【5】唐莺, 郭希玲, 潘孟春, 等.不同参量对缺陷交变漏磁场影响的仿真及验证[J].无损检测, 2008, 30(9): 577-579.
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