钻杆漏磁检测励磁装置3D磁场的仿真模拟

详细信息

The 3D Magnetic Field of Excitation Unit of Drill Pipe MFL Testing Based on Analog Simulation

摘要: 漏磁检测技术被认为是一种高效率的无损检测方法, 已被广泛应用于油田钻杆的检测中。利用ANSYS软件建立完整的励磁装置组合3D模型, 通过分析计算实现钻杆在完整励磁装置组合下的磁场展示, 可以代替物理实体试验,极大地提高了分析效率,减少了分析成本,达到了预期的要求, 为钻杆励磁装置及钻杆的漏磁检测提供了理论依据。
- 钻杆 /
- 漏磁检测 /
- 励磁装置 /
- 有限元分析
Abstract: Magnetic flux leakage is one type of electromagnetic nondestructive testing (NDT) which is widely utilized in the testing the integrity of drill pipe in the field. In this paper, the 3D model of excitation unit is completely built and analyzed by ANSYS software. The magnetic field of drill pipe in the combination of full excitation device is shown by ANSYS software instead of the physic experiments which increases the efficiency tremendously and decreases the cost and achieves the anticipated desire. It is considered that this technique can provide the theoretical basis of drill pipe excitation device and the magnetic flux leakage testing of drill pipe.
- Drill pipe /
- Magnetic flux leakage testing /
- Excitation unit /
- Finite element analysis (FEA)

[1]	MA Yi-lai, HE Ren-yang, CHEN Jin-zhong,et al. A method for improving SNR of drill pipe leakage flux testing signals by means of magnetic concentrating effect［J］. IEEE Transactions on Magnetics,2015,51(9):489-492.
[2]	林立,谢新安,刘建华. 钻机井口钻杆漏磁检测器机械系统:中国, ZL201010225759.1［P］. 2012-05-23.
[3]	马义来,林立,蒋开文,等. 利用磁屏蔽效应改善钻杆漏磁检测信号信噪比［J］. 无损检测,2013,35(3):9-11.
[4]	任吉林,林俊明,高春法.电磁检测［M］.北京:机械工业出版社,2000.
[5]	LI Y, WILSON J,TIAN G Y. Experiment and simulation study of 3D magnetic field sensing for magnetic flux leakage defect characterization［J］. NDT & E Int, 2007,40(3):179-184.
[6]	Al-NAEMI F I, HALL J P,MOSES A J.FEM modelling techniques of magnetic flux leakage-type NDT for ferromagnetic plate inspections［J］. J. Magn. Magn. Mater, 2006, 304(2):790-793.
[7]	汪友生,张延华.漏磁信号的有限元分析与仿真［J］.计算机仿真,2005,22 (7):185-189.