Title :
The research on the relation between magnetic leakage signal character and defect character
Author :
Yang, Lijian ; Zhang, Guoguang ; Gao, Songwei
Author_Institution :
Shenyang Univ. of Technol., Shenyang
Abstract :
In magnetic flux leakage (MFL) testing of pipelines, quantitatively classifying defects remains to be a difficult problem. The mathematical model of MFL field is presented based on the finite element (FE) method, and two-dimensional axisymmetric FE model of MFL testing system is also established by adopting ANSYS software to simulate magnetostatics. The results show that different defects cause different signal. There are certain functions between the defect character and MFL signal character. Defect is quantitatively classified by MFL signal character.
Keywords :
finite element analysis; magnetic flux; magnetic leakage; magnetostatics; materials testing; ANSYS software; MFL testing system; defect character; finite element method; magnetic flux leakage testing; magnetostatics; mathematical model; pipeline; signal character; Automatic testing; Automation; Chemical technology; Electronic mail; Finite element methods; Intelligent control; Magnetic flux leakage; Magnetostatics; Mathematical model; Pipelines; ANSYS; The magnetic flux leakage testing; defect; the finite element; the magnetic leakage signal;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593331
