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

fYear

2008

fDate

25-27 June 2008

Firstpage

2595

Lastpage

2598

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WCICA.2008.4593331

Filename

4593331