Magnetic flux leakage modeling for mechanical damage in transmission pipelines

被引：51

作者：

Ivanov, PA ^{[1
]}

Zhang, Z ^{[1
]}

Yeoh, CH ^{[1
]}

Udpa, L ^{[1
]}

Sun, Y ^{[1
]}

Udpa, SS ^{[1
]}

Lord, W ^{[1
]}

机构：

[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50010 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 05期

关键词：

magnetic flux leakage; mechanical damage; stress;

D O I：

10.1109/20.717706

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

This paper presents a two stage FE model for prediction of magnetic flux leakage, resulting from mechanical damage, In the first stage the stress distribution associated with mechanical damage is obtained from a structural model. In the second stage the stress distribution is incorporated into a magnetic FE model, by mapping stress levels to permeability. MFL signals are calculated and compared with experimental gouge MFL signatures.

引用

页码：3020 / 3023

页数：4