3-D nonlinear analysis of effect of air gap between yoke and steel in alternating flux leakage testing

被引:0
|
作者
Gotoh, Y
Takahashi, N
机构
[1] Chugoku Polytech Coll, Kurashiki, Okayama 7100251, Japan
[2] Okayama Univ, Okayama 7008530, Japan
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D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The alternating magnetic flux leakage testing has been applied in the inspection process for detecting cracks on the surface of steel. This testing detects the leakage flux from the cracks in ferromagnetic material magnetized by the ac electromagnet. The signal is affected by the construction of the equipment In this paper, the effect of the air gap between the yoke, and the steel plate on the leakage flux and the phase angle between the flux of 8 search coil and the exciting current are investigated using 3-D alternating nonlinear edge-based hexahedral finite element method.
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页码:1085 / 1088
页数:4
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