Finite Element Analysis of an Induced Current Potential Drop Method for the Defect Detection of Railway Axles |
| Journal |
Key Engineering Materials (Volumes 321 - 323) |
| Volume |
Advanced Nondestructive Evaluation I |
| Edited by |
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi |
| Pages |
20-23 |
| DOI |
10.4028/www.scientific.net/KEM.321-323.20 |
| Online since |
October, 2006 |
| Authors |
Byeong Chun Goo,
C.H. Lim,
Seok Jin Kwon
|
| Keywords |
Finite Element Analysis (FEA), Induced Current Potential Drop Method, Nondestructive Defect Detection, Railway Axle |
| Abstract |
NDT(Non-Destructive Testing) is useful for the defect detection of rolling stock because
it can be used to detect defects in many invisible parts. In rolling stock one of the components
vulnerable to damage is the axle. Fatigue cracks are initiated in press-fitted parts such as the wheel
and brake disk seats of the axle. Those parts suffer from fretting fatigue damage. A precise and
reliable NDT technique is necessary to detect cracks in the axle. But conventional induced current
potential drop methods (ICPD) have some difficulties to detect such cracks in press-fitted parts of
axles. In this study, we have introduced an induced current focusing potential drop method (ICFPD),
a new concept that can be applied to the press-fitted parts of the axle. And we have measured
electromagnetic properties of the wheelsets and performed finite element analysis for wheelsets
with defects. Results suggest that the method is very powerful and effective to detect defects. |
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