Early contact fatigue evaluation of gear using eddy current pulsed thermography

Liu, Jia; Ren, Zhifeng; Tian, Gui Yun; Gao, Bin; Meng, Jin; Wang, Yizhe

doi:10.1109/fendt.2014.6928264

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…In the ECPT experiment, the transient thermal response of ECPT contains rich information on the crack characteristics. Previous work has well studied the features for cracks defection and characterization from the pixel level features [13], local area features [14] to the pattern level features such as Principal Component Analysis (PCA) and Independent Component Analysis (ICA) [15]. These works provide qualitative evaluation of the characteristics of the defect.…”

Section: Introductionmentioning

confidence: 99%

Tomographic Reconstruction of Rolling Contact Fatigues in Rails Using 3D Eddy Current Pulsed Thermography

et al. 2021

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The detection and quantification of the rolling contact fatigue (RCF) in rail tracks are essential for rail safety and condition-based maintenance. The tomographic reconstruction of the rolling contact fatigue is challenging work. The x-ray is unable to do in-situ inspection effectively. This paper proposes a new approach for RCF construction using 3D eddy current pulsed thermography. A differential time-square-root (sqrt) of temperature drop (DTSTD) is proposed as a mean to construct the sectional images and to reconstruct the thermal tomography image. The proposed method is validated through artificial angular crack slots as well as natural RCF crack. The thermal tomographic reconstruction is compared with the x-ray computed tomography on a rail track head cut-off with RCF cracks.

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Section: Introductionmentioning

confidence: 99%