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Research Progress in Structural Health Monitoring of Axle Box Bearings in Highspeed Train

J.-Y. LIANG, H.-T. LI, L. MA


Bearing in axle box is one of the key rotation components in the high-speed train. Extraction of bearing vibration characteristics, state assessment and health monitoring the internal bearing structure are the development directions of bearing state health monitoring technology in high-speed train. Due to limitation of resonance demodulation method, a classical method of bearing health diagnosis, a new self-adaptive demodulation method is proposed, and the validity of the new method is verified by bearing vibration bench test.

doi: 10.12783/SHM2015/264

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