Influence of inclusions in train wheels and service life prediction

Kaiyu Hu

doi:10.1117/12.3030200

5 June 2024 Influence of inclusions in train wheels and service life prediction

Kaiyu Hu

Proceedings Volume 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024); 131632L (2024) https://doi.org/10.1117/12.3030200
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 2024, Xi'an, China

Abstract

Raising the speed and transporting heavy load standards are effective measures to improve the railway transportation capacity for coal and become the trend of railway development. Wheels as an important component of locomotives, their safety and reliability are also related to the operation of the train and its operational safety. This paper mainly analyzes and calculates the influence of the size of inclusions in the wheel rims of the train and predicts their service life. The mainly reason of cracks in the wheel rim is due to inclusions generated during the wheel molding. During the operation, the inclusions in the wheel rim break under the action of contact stress to form holes, leading to the generation of cracks and the ultimate fracture. The Hertz theory and the Goodier equation are used to calculate the wheel-rail contact stress and the stress concentration factor of inclusions and cavities in the rim, respectively. By using the wheel-rail contact stress and the Murakami formula, the size of inclusions that crack without depth can be calculated and use S-N curve to predict fatigue life.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kaiyu Hu "Influence of inclusions in train wheels and service life prediction", Proc. SPIE 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 131632L (5 June 2024); https://doi.org/10.1117/12.3030200

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