Abstract
This paper analyzes the crosswind effect on the uplift of contact line based on the structure of overhead lines and points out that the uplift distribution may tend to be concentrated due to the consistent crosswind effect on the contact line and positioner in the curve segment with small stagger values. According to the contrastive analysis on the uplift of overhead lines in straight and curve segments and testing the uplift and wind velocity of a cross-sea bridge, the mean value of overhead lines uplift between the curve segment and straight segment under the northeastern crosswind effect (wind velocity: 13 m/s) was about 10 mm, the standard deviation was about 5 mm, and the correlation coefficient between the mean value of uplift and standard deviation and the wind velocity was less than −0.6, showing a negative correlation, and being consistent with the theoretical analysis conclusion. Hence, the operator is advised to control the overhead lines parameters dynamically according to the theoretical and data analysis result and the meteorological data.
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This article is supported by key projects (2020YJ066) of China Academy of Railway Sciences Group Co., Ltd.
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Wang, W. et al. (2022). Research on the Crosswind Effect on Uplift of Contact Line of Cross-Sea Bridge. In: Jia, L., Qin, Y., Liang, J., Liu, Z., Diao, L., An, M. (eds) Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021. EITRT 2021. Lecture Notes in Electrical Engineering, vol 864. Springer, Singapore. https://doi.org/10.1007/978-981-16-9905-4_60
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DOI: https://doi.org/10.1007/978-981-16-9905-4_60
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