1. Influence of Metro Track Irregularities on Pantograph Vibration and Its Interaction with Catenary.
- Author
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An, Bolun, Wang, Pu, Ma, Shuai, Ma, Zhuoran, Zhong, Yanglong, and Zhao, Wenqiang
- Subjects
CATENARY ,PANTOGRAPH ,NUMERICAL calculations ,NUMERICAL analysis - Abstract
The problem of excessive wear of pantograph strips frequently occurs on China's Z City Metro Line 1. After on-site investigation and analysis by the metro operating company, it was speculated that the problem was related to abnormal track irregularities. Therefore, taking Z City Metro Line 1 as the main research object, the measured track irregularity of the whole line was analyzed and compared with other typical track spectra, and a track-vehicle-pantograph-catenary coupling dynamics model was established to analyze the relationship between the pantograph-catenary dynamic characteristics and the track irregularity. The two frequency ranges of the track irregularity that have a significant impact on the pantograph-catenary contact were found. Finally, after numerical calculation and analysis, it is recommended to focus on the irregularities with the two wavelength ranges of 9~16 m and 3~4 m in the maintenance. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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