Influence of Metro Track Irregularities on Pantograph Vibration and Its Interaction with Catenary
Source abstract
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.
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Research context
OpenAlex topics: Electrical Contact Performance and Analysis · Railway Systems and Energy Efficiency · Railway Engineering and Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
ITS Branch, ZheJiang Communications Investment Group Co., Ltd., Hangzhou 310000, China
Funding
National Key Research and Development Project · National Natural Science Foundation of China · Science and Technology Program of ZheJiang Communications Investment Group Co., Ltd.
References (28)
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