- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | FENG Xiaohang, CHEN Guangxiong, MEI Guiming, DONG Bingjie, ZHAO Pengpeng, LI Xianhang. Frictional Self-Excited Vibration of a Metro Pantograph-Catenary System[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220873
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In order to study the influence of frictional self-excited vibration of a pantograph-catenary system on the contact loss between the carbon strip and contact wire, a finite element model of the pantograph-catenary system at the rigid and flexible transition section of a metro was established based on the theory of frictional self-excited vibration. The complex eigenvalue analysis method was used to study the influence of different pantograph-catenary parameters on the frictional self-excited vibration of the system. The analysis results show that the main frequency of contact line corrugation caused by frictional self-excited vibration of the pantograph-catenary system is 399.61 Hz. When the friction coefficient is greater than or equal to 0.11, the pantograph-catenary system has unstable vibration, and with the increase in the friction coefficient, the unstable vibration tends to be stronger. The normal contact force, the contact position between the carbon strip and the contact wire, and the stiffness of the pantograph bow spring have great influences on the occurrence of the frictional self-excited vibration of the pantograph-catenary system. When the friction coefficient is less than 0.11, selecting the appropriate normal contact force or adjusting the stiffness of the pantograph bow spring can restrain or even eliminate the frictional self-excited vibration of the pantograph-catenary system and then reduce the contact loss caused by the friction between the pantograph and catenary.
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