- 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: | MEI Guiming. Experimental Study on Wear Performance of Rigid Catenary-Pantograph System with Direct Current[J]. Journal of Southwest Jiaotong University, 2021, 56(6): 1305-1310. doi: 10.3969/j.issn.0258-2724.20200432
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In order to understand the abnormal wear mechanism of the contact wire and the pantograph strip in the rigid catenary system, and to improve the service life of its friction elements, tests were carried out on the current-carrying friction and wear performance of the rigid catenary system with a block-on-ring current-carrying friction and wear tester. The test parameters were set as: the test current of 0, 400 A (DC), sliding speed of 60 km/h, the contact normal force of 30 N, and sliding distance of 900 km. During the tests, the sliding friction coefficient between the pantograph strip and catenary wire, the wear volume and the temperature of the pantograph strip, arc current and voltage were measured, and the wear rate of the pantograph strip and arc energy were calculated. The test results show that the tested wear rate of the pantograph strip is close to the one for actual subway lines. The DC current has a serious impact on the wear and temperature of the pantograph strip. The wear rate and temperature of the pantograph strip with DC 400 A are about 53.0 times and 7.4 times higher than those without electric current, respectively. The serious wear of the pantograph strip is mainly caused by arc ablation and adhesive wear.
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