期刊
TRIBOLOGY INTERNATIONAL
卷 61, 期 -, 页码 88-94出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2012.11.020
关键词
Wear; Contact strip; Contact wire; Electrical current
资金
- National Science and Technology Support Program of China [2009BAG12A01-D06-1]
- National Natural Science Foundation of China [U1234202]
- Science and Technology Support Program of Sichuan Province of China [2011FZ0052]
A series of tests on arc discharge were carried out to better understand the wear mechanism of a contact strip rubbing against a contact wire with electrical current. The arc discharge process was recorded with a high-speed camera. The arc voltage drop and electric current were measured throughout the test. The accumulated arc discharge energy was evaluated. Experimental results show that the wear rate of the contact strip is approximately directly proportional to the accumulated arc discharge energy in logarithmic coordinates. Increasing the normal force can suppress arc discharge and decrease wear of the contact strip. (C) 2012 Elsevier Ltd. All rights reserved.
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