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http://dx.doi.org/10.7736/KSPE.2013.30.7.694

Analysis on the Vibration Characteristics of Reduction Gear Units for High-speed Trains  

Moon, Kyung Ho (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
Lee, Dong-Hyong (High-speed Railroad Systems Research Center, Korea Railroad Research Institute)
Kim, Jae Chul (High-speed Railroad Systems Research Center, Korea Railroad Research Institute)
Ji, Hae Young (Department of Railway System Engineering, Science & Technology Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.7, 2013 , pp. 694-701 More about this Journal
Abstract
The gear-reduction units of Korean high-speed trains consist of a motor reduction unit, an axle gear box reduction unit, and a tripod joint shaft. A reduction gear unit is a gearbox used to reduce the rotational speed of the input shaft to a slower rotational speed on the output shaft. This reduction in output speed helps to increase torque. Defective reduction gear units in high-speed trains are caused by damage to the gear or by gear fatigue. To diagnose potential problems, it is important to know the vibration characteristics of the reduction gear units. In this study, we analyzed the vibration characteristics of reduction gears under various conditions. The test setup included a full-scale test rig to evaluate reduction gear under both normal and extreme operating conditions.
Keywords
Reduction gear unit; Fault diagnosis; Vibration characteristics; High-speed train;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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