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http://dx.doi.org/10.7782/JKSR.2017.20.5.577

Running Stability Assessment of a Railway Vehicle using Roller Rig Test  

Park, Joon-Hyuk (High-speed Railroad System Research Center, Korea Railroad Research Institute)
Park, Choon-Soo (High-speed Railroad System Research Center, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society for Railway / v.20, no.5, 2017 , pp. 577-587 More about this Journal
Abstract
In the design process of dynamic characteristics of a railway vehicle, demand for analysis, testing and estimation methods of running stability are increasing as railway vehicle speed is increasing. Critical speed tests and estimation have been carried out using computer simulation or special test facilities, like roller rigs, because real track testing at critical speed is very dangerous. This paper introduces a test and assessment method for critical speed and estimates the validity using several roller rig tests. The test results show that it is difficult to estimate the critical speed using safety and instability assessment method in UIC 518, but that there is good agreement between the reduction of the equivalent damping ratio and the critical speed.
Keywords
Railway vehicle; Stability; Critical speed; Roller rig;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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