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http://dx.doi.org/10.7782/JKSR.2012.15.5.423

Impact Test for Measurement of the Carbody Bending Modes of Railway Vehicle  

Shin, Bum-Sik (Department of Mechanical Engineering, Sungkyungkwan University)
Choi, Yeon-Sun (Department of Mechanical Engineering, Sungkyungkwan University)
Publication Information
Journal of the Korean Society for Railway / v.15, no.5, 2012 , pp. 423-428 More about this Journal
Abstract
As the speed of high speed train increases, the prediction of ride comfort becomes important. The exciting frequencies due to rail irregularity in high-speed train closes to the second and third natural frequencies of the carbody. The dynamic characteristics of railway vehicles should be checked by modal analysis numerically and experimentally. In this study the bending test for railway vehicle is reviewed and the impact test is suggested to find the natural frequencies and the mode shapes of the carbody. The validity of the impact test is checked with the test for a sample plate which reflects the aspect ratio of the original carbody. The bending test by the impact and the displacement methods of JIS E7105 for a prototype carbody were done in the field and compared. The results show that the impact test can find more accurate natural frequencies and the mode shapes of the carbody than those of the displacement method.
Keywords
Railway vehicle; Bending mode; Impact test; Static deflection method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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