Abstract
As train operating speeds increase, upgrading the performance of the railway vehicle has been required. To improve the ride comfort related to vibration, researches to replace the conventional passive suspension with (semi)active suspension have been carried out. For the purpose of vibration reduction, the magneto-rheological (MR) damper has been widely applied in automobile or anti-vibration areas, but it hasn’t yet been applied to railway vehicles. In this study, skyhook control with the MR damper was applied to the 1/5 scaled railway vehicle model on roller rig to suppress the lateral vibration of the carbody. For the 1/5 scaled prototype model of the railway vehicle, the dimensions of railway vehicle were scaled down by similarity method. Both numerical analysis and experiments to control the carbody lateral vibration were conducted and compared. The possibility of improving both the ride comfort and running stability of the railway vehicle by using the semi-active control was discussed in detail.
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Recommended by Editor Yeon June Kang
Yu-Jeong Shin received her B.S. in Physics, Cheong-ju University, Korea, in 2001. She then received her M.S. in Electricity and Electronic Engineering from Sung-kyunkwan University in 2003. She is currently in the Ph.D. program in the Department of Railway System Engineering at the University of Science and Technology. Her research interests include railway vehicle dynamics and control.
Won-Hee You received his B.S. in Mechanical Engineering from Yonsei University, Korea, in 1981. He then received his M.S. and Ph.D. from Yonsei University in 1984 and 1993, respectively. Dr. You is currently an executive researcher in Korea Railroad Research Institute. His research interests include railway vehicle dynamics and control, noise and vibration.
Hyun-Moo Hur received his B.S. and M. S. in Mechanical Engineering from Yonsei University, Korea, in 1988 and 1990, and the Ph.D from Ajou University, Suwon, Korea in 2009, respectively. He is currently a principal researcher in Korea Railroad Research Institute in Korea. His research interests include railway vehicle dynamics and wheel/rail interface.
Joon-Hyuk Park received the B.S. degree from KAIST, Daejeon, Korea in 1998, and the M.S. and Ph.D from Yonsei University, Seoul, Korea in 2000, 2005, respectively, all in Mechanical Engineering. He is a senior researcher at the Korea Railroad Research Institute. His research interests are related to an active steering bogie system and running test and evaluation technology for railway vehicles.
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Shin, YJ., You, WH., Hur, HM. et al. Semi-active control to reduce carbody vibration of railway vehicle by using scaled roller rig. J Mech Sci Technol 26, 3423–3431 (2012). https://doi.org/10.1007/s12206-012-0861-1
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DOI: https://doi.org/10.1007/s12206-012-0861-1