Browse > Article
http://dx.doi.org/10.5762/KAIS.2020.21.10.547

Study of the Capsule Train Ride Comfort Improvement by using the Damping Control in Suspension System  

Lee, Jin-Ho (New Transportation Innovative Research Center, Korea Railroad Research Institute)
Lim, Jungyoul (New Transportation Innovative Research Center, Korea Railroad Research Institute)
You, Won-Hee (New Transportation Innovative Research Center, Korea Railroad Research Institute)
Lee, Kwansup (New Transportation Innovative Research Center, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.10, 2020 , pp. 547-557 More about this Journal
Abstract
In this study, damping control devices were applied to the suspension system of a capsule train, and the effects were investigated to improve the ride comfort. The superconductor electrodynamic suspension (SC-EDS) method is used for the capsule train levitation. This method has advantages such as no gap control and a large gap. However, the SC-EDS method has disadvantages such as large gap variation and small damping characteristics against outer vibration, which causes degradation of the ride comfort. In this study, the damping control devices in the primary and secondary suspension were considered to improve the ride comfort in the capsule train. Damping control devices in the primary and secondary suspension can reduce the vibration transmission from outer disturbances to the bogie and from the bogie to the car body, respectively. Simulations for dynamic characteristics analyses were conducted based on the capsule train dynamic model to investigate the effects of the damping control devices on the ride comfort. As a result, it was confirmed that the ride comfort requirements according to the ISO standard can be satisfied by applying the damping control in the capsule train suspension.
Keywords
Capsule Train; Ride Comfort; Suspension; Vibration; Damping Control;
Citations & Related Records
연도 인용수 순위
  • Reference
1 How Does an MR Damper Work? [Internet]. Parker LOAD, https://www.lord.com/products-and-solutions/activevibration-control/industrial-suspension-systems/howdoes-mr-damper-work (accessed Aug. 31, 2020)
2 ISO 2631-1. Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General requirements. International Organization for Standardization. 1997.
3 Core technology development of subsonic capsule train, Annual Report. Korea Railroad Research Institute, Korea, 2018.
4 E. Musk, Hyperloop Alpha. White paper, 2014.
5 H. James, "Technical assessment of maglev system concepts," US army corps of engineers. 1998.
6 J. He, H. Coffey, "Magnetic damping forces in figure-eight-shaped null-flux coil suspension systems," IEEE Transactions on Magnetics, 33(5), pp.4230-4232, 1997.   DOI
7 K. Higashi, S. Ohashi, H. Ohsaki, E. Masada, "Magnetic damping of the electrodynamic suspension-type superconducting levitation system," Electr. Eng. JPN., 127(2), pp.49-60, 1999. DOI: http://dx.doi.org/10.1002/(SICI)1520-6416(19990430)127:2%3C49::AID-EEJ7%3E3.0.CO;2-X   DOI
8 H. Claus, W. Schiehlen, "Modeling and simulation of railway bogie structural vibrations," J Vehicle System Dynamics, 29(S1), pp.538-552, 1998. DOI: https://doi.org/10.1080/00423119808969585   DOI
9 K. Watanabe, H. Yoshioka, E. Suzuki, T. Tohtake, M. Nagai, "A Study of Vibration Control Systems for Superconducting Maglev Vehicles(Vibration Control of Lateral and Rolling Motions)," Journal of System Design and Dynamics, 1(3), pp.593-604, 2007. DOI: https://doi.org/10.1299/jsdd.1.593   DOI
10 E. Suzuki, J. Shirasaki, K. Watanabe, H. Hoshino, M. Nagai, "Vibration reduction methods for superconducting Maglev vehicles." In Proceedings of the 8th World Congress on Railway Research (WCRR 2008), 2008.
11 T. Yamamoto, T. Murai, H. Hasegawa, H, Yoshioka, S. Fujiwara, S, Hatsukade, "Development of Distributed-type Linear Generator with Damping Control," Quarterly Report of Rtri. 41. pp.83-88, 2000. DOI: https://doi.org/10.2219/rtriqr.41.83