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Development of a tilting system for electric multiple unit to speed up on conventional lines

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Abstract

An advanced tilting system for KTT (Korean Tilting Train) was developed and a performance test of the system has been completed. KTT has been constructed to speed up and promise a significant enhancement in service quality on a conventional line. KTT is an electric multiple unit composed of 6 cars running at the design speed of 200 km/h. The tilting system is the core technology of KTT and combined with the conventional bogie system. It has a self-steering mechanism and a swing link. The self-steering mechanism of Z-bar type is free to rotate on the curve and stable to run on a straight line. The swing link mechanism of the bolster enables the carbody to tilt up to 8°. A tilting control system detects a curve with sensors and commands the electro-mechanical actuators to move the bolster through the computer network system. GPS collaborates with the tilting system to perceive the curve previously and enables gradual tilting so as not to violate passenger comfort. The performance of the tilting system has been verified by a trial test running of KTT on a commercial conventional line. The tilting system is ready for commercial use.

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Correspondence to Sung Il Seo.

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This paper was recommended for publication in revised form by Associate Editor Hong Hee Yoo

SUNG IL SEO, Dr. Seo was born at Seoul, Korea in 1962. He graduated from Department of Naval Architecture, Seoul National University in 1984 and received a doctor degree from the same university in 1994. He entered Hanjin Heavy Industries Co. in 1986 and was engaged in structural design of ship and development of aluminum rolling stocks. He transferred to KRRI in 2002. He was engaged in development of Korea High Speed Train. He has been in charge of the development project for Korea Tilting Train. He published many research papers on high speed train, structural design and welding deformations in international journals.

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Seo, S.I., Kim, N.P., Lee, S.G. et al. Development of a tilting system for electric multiple unit to speed up on conventional lines. J Mech Sci Technol 22, 2171–2179 (2008). https://doi.org/10.1007/s12206-008-0722-0

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  • DOI: https://doi.org/10.1007/s12206-008-0722-0

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