A Study on the Dynamic Behavior of Wheel-Type Train Propelled by Superconducting Linear Synchronous Motor - Modern Mechanical Engineering

MME > Vol.4 No.3, August 2014

A Study on the Dynamic Behavior of Wheel-Type Train Propelled by Superconducting Linear Synchronous Motor ()

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DOI: 10.4236/mme.2014.43014 3,535 Downloads 4,501 Views

Author(s)

Jinho Lee, Changyoung Lee, Jeongmin Jo, Yongjae Han

Affiliation(s)

Maglev Train Research Team, Korea Railroad Research Institute, Uiwang-si, Republic of Korea.

ABSTRACT

This paper deals with a study on the dynamic behavior of 600 km/h wheel-type train propelled by superconducting linear synchronous motor (LSM). This train is of a traditional wheel-on-rail type with traction motors on wheel-bogies. However, for the 600 km/h speed, on the both sides of each vehicle, superconducting LSMs are attached and the ground coils are installed on the guideway. In this case, the guideway irregularities act as disturbance to the vehicle causing deterioration of ride comfort. And besides thrust force, the normal force could be created in superconducting LSM control, which influences vehicle dynamics during running. In this study, to examine the effect of guideway irregularity and normal force on dynamic behavior of proposed train, the vehicle dynamic model is driven and frequency analysis is performed through simulation. The simulation results show that the lateral directional acceleration is mainly influential to ride comfort; however this could be reduced effectively by electromagnetic damping force from linear generator. It is also shown that the normal force effect from superconducting LSM control is limited even though the attractive normal force acts favorably to ride comfort.

KEYWORDS

High Speed Railway, Superconducting Linear Synchronous Motor, Dynamic Behavior

Share and Cite:

Lee, J. , Lee, C. , Jo, J. and Han, Y. (2014) A Study on the Dynamic Behavior of Wheel-Type Train Propelled by Superconducting Linear Synchronous Motor. Modern Mechanical Engineering, 4, 144-153. doi: 10.4236/mme.2014.43014.

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