• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.11b
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• pp.35-38
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• 2005

It is widely recognized that train Is one of the most efficient and convenient ways for passenger and freight transportation. However, the environmental noise problem is occurred with the construction and service of train. The noise problems caused by train prevent people from living in a silent environment. Furthermore, this problem is related with the right to preserve one's environment. The objectives of this research are train noise measurement and analysis which might be a base-study for prediction of train noise. This paper mainly deals with the noise of the 'Semaul' train. The train noise shows distinct characteristics according to the variation of height and distance. Furthermore, the database and its interface program are developed for systematic analysis and future research.

• 한국기계연구소 소보
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• s.14
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• pp.101-110
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• 1985

Kyung-p-1 main line is characterized by its curves radii of which are considerably small. It is essential for running time reduction of train to improve capabilities of curve negotiation. This improvement can be achieved by designing a bogie with flexible suspension system. The effect of the improvement is mainly concerned in the primary yaw stiffness of bogie suspension. This paper gives a linear analysis for the motion of railway vehicle on curved track and gives also computer simulation results for Semaul Train. The results introduce a conclusion that the primary yaw stiffness of Semaul train is too rigid to be self-steering on Kyung-pu main line curves.