Abstract
The source of wayside noise for the train are the aerodynamic noise, wheel/rail noise, and power unit noise. The major source of railway noise is the wheel/rail noise caused by the interaction between the wheels and rails. The Structure borne noise is mainly a low frequency problem. The train noise and vibration nearby the elevated railway make one specific issue. The microphone array method is used to search sound radiation characteristics of elevated structure to predict the noise propagation from an elevated railway. In this paper, structure-borne noise that is brought into inside of apartment when it passes by straight line track and rail lubricator section with test coach was measured in accordance of track characteristic of urban railway vehicle. It was compared with NC curve and examinate result.
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