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- W770431423 abstract "In this study, the minimum height and optimal shape of noise barrier for high-speed railway system are proposed. The noise characteristics of high-speed railway system are quite different to those of conventional railway system. Therefore conventional design method for noise barrier is no longer effective for high-speed railway system. Since the aerodynamic noise is governing in high-speed railway system, noise with low frequency of around 200 Hz is significant. In order to determine optimal height of noise barrier which satisfies local requirements, we analyzed the system numerically and 2.7m heights is proposed as an optimal value. And we also analyzed various types of noise barrier system to verify the performance of each system. U-type and round type of barrier top shape show good performance in particularly for the noise of lower frequency which is governing noise source of high-speed railway system." @default.
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- W770431423 date "2004-01-01" @default.
- W770431423 modified "2023-09-28" @default.
- W770431423 title "Numerical Noise Analysis of High-Speed Railway System with Various Shapes of Noise Barrier" @default.
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