本文選題：高速鐵路 + 氣動噪聲��； 參考：《公路》2017年04期

【摘要】：針對我國高鐵隧道量多線長、隧道噪聲危害大、乘車舒適性低等特點,首先對高鐵隧道噪聲產(chǎn)生機理進行了研究,重點探討了阻塞比對隧道噪聲的影響,并在國內(nèi)研究的基礎(chǔ)上提出了合理的降噪方案——修建新型緩沖設(shè)施,即E形緩沖設(shè)施和梯形緩沖設(shè)施。利用大型聲學(xué)仿真軟件Raynoise對無緩沖型,含E形、含梯形緩沖設(shè)施的隧道進行仿真研究,然后對比分析高速列車在3種隧道內(nèi)運行過程中,其噪聲水平的變化情況。仿真結(jié)果表明,梯形緩沖設(shè)施具有良好的降噪效果。
[Abstract]:In view of the characteristics of high speed railway tunnel in our country, such as the quantity of multiple lines, the great harm of tunnel noise and the low ride comfort, the noise generation mechanism of high speed railway tunnel is studied, and the influence of blocking ratio on tunnel noise is discussed. On the basis of domestic research, a reasonable noise reduction scheme is put forward, which is to build a new buffer facility, namely, E type buffer facility and trapezoid buffer facility. The tunnel with no buffer, E shape and trapezoid buffer is simulated by Raynoise, and the noise level of high speed train in three kinds of tunnels is compared and analyzed. The simulation results show that the trapezoidal buffer has a good noise reduction effect.
【作者單位】： 解放軍理工大學(xué)野戰(zhàn)工程學(xué)院;
【分類號】：U453.82
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本文編號：2065064