Moving model experiments on transient pressure induced by a high-speed train passing through noise barrier

被引：27

作者：

Du, Jian ^{[1
,2
,3
]}

Zhang, Lei ^{[1
,2
,3
]}

Yang, Ming-zhi ^{[1
,2
,3
]}

Wu, Fan ^{[1
,2
,3
]}

Li, Kun ^{[1
,2
,3
]}

机构：

[1] Cent South Univ, Key Lab Traff Safety Track, Minist Educ, Changsha 410075, Hunan, Peoples R China

[2] Joint Int Res Lab Key Technol Rail Traff Safety, Changsha 410075, Hunan, Peoples R China

[3] Cent South Univ, Sch Traff & Transportat Engn, Changsha 410075, Hunan, Peoples R China

来源：

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 2020年 / 204卷

基金：

国家重点研发计划;

关键词：

High-speed train; Noise barrier; Moving-model rig; Pressure transients; AERODYNAMIC FORCES; COMPRESSION WAVE; DYNAMIC-RESPONSE; WIND BARRIERS; SLIPSTREAM; EFFICIENCY; LOADS; FIELD; WAKE;

D O I：

10.1016/j.jweia.2020.104267

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The pressure variations on train surfaces and noise barriers induced by a model train passing barriers of 0.125 and 0.25 m are studied using a 1/20 moving model. Pressure-time history curves on train surfaces and noise barriers are presented and compared with those of BS EN 2005. The influences of train speed, noise-barrier height, and crossing speed of trains are analyzed with their respective pressure distributions. The results indicate that the pressure amplitudes on train surfaces and noise barriers increase when the train speed and the height of the noise barrier increases, and the pressure amplitudes on the same noise barriers decrease significantly when the heights of the pressure taps increase.

引用

页数：10

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