铁道科学与工程学报2017，Vol.14Issue(6)：1122-1129,8.
吸声轨道对高速列车辐射气动噪声影响研究
The research of acoustic track impact on high-speed train aerodynamic radiation noise
摘要
Abstract
In this paper, the aerodynamic radiation noise of high speed train running on different acoustic tracks were achieved by numerical simulating using the combination of finite element method, boundary element method and large eddy simulation. According to the noise reduction effect and character analysis of whole train or bottom area noise source while running on different acoustic tracks, the following conclusions were obtained. Ballasted track and track acoustic panels can reduce aerodynamic radiation noise of high-speed train effectively. The effect of noise reduction is 0.8 dB to 2.8 dB by using the ballasted track, while it is 1.1 dB to 3.5 dB by using track acoustic panels. The track acoustic panels can absorb aerodynamic radiation noise energy accounted for 71.2% of bottom area and 21.5% of whole train while running at 350 km/h speed.关键词
气动噪声/吸音板轨道/辐射噪声/大涡模拟(LES)/有限元法(FEM)Key words
aerodynamic noise/track acoustic panel/radiation noise/large eddy simulation/finite element method分类
交通工程引用本文复制引用
张代娇,谭晓明,尚克明,杨志刚,梁习锋,董天韵,何娇..吸声轨道对高速列车辐射气动噪声影响研究[J].铁道科学与工程学报,2017,14(6):1122-1129,8.基金项目
国家科技支撑计划项目(2015BAG12B01-24) （2015BAG12B01-24）
中车青岛四方机车车辆股份有限公司资助项目(SF/JS-马字-2015-516) （SF/JS-马字-2015-516）
