Study on Wheel/Rail Acoustic Radiation of Trough Girder Bridge for Urban Rail Transit
Wheel/rail acoustic radiation of trough Girder Bridge for urban rail transit is studied in this paper.With the theory of train-track-bridge coupling dynamics and FEM/BEM, wheel/rail noise induced by light rail vehicle on the bridge is calculated.Using these results as sound source, a model for acoustics computation is established and sound field around trough girder is simulated with the software SYSNOISE.Laws of acoustic radiation and propagation influenced by trough girder are analyzed.It is concluded that noise reduction effect of trough girder is much better than box girder by comparison of sound fields between trough girder and box girder.
wheel/rail noise trough girder acoustic radiation urban rail transit
K.B.Li N.Zhang H.Xia
School of Civil Engineering, Beijing Jiaotong University, Beijing, China
国际会议
第六届国际环境振动学术研讨会(6th International Symposium on Environmental Vibration)(ISEV2013)
上海
英文
357-362
2013-11-08（万方平台首次上网日期，不代表论文的发表时间）