Prediction and spatial distribution of low-frequency noise radiated from the multi-span bridge

被引：0
|
作者：
Song X.-D. [1 ]
Li Q. [2 ]
Wu D.-J. [2 ]
机构：
[1] Department of Bridge Engineering, Southeast University, Nanjing
[2] Department of Bridge Engineering, Tongji University, Shanghai
来源：
Gongcheng Lixue/Engineering Mechanics | 2017年 / 34卷 / 03期
关键词：
2.5D method; Far field noise; Low-frequency noise; Multi-span bridge; Urban rail transit;
D O I：
10.6052/j.issn.1000-4750.2015.09.0757
中图分类号：
学科分类号：
摘要：
A single-span bridge model was usually used in the bridge noise simulation in most of the existing literature, which ignores the noise radiated from adjacent spans. A prediction method is proposed to predict the multi-span bridge noise in this study. First, the vibrations of the multi-span bridge are calculated from the vehicle-track-bridge interaction analysis. Then, the modal acoustic transfer vectors (MATVs) of the multi-span bridge are obtained using the 2.5 dimensional (2.5D) boundary element method. Finally, the multi-span bridge noise can be derived combing the bridge vibration and the associated MATVs. The simulated sound pressures radiated from the U-shaped girder obtained from the multi-span bridge model and single-span model are compared with the measurements, and the research shows the multi-span bridge model should be used in the far field noise prediction. The investigation of the spatial distribution of the multi-span bridge noise shows the bridge noise almost distribute uniformly along the longitudinal direction. Thus, an arbitrary section perpendicular to the bridge can be chosen in the field test. © 2017, Engineering Mechanics Press. All right reserved.
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页码：22 / 28
页数：6
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共 17 条
  • [1] Peng J., Wang J., Comparison of Chinese syllable recognition ability by children in low-frequency noise and white noise, Journal of South China University of Technology (Natural Science Edition), 41, 8, pp. 127-130, (2013)
  • [2] Shukla S.P., Yadav S.K., Lohani B., Et al., Characterization of traffic noise for a typical Indian road crossing, Current Science, 103, 10, pp. 1193-1201, (2012)
  • [3] Li X., Liu X., Zhang X., Et al., Research on identification of structure-borne noise source of high-speed railway simply-supported box girder, Engineering Mechanics, 31, 1, pp. 129-136, (2014)
  • [4] Zhang X., Li X., Liu D., Et al., Sound radiation characteristics of 32 m simply supported concrete box girder applied in high-speed railway, Journal of the China Railway Society, 34, 7, pp. 96-102, (2012)
  • [5] Zhang X., Li X.Z., Li X.D., Et al., Train-induced vibration and noise radiation of a prestressed concrete box-girder, Noise Control Engineering Journal, 61, 4, pp. 425-435, (2013)
  • [6] Li J., Zhang N., Zhang L., Numerical simulation of the vibration and structure-borne noise of the viaduct, Environmental Engineering, 30, pp. 156-160, (2012)
  • [7] Shi G., Yang X., Zhang X., Et al., Noise radiation analysis of box-girder structure in slab track section of high speed railways, Noise and Vibration Control, 35, 1, pp. 160-164, (2015)
  • [8] Han J., Wu D., Li Q., Calculation and analysis of structure-borne noise from urban rail transit trough girders, Engineering Mechanics, 30, 2, pp. 190-195, (2013)
  • [9] Li Q., Xu Y.L., Wu D.J., Concrete bridge-borne low-frequency noise simulation based on vehicle- track-bridge dynamic interaction, Journal of Sound and Vibration, 331, 10, pp. 2457-2470, (2012)
  • [10] Li Q., Song X.D., Wu D.J., A 2.5-dimensional method for the prediction of structure-borne low-frequency noise from concrete rail transit bridges, Journal of the Acoustical Society of America, 135, 5, pp. 2718-2726, (2014)
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