Effect of fastener stiffness and damping on the structure-borne noise of railway box-girder

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (15) : 150-155.

ZHANG Xun, SU Bin, LI Xiao-zhen

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Abstract

In order to analyze the effect of fastener stiffness and damping on the box-girder noise, a mixed FEM-BEM noise prediction model based on train-track-bridge coupling vibration theory and acoustical BEM theory was built and validated by field test. A 32 m simply-supported box-girder was selected as the case study, the effects of fastener stiffness and damping on the distribution of noise field, characteristics of noise spectra and wheel/rail interaction force were investigated. Results show that the mixed FEM-BEM model is a good predictor, the dominant frequency range of structure-borne noise is 40～80 Hz which mainly depends on the fastener stiffness; the sound pressure levels (SPLs) of the field points with a height of 1.2 m from the ground have an attenuation rate of 0.29 dB(Lin)/m and 0.067 dB(Lin)/m respectively in the distance of 10～40 m and 40～100 m from the nearest track centerline; the direction angle of structure-borne noise decreases significantly with the increase of the fastener stiffness; when the fastener stiffness varies from 10 MN/m to 100 MN/m, the average SPLs increase 12.5 dB(Lin) for the field points in the longitudinal section that has a distance of 30 m from the nearest track centerline, and the peak frequencies of structure-borne noise and wheel/rail interaction force vary from 30 Hz to 67 Hz simultaneously; the fastener damping has little effect on the directivity of the noise field; when the fastener damping ratio varies from 0.0625 to 0.5, the average SPLs decrease 5.0 dB(Lin) for the field points in the longitudinal section that has a distance of 30 m from the nearest track centerline, and the peak frequencies of the structure-borne noise and wheel/rail interaction force remain unchanged.

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Railway box-girder / structure-borne noise / BEM / fastener stiffness / fastener damping

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ZHANG Xun, SU Bin, LI Xiao-zhen. Effect of fastener stiffness and damping on the structure-borne noise of railway box-girder[J]. Journal of Vibration and Shock, 2015, 34(15): 150-155

References

[1] Thompson D J. Railway Noise and Vibration : Mechanisms, Modeling and Means of Control [M]. UK: Elsevier Science Ltd., 2009: 359.
[2] Ngai KW, Ng CF. Structure-borne noise and vibration of concrete box structure and rail viaduct [J]. Journal of Sound and Vibration, 2002, 255(2): 281–297.
[3] Li X Z, Zhang X, Zhang Z J, et al. Experimental research on noise from intercity railway concrete box-girder bridges [J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, published online, DOI: 10.1177/0954409713503459.
[4] 张迅, 李小珍, 刘全民, 等. MTMDs控制高速铁路简支箱梁桥车致振动噪声的研究[J]. 振动与冲击, 2013, 32(13): 194-200.
ZHANG Xun, LI Xiao-zhen, LIU Quan-min, et al. Study of MTMDs on the structure-borne noise control of High-speed Railway simply supported box-girder bridge [J]. Journal of Vibration and Shock, 2013, 32(13): 194-200.
[5] 高飞, 夏禾, 曹艳梅, 等. 城市轨道交通高架桥梁振动与声辐射研究[J]. 振动与冲击, 2012, 31(4): 72-76.
GAO Fei, XIA He, CAO Yan-mei, et al. Vibration and noise influences of elevated structures in urban railway [J]. Journal of Vibration and Shock, 2012, 31(4): 72-76.
[6] 韩江龙, 吴定俊, 李奇. 板厚和加肋对槽型梁结构噪声的影响[J]. 振动工程学报, 2012, 25(5): 589-594.
HAN Jiang-long, WU Ding-jun, LI Qi. Influence of deck thickness and stif feners on structure-borne noise of the trough beams [J]. Journal of Vibration Engineering, 2012, 25(5): 589-594.
[7] 孙亮明, 谢伟平. 空气中纵向加肋混凝土圆柱壳的结构噪声辐射分析[J]. 土木建筑与环境工程, 2010, 32(3): 41-45.
SUN Liang-ming, Xie Wei-ping. Structural noise analysis of longitudinal stiffened concrete cylindrical shell in air [J]. Journal of Civil, Architectural & Environmental Engineering, 2010, 32(3): 41-45.
[8] Zhang X, Li X Z, Liu Q M, et al. Theoretical and experimental investigation on structure-borne noise under moving high-speed train [J]. Science China Technological Sciences, 2013, 56(4): 917-924.
[9] 张迅, 李小珍, 刘全民, 等. 混凝土箱梁的结构噪声及其影响因素[J]. 西南交通大学学报, 2013, 48(3): 409-414.
ZHANG Xun, LI Xiao-zhen, LIU Quan-min, et al. Study on structure-borne noise of concrete box-Girder and its influence factors [J]. Journal of Southwest Jiaotong University, 2013, 48(3): 409-414.
[10] 耿传智, 董国宪, 朱剑月. 弹性钢轨扣件轨道的轮轨作用力分析[J]. 城市轨道交通研究, 2007(4): 20-21+25.
GENG Chuan-zhi, DONG Guo-xian , ZHU Jian-yue. Analysis of wheel-track force with elastic rail fastener [J]. Urban Mass Transit, 2007(4): 20-21+25.
[11] Nelson J T. Recent development in ground-borne noise and vibration control [J]. Journal of Sound and Vibration, 1996, 193(1), 367-376.
[12] 李增光, 吴天行. 铁道车辆-轨道-高架桥耦合系统振动功率流分析[J]. 振动与冲击, 2010, 29(11): 78-82.
LI Zeng-guang, WU Tian-xing. Analysis of vibration power flow for a railway vehicle-track-viaduct coupled system [J]. Journal of Vibration and Shock, 2010, 29(11): 78-82.
[13] Wu T X, Liu J H. Sound emission comparisons between the box-section and U-section concrete viaducts for elevated railway [J]. Noise Control Engineering Journal, 2012, 60(4): 450-457.
[14] 李小珍. 高速铁路列车-桥梁系统耦合振动理论及应用研究[D]. 成都: 西南交通大学, 2000.
LI Xiao-zhen. Studies on theory and application of train-bridge system coupling vibration in high-speed railway [D]. Chengdu: Southwest Jiaotong University, 2010.