Experimentation on Vibration Transmission Characteristics of Modern Tram Tracks
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摘要: 为探讨现代有轨电车不同轨道的振动传递特性，以某市现代有轨电车为例，对3种不同的轨道（未采取减振处理的普通轨道、安装弹性包覆材料的普通轨道和嵌入式轨道）进行测试. 基于锤击试验原理，获取了钢轨振动衰减率、轨道各部件的频响特性和插入损失，并与其它减振轨道进行了比较. 结果表明：嵌入式轨道的钢轨振动衰减率表现出明显的频率相关性，其在1 600 Hz频带可达5.9 dB/m；嵌入式轨道的第1个钢轨共振点出现在频率160 Hz附近，其频响函数幅值和共振频率均比未采取减振处理的普通轨道小；总体上，与安装弹性包覆材料的普通轨道和其它减振轨道相比，嵌入式轨道在中高频表现出更好的钢轨纵向减振效果，故理论上能够对轮轨噪声起到良好的抑制作用.Abstract: In order to explore vibration transmission characteristics of different tracks in modern tram traffic (MTR), the MTR in a city was selected as the case, three different tracks were measured, i.e., ordinary track without vibration absorption elements, ordinary track with elastic cladding materials, and embedded track. Based on the principle of hammering test, the rail vibration decay rate, frequency response characteristic of each track component and insertion loss were obtained. The test results were compared with other anti-vibration tracks. Results show that the vibration decay rate of the embedded track exhibits frequency dependency, which has a maxima of 5.9 dB/m at 1600 Hz frequency-band. The first rail resonance point of the embedded track appears near 160 Hz, the amplitude of frequency response function and resonant frequency are both lower than that of the ordinary track without vibration absorption elements. Overall, compare to the ordinary track with elastic cladding materials and other anti-vibration tracks, the embedded track demonstrates better vibration reduction effect in longitudinal direction of rails in mid- and high-frequency range, and thus theoretically the wheel-rail noise can be well suppressed.
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Key words:
- embedded rail track /
- vibration /
- hammering test /
- track decay rate /
- insertion loss
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表 1 材料参数
Table 1. Material parameters
材料 弹性模量/
Pa泊松比 密度/
（kg•m−3）损耗
因子刚度/
（MN•m−1）钢轨 2.10 × 1011 0.30 7850 扣件 0.10 40 弹性包
覆材料3.14 × 109 0.35 1350 高分子阻
尼材料5.00 × 106 0.45 1000 0.15 弹性垫板 2.00 × 106 0.44 800 0.15 轨道板 3.60 × 1010 0.20 2400 
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表 2 减振轨道的技术参数
Table 2. Technical parameters of anti-vibration tracks
部件 静刚度/
（MN•m−1）轨枕间
距/m工作频
率/Hz剪切型减
振器扣件8～12 0.625 − TRD − − 200～5000
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THOMPSON D J. Railway noise and vibration: mechanisms, modelling and means of control[M]. Amsterdam: Elsevier, 2009: 264-265. 刘维宁, 马蒙. 地铁列车针对环境影响的预测、评估与控制[M]. 北京: 科学出版社, 2014. 张迅,赵宇,阮灵辉,等. 基于小波变换分析箱梁振动噪声的时频特性[J]. 西南交通大学学报,2020,55(1): 109-117.ZHANG Xun, ZHAO Yu, RUAN Linghui, et al. Time-frequency characteristics of box-girder vibration and noise based on wavelet transform[J]. Journal of Southwest Jiaotong University, 2020, 55(1): 109-117. VAN LIER S. The vibro-acoustic modelling of slab track with embedded rails[J]. Journal of Sound and Vibration, 2000, 231(3): 805-817. doi: 10.1006/jsvi.1999.2564 NILSSON, C M, JONES C J C, THOMPSON D J, et al. A waveguide finite element and boundary element approach to calculating the sound radiated by railway and tram rails[J]. Journal of Sound and Vibration, 2009, 321(3/4/5): 813-836. MICHAS G. Slab track systems for high-speed railway[D]. Stockholm: Royal Institute of Technology, 2012. ZHAO Y, LI X, LV Q, et al. Measuring,modelling and optimising an embedded rail track[J]. Applied Acoustics, 2017, 116: 70-81. doi: 10.1016/j.apacoust.2016.07.021 江小州,焦洪林,杨刚,等. 嵌入式轨道结构的声振特性参数优化研究[J]. 噪声与振动控制,2015,35(3): 10-14,28.JIANG Xiaozhou, JIAO Honglin, YANG Gang, et al. Parameters optimization research on the acoustic and vibration characteristics of an embedded track structure[J]. Noise and Vibration Control, 2015, 35(3): 10-14,28. 江小州,温泽峰,齐欢欢,等. 嵌入式轨道的振动噪声特性及优化研究[J]. 噪声与振动控制,2019,39(3): 163-168,192. doi: 10.3969/j.issn.1006-1355.2019.03.032JIANG Xiaozhou, WEN Zefeng, QI Huanhuan, et al. Characteristics and optimization of the vibration and noise of an embedded track[J]. Noise and Vibration Control, 2019, 39(3): 163-168,192. doi: 10.3969/j.issn.1006-1355.2019.03.032 杜几平,邓超荣,马润涛,等. 降噪块对嵌入式轨道声振特性和造价的影响[J]. 噪声与振动控制,2018,38(6): 167-171,204. doi: 10.3969/j.issn.1006-1355.2018.06.032DU Jiping, DENG Rongchao, MA Runtao, et al. Influence of the noise reduction blocks on acoustic radiation performance and cost of embedded tracks[J]. Noise and Vibration Control, 2018, 38(6): 167-171,204. doi: 10.3969/j.issn.1006-1355.2018.06.032 LING L, HAN J, XIAO X, et al. Dynamic behavior of an embedded rail track coupled with a tram vehicle[J]. Journal of Vibration and Control, 2017, 23(14): 2355-2372. doi: 10.1177/1077546315616521 冯青松,孙魁,罗信伟,等. 简支梁桥上有轨电车嵌入式轨道纵向力分析[J]. 铁道工程学报,2017,34(11): 27-32. doi: 10.3969/j.issn.1006-2106.2017.11.007FENG Qingsong, SUN Kui, LUO Xinwei, et al. Longitudinal force analysis of tram embedded track on simply supported bridge[J]. Journal of Railway Engineering Society, 2017, 34(11): 27-32. doi: 10.3969/j.issn.1006-2106.2017.11.007 冯青松,孙魁,雷晓燕,等. 连续梁桥上有轨电车嵌入式轨道伸缩力分析[J]. 铁道科学与工程学报,2019,16(1): 50-56.FENG Qingsong, SUN Kui, LEI Xiaoyan, et al. Analysis of expansion-constriction force of tram embedded track on continuous beam bridge[J]. Journal of Railway Science and Engineering, 2019, 16(1): 50-56. RYJÁČEK P, HOWLADER M M, VOKÁČ M, et al. The Rail-bridge interaction– recent advances with ers fastening system for steel bridges[J]. Transportation Research Procedia, 2016, 14: 3972-981. doi: 10.1016/j.trpro.2016.05.494 International Organization for Standardization. Vibration and shock– experiment determination of mechanical mobility, part 5: measurement using impact excitation with an exciter which is not attached to the structure: ISO 7626-5[S]. [S.l.]: International Organization for Standardization, 1994. British Standards Institution. 2010 Railwayapplications－noise emission－characterization of the dynamic properties of track selections for pass by noise measurements: BS EN 15461: 2008 + A1[S]. London: British Standards Institution, 2010. 刘卫丰,张厚贵,孟磊,等. 北京地铁采用调频式钢轨减振器抑制钢轨振动的试验研究[J]. 振动工程学报,2016,29(1): 109-115.LIU Weifeng, ZHANG Hougui, MENG Lei, et al. A test of suppressing rail vibration by tuned rail damper for Beijing metro[J]. Journal of Vibration Engineering, 2016, 29(1): 109-115. 孙晓静,张厚贵,刘维宁,等. 轨道系统钢轨振动衰减率动力测试研究[J]. 铁道工程学报,2015,32(7): 34-39. doi: 10.3969/j.issn.1006-2106.2015.07.007SUN Xiaojing, ZHANG Hougui, LIU Weining, et al. Test research on the characterizing the dynamic damping behavior of track structure[J]. Journal of Railway Engineering Society, 2015, 32(7): 34-39. doi: 10.3969/j.issn.1006-2106.2015.07.007 孙晓静,张厚贵,刘维宁,等. 调频式钢轨阻尼器对剪切型减振器轨道动力特性的影响[J]. 振动与冲击,2016,35(14): 209-214.SUN Xiaojing, ZHANG Hougui, LIU Weining, et al. Effect of tuning rail damper on dynamic properties of the track structure using egg fastening system[J]. Journal of Vibration and Shock, 2016, 35(14): 209-214. 成都市新筑路桥机械股份有限公司. 嵌入式连续支承无砟轨道宣传手册[Z]. 成都: 成都市新筑路桥机械股份有限公司, 2015 -
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