轨道交通的约束阻尼钢轨吸振器技术研究与应用 

蒋伟康;万泉;严莉;张海滨;贺建良

振动与冲击 ›› 2009, Vol. 28 ›› Issue (10) : 78-83.

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PDF(1145 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (10) : 78-83.
论文

轨道交通的约束阻尼钢轨吸振器技术研究与应用 

  • 蒋伟康1;万泉1;严莉1;张海滨1;贺建良2
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Study of Constrained Damping Dynamic Absorber on the Rail of Urban Transit

  • JIANG Weikang 1;WAN Quan 1;Yan LI 1;ZHANG Haibin 1;HE Jianliang 2
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摘要

摘要:城市轨道交通的主要是轮轨噪声,抑制钢轨的振动速度,对降低轮钢轨噪声有显著作用,目前的轮轨降噪技术对于轮轨噪声,尤其是500Hz以下的中低频率成分还缺乏理想的制约手段,而影响沿线地区声环境的主要是噪声中的低频成分。在阻尼钢轨、动力吸振器的基础上,开发了一种“动力吸振多层约束阻尼钢轨吸振器”, 有显著降噪效果的频率下限为200Hz。工程应用的结果表明:加钢轨吸振器后,正线的列车通过平均声级比原来降低约4dB(A),列车站台噪声降低2~3 dB(A)。 该型钢轨吸振器现场安装方便,使用的胶粘剂对钢轨没有腐蚀作用,不会造成对线路通讯、钢轨探伤和列车行驶的不良影响。

Abstract

Abstract: Wheel-rail noise plays a dominant part in the overall noise of urban railway transportation. It is a key issue for reducing wheel-rail noise to restrain the vibration velocity of rail. Most current techniques are not effective enough for reducing wheel-rail, especially for the components with the frequency lower than 500Hz, which make great contribution to the acoustic noise pollution on the zone along railway. Based on the damping rail and dynamic absorber, a novel constrained damping dynamic absorber for railway is developed, which lower limitation of effective frequency band is only 200 Hz. The results of application in engineering show that the noise on the normal railway reduces near 4dB(A), and on platform reduces near 2~3dB(A). This constrained damping dynamic absorber is easy to be stuck on the rail, and has no negative effect to the communication function of railway, vehicle running and supersonic detecting damage of rail.

关键词

轮轨噪声 / 动力吸振器 / 阻尼 / 轨道交通

Key words

Wheel-rail noise / Dynamic absorber / Constrained damping / Urban railway

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导出引用
蒋伟康;万泉;严莉;张海滨;贺建良. 轨道交通的约束阻尼钢轨吸振器技术研究与应用 [J]. 振动与冲击, 2009, 28(10): 78-83
JIANG Weikang;WAN Quan;Yan LI;ZHANG Haibin;HE Jianliang . Study of Constrained Damping Dynamic Absorber on the Rail of Urban Transit [J]. Journal of Vibration and Shock, 2009, 28(10): 78-83

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