Effect on Dynamic Properties of Egg Fastening System Track Installed with Tuning Rail Damper
Sun Xiao-jing1, Zhang Hou-gui1,2, Liu Wei-ning1, Wu Zong-zhen1
1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. Beijing Municipal Institute of Labour Protection, Beijing 100054, China
Abstract:In order to provide a feasible solution to control the rail corrugation occurred on the section of Egg system on Beijing metro, the presented paper introduced a laboratory test which was conducted to compare the dynamic properties of Egg system track structure with and without TRD on a 25m test track. Experimental results indicated that TRD obviously optimized the rail dynamic characteristics of track using Egg fastening system in the range of 150-400Hz. In one hand, the resonance peaks of frequency response function curve, which was identified as the cause of the rail corrugation occurred on egg fastening system track sections, were obviously moved. In the other hand, the vertical vibration decay rate was obviously increased up to 4~8 times rather than the case without TRD,suppressing the vertical vibration transited along the rail. Meanwhile, the lateral vibration decay rate along the tail was raised by TRD as well, which contributed to increase the lateral stability of track.
孙晓静1,张厚贵1,2,刘维宁1,吴宗臻1. 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 Xiao-jing1, Zhang Hou-gui1,2, Liu Wei-ning1, Wu Zong-zhen1. Effect on Dynamic Properties of Egg Fastening System Track Installed with Tuning Rail Damper. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(14): 209-214.
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