| 道床板结对轨道振动的影响 |
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| 引用本文： | 金寿延,谭复兴,王午生.道床板结对轨道振动的影响[J].同济大学学报(自然科学版),2001,29(10):1162-1168. |
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| 作者姓名： | 金寿延 谭复兴 王午生 |
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| 作者单位： | 同济大学沪西校区铁道建筑工程系, |
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| 基金项目： | 铁道部科技研究开发计划资助项目(96G17-378) |
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| 摘 要： | 根据实测的加速度波形及其能量谱密度图，采用二自由度钢轨振动理论，定性地分析道床板结对钢轨振动的影响：道床结构使钢轨垂直加速度振动总能量增加，对轨枕竖向振动的影响较钢轨的大；道床板结对道床垂直振动的影响不大，但使振动能量集中部分频率降低；道床板结使钢轨和轨枕的位移有所降低，因此减弱了整个轨道系统的弹性功能。
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| 关 键 词： | 道床板结 加速度 能量谱密度 轨道 振动 |
| 文章编号： | 0253-374(2001)10-1162-07 |
| 修稿时间： | 2001年2月13日 |
Researching for the Influence of Cement Hardening on the Rail Track Vibration |
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| JIN Shou-yan,TAN Fu-xing,WANG Wu-sheng.Researching for the Influence of Cement Hardening on the Rail Track Vibration[J].Journal of Tongji University(Natural Science),2001,29(10):1162-1168. |
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| Authors: | JIN Shou-yan TAN Fu-xing WANG Wu-sheng |
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| Abstract: | According to the measured acceleration waveforms and the figures of energy spectrum density,the influence of cement hardening on the rail track vibration was qualitatively analysised with the theory of two degrees of freedom rail track vibration.Cement hardening increased the total amount of the vertical acceleration vibration of rail track.The influence of cement hardening on the vertical vibration of sleeper was more than rail track.The effect of cement hardening upon the vertical vibration of roadbed was little,but it decreased the frequency in the part that vibrating energy concentrated.Cement handening reduced the displacement of rail track and sleeper,so that it reduced the vibration function of the whole rail track system. |
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| Keywords: | cement hardening acceleration energy spectrum density |
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