| 轮轨系统高频振动研究 |
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| 引用本文： | 刘林芽,雷晓燕.轮轨系统高频振动研究[J].中国铁道科学,2004,25(2):52-55. |
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| 作者姓名： | 刘林芽 雷晓燕 |
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| 作者单位： | 1. 同济大学,铁道建筑工程系,上海,200331;华东交通大学,土建学院,江西,南昌,330013
2. 华东交通大学,土建学院,江西,南昌,330013 |
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| 基金项目： | 国家自然科学基金项目(5026800)，江西省自然科学基金项目(0250034) |
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| 摘 要： | 通过建立轮轨系统高频振动模型,分析轮轨相互作用关系,给出车轮及钢轨的高频振动功率谱计算式,并且推导了车轮、钢轨阻抗特性,计算因轮轨表面粗糙度而引起的轮轨高频振动响应。表明大约在1300Hz以下频段,主要以钢轨振动为主,而在1300Hz以上频段,车轮振动占主导地位。
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| 关 键 词： | 轮轨关系 轮轨系统 高频振动 噪声 理论计算 |
| 文章编号： | 1001-4632(2004)02-0052-04 |
| 修稿时间： | 2003年12月19 |
Study on High Frequency Vibration of Wheel/Rail System |
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| LIU Lin-ya.Study on High Frequency Vibration of Wheel/Rail System[J].China Railway Science,2004,25(2):52-55. |
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| Authors: | LIU Lin-ya |
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| Institution: | LIU Lin-ya~ |
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| Abstract: | The relationship of wheel/rail interaction is analyzed by means of establishment of high frequency (vibration) model. The expressions of power spectrum for high frequency (vibration) of the wheel/rail system are given. The impedances of the vehicle and the track are deduced. The dynamic responses of high frequency (vibration) which is generated by small-scale roughness on the running surfaces of wheel and rails are computed. The result shows that the vibration amplitude of rail dominates under 1 300 Hz, while above 1 300 Hz that of the wheel dominates. |
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| Keywords: | Wheel/rail relation Wheel/rail system High frequency vibration Noise Theoretical calculation |
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