| 郑武线轨道不平顺的相关性分析 |
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| 引用本文： | 左玉云,向俊.郑武线轨道不平顺的相关性分析[J].铁道科学与工程学报,2006,3(1):46-49. |
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| 作者姓名： | 左玉云 向俊 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 国家自然科学基金资助项目(50078006)，铁道部科技研究开发计划项目(2001G0292003G043)，教育部高等学校博士点科研基金资助项目(20010533004) |
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| 摘 要： | 根据轨道不平顺相关函数的数据处理方法,基于郑武线轨道不平顺实测数据,对郑武线轨道不平顺的相关性进行分析,得出郑武线轨道高低、方向及水平不平顺的相关函数的具体表达式;此外,得出郑武线轨道水平不平顺状态最差,方向不平顺次之,高低不平顺相对较好;郑武线轨道高低、方向及水平不平顺彼此独立,因而可将某单一不平顺或几种不平顺组合作为车-轨系统振动分析激扰。
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| 关 键 词： | 轨道 不平顺 相关函数 标准差 互相关系数 |
| 文章编号： | 1672-7029(2006)01-0046-04 |
| 修稿时间： | 2005年11月25 |
Correlation analysis of track irregularities of Zhengzhou-Wuhan Railway |
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| ZUO Yu-yun,XIANG Jun.Correlation analysis of track irregularities of Zhengzhou-Wuhan Railway[J].Journal of Railway Science and Engineering,2006,3(1):46-49. |
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| Authors: | ZUO Yu-yun XIANG Jun |
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| Abstract: | According to the data analysis method for the correlation function of track irregularities and the great deal of field test data of track irregularities on Zhengzhou-Wuhan railway,the correlation analysis of track irregularities was made,the concrete expressions of correlation functions of track vertical profile,alignment and cross-level irregularities on Zhengzhou-Wuhan railway were obtained respectively.The results show that on Zhengzhou-Wuhan railway,the track cross-level irregularity status is the worst,which is followed by the track alignment irregularity,and the track vertical profile is comparatively the best. The three types of irregularities are independent of each other,which supports a basis for choosing each irregularity or the combination irregularity as the exciting source of vibration analysis of vehicle-track system. |
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| Keywords: | track irregularity correlation function standard deviation cross-correlation coefficient |
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