| Influence of Track Irregularity on Longitudinal Vibration of Wheelset and Correlation Performance |
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| 引用本文： | 马卫华 罗世辉 宋荣荣. Influence of Track Irregularity on Longitudinal Vibration of Wheelset and Correlation Performance[J]. 西南交通大学学报(英文版), 2006, 14(3): 238-251 |
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| 作者姓名： | 马卫华 罗世辉 宋荣荣 |
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| 作者单位： | [1]Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China [2]College of computer science and technology, Southwest University for Nationalities, Chengdu 610041, China |
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| 基金项目： | Scientific and Technical development Project of the Railway Ministry （ No. 2004J032） |
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| 摘 要： | Introduction Greatattentionhasbeenfocusedonthelateral performanceofrailwayvehiclesforalongtimein ordertoachievehigherspeedandbettercomfort.But thelongitudinaldynamicperformancewasneglected exceptforthestudyontractionandbrakingperform ances.Sinceithasfewre…
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| 关 键 词： | 航迹 纵向振动 加速技术 编辑工作 |
| 文章编号： | 1005-2429（2006）03-0238-014 |
| 收稿时间： | 2005-12-21 |
Influence of Track Irregularity on Longitudinal Vibration of Wheelset and Correlation Performance |
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| Ma Weihua,Luo Shihui,Song Rongrong. Influence of Track Irregularity on Longitudinal Vibration of Wheelset and Correlation Performance[J]. Journal of Southwest Jiaotong University, 2006, 14(3): 238-251 |
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| Authors: | Ma Weihua Luo Shihui Song Rongrong |
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| Abstract: | Longitudinal vibration of wheelset with respect to bogie frame often exists with a high acceleration magnitude and relative high frequency. First, a simplified model with a single wheelset moving at a constant speed on a tangential track with irregularity is used to investigate the longitudinal vibration dynamics. Computional results indicate that the longitudinal vibration frequency of the wheelset is most sensitive to the primary longitudinal stiffness and the mass of the wheelset. As to the locomotive model, the longitudinal vibration is concerned with cross-level irregularity and vertical profile irregularity. Meanwhile, a method to estimate the resonance speed is presented. Finally, a possible solution is brought forward to extend wheel-rail service life by eliminating longitudinal vibration of the wheelset. The solution is simply to arrang the primary vertical damper with a forward angle, so that its damping component can be applied to longimdinal direction. |
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| Keywords: | Track irregularity Acceleration Longitudinal vibration Dynamics |
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