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首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.2; 20051026-28; Nanjing(CN) >Influence of Track Irregularity on Wheelset Longitudinal Vibration
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Influence of Track Irregularity on Wheelset Longitudinal Vibration

机译：履带不平顺对轮对纵向振动的影响

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摘要

A longitudinal vibration of wheelset with respect to bogie frame is often exists with possible high acceleration magnitude and relative high frequency. A simple model with one single wheelset moving with constant speed on a tangential track with irregularity is established to investigate this phenomenon first. Results indicate that the longitudinal vibration frequency of the wheelset is determined mainly by the primary longitudinal stiffness and the mass of wheelset. For a whole locomotive model, longitudinal vibration was concerned with the track alignment irregularity and track vertical profile irregularity. An estimate method of the resonance speed is presented at which a resonance of wheelset longitudinal vibration may be induced. Finally, the paper shows a possibility to extend wheel/rail service life by suppressing wheelset longitudinal vibration.
机译：轮对相对于转向架框架的纵向振动经常存在，并且可能具有较高的加速度幅度和相对较高的频率。建立一个简单的模型，以一个单轮对在不规则切线轨道上以恒定速度运动，以便首先研究这种现象。结果表明，轮对的纵向振动频率主要由主要纵向刚度和轮对质量决定。对于整个机车模型，纵向振动与轨道对准不规则和轨道垂直轮廓不规则有关。提出了共振速度的估计方法，在该估计方法处可以引起轮对纵向振动的共振。最后，本文显示了通过抑制轮对纵向振动来延长轮/轨使用寿命的可能性。

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