| 轨道左右不对称的车辆-轨道系统动力响应 |
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| 引用本文： | 何设猛,娄平,刘永存.轨道左右不对称的车辆-轨道系统动力响应[J].石家庄铁道学院学报,2008,21(3):34-39. |
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| 作者姓名： | 何设猛 娄平 刘永存 |
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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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| 摘 要： | 视车辆、轨道为整个系统，车辆模拟为由弹簧和阻尼器连接的多刚体，具有15个自由度，轨道模拟为两根离散粘弹性基础支承的长梁。运用弹性系统力学总势能不变值原理和形成矩阵的“对号入座”法则，建立车辆．轨道系统的运动方程。研究了左右钢轨不对称不平顺、左右钢轨的不对称支承、车辆移动速度以及钢轨类型对车辆一轨道系统响应的影响。
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| 关 键 词： | 有限元法 不平顺 不对称 动力响应 |
Dynamic Response of Asymmetrical Vehicle/Track System |
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| He Shemeng,Lou Ping,Liu Yongcun.Dynamic Response of Asymmetrical Vehicle/Track System[J].Journal of Shijiazhuang Railway Institute,2008,21(3):34-39. |
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| Authors: | He Shemeng Lou Ping Liu Yongcun |
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| Institution: | (School of Civil Engineering ＆ Architecture,Central South University, Changsha 410075, China) |
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| Abstract: | The vehicle and track are considered as an integrated system. The vehicle is modeled as a few multi - rigid body with 15 degrees of freedom connected by springs and dampers, and the track model is regarded as two long beams supported by discrete viscoelastic supports. Vibration equation of the vehicle/track system are formulated by using the principle of total potential energy with stationary value in elastic system dynamics and the ‘set-in-right-position＇ rule for formulating matrixes. The effects of the left and right rails with asymmetrical vertical irregularity, the left and right rails with asymmetrical support , the speed of moving vehicle, and the rail type on the dynamic response of the vehicle/track system are studied. |
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| Keywords: | finite element method vertical irregularity asymmetrical dynamic response |
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