随机不平顺激励下磁浮车辆轨道梁动力响应

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北京交通大学土木建筑工程学院, 100044北京交通大学土木建筑工程学院, 100044北京交通大学土木建筑工程学院, 100044北京交通大学土木建筑工程学院, 100044

Study on dynamic responses of high-speed maglev vehicle/guideway coupling system under random irregularity

摘要: 建立了高速常导磁浮交通车辆轨道梁空间耦合模型，探讨了合理的磁浮线路功率谱形式，利用分离迭代的数值积分方法求解了大规模非线性耦合动力方程. 利用计算结果分析了随机不平顺对系统动力学指标影响规律，并采用功率谱密度曲线进行了谱分析，得到了高速磁浮交通车梁耦合系统随机振动的基本规律.
- 铁路运输 /
- 磁悬浮 /
- 耦合动力学 /
- 线路不平顺 /
- 轨道梁
Abstract: In this paper, the maglev vehicle/guideway dynamic model isestablished based on the EMS maglev vehicle and the elevated-guidewaytechnology, the PSD model for guideway irregularities is discussed, and theseparated iterative procedure and its corresponding numerical algorithm areapplied in simulations. The effect of random irregularity on dynamiccharacteristics of the maglev system is studied numerically, and the randomresponses of the vehicle and the guideway are analyzed. Finally therandom vibrationcharacteristics of the vehicle/guideway system are obtained. It is onthis basis that control suggestions are proposed for guideway irregularityin maglev.
- railway transport /
- maglev /
- coupling dynamics /
- guideway irregularity /
- guideway