| 基于Simulink的柔性车体垂向振动特性分析 |
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| 引用本文： | 王辉,钟晓波,沈钢. 基于Simulink的柔性车体垂向振动特性分析[J]. 噪声与振动控制, 2012, 32(5): 79-82. DOI: 10.3969/j.issn.1006-1335.2012.05.018 |
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| 作者姓名： | 王辉 钟晓波 沈钢 |
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| 作者单位： | （ 同济大学 铁道与城市轨道交通学院， 上海 201804 ） |
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| 摘 要： | 考虑车体的柔性模态，运用振型叠加法获得车体的垂向振动微分方程，并在MATLAB/Simulink中创建车辆刚柔混合垂向动力学模型，分析车体各阶弹性自振频率、阻尼比及车辆行驶速度对车体垂向振动特性的影响，并基于上述分析提出车辆平稳性共振波长的概念，论证平稳性共振波长是车辆的固有特性，为车辆的设计及线路的维护工作提供参考和评价帮助。
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| 关 键 词： | 振动与波 刚柔混合模型 振型叠加法 平稳性共振波长 MATLAB/Simulink 铁道车辆 |
Vertical Vibration Analysis of Flexible Car-body Based on Simulink |
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| WANG Hui,ZHONG Xiao-bo,SHEN Gang. Vertical Vibration Analysis of Flexible Car-body Based on Simulink[J]. Noise and Vibration Control, 2012, 32(5): 79-82. DOI: 10.3969/j.issn.1006-1335.2012.05.018 |
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| Authors: | WANG Hui ZHONG Xiao-bo SHEN Gang |
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| Affiliation: | ( Institute of Railway and Urban Mass Transit, Tongji University, Shanghai 201804, China ) |
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| Abstract: | The oscillatory differential equation of the car body was given with the principle of modal superposition by considering car body＇ s vertical elasticity, and mathematic model of a rigid-flex railway vehicle was established using MATLAB/Simulink. With this model, the influence on the vertical vibration characteristics of the elastic natural frequency, damping factor and the velocity was researched. Based on the analysis above, a new concept, ride-performance resonant wavelength, was proposed. The concept, which was proved to be one of the vehicle＇ s inherent features, can be the guideline and evaluation basis for the vehicle design and line maintenance. |
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| Keywords: | vibration and wave hybrid rigid-flex model modal superposition ride-performance resonant wavelength MATLAB/Simulink railway vehicle |
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