| 不同侧偏角下跨坐式单轨列车侧向气动特性分析 |
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| 引用本文： | 杜子学,刘博.不同侧偏角下跨坐式单轨列车侧向气动特性分析[J].铁道机车车辆,2010,30(5):72-76. |
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| 作者姓名： | 杜子学 刘博 |
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| 作者单位： | 重庆交通大学,机电与汽车工程学院,重庆,400074 |
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| 基金项目： | 国家科技支撑计划项目 |
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| 摘 要： | 侧向气动特性在很大程度上影响着跨坐式单轨车的运行安全性。基于CFD方法对不同侧偏角影响下的某跨坐式单轨列车侧向气动特性进行模拟分析。通过比较分析不同方案下的侧向气动力计算结果及列车周围流场结构,得出随侧偏角的增加跨坐式单轨列车侧向气动力逐渐增大,头车受到的侧向力和侧倾力矩最大,因而侧风对头车的运行安全性影响最大的结论。
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| 关 键 词： | 跨坐式单轨车 侧向气动特性 数值模拟 侧倾力矩 |
Analysis on Lateral Aerodynamic Characteristics of Straddle-type Monorail Vehicle under Different Side Slip Angles |
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| DU Zi-xue,LIU Bo.Analysis on Lateral Aerodynamic Characteristics of Straddle-type Monorail Vehicle under Different Side Slip Angles[J].Railway Locomotive & Car,2010,30(5):72-76. |
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| Authors: | DU Zi-xue LIU Bo |
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| Institution: | (School of Mechanical-Electronic and Automobile Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | Running safety of straddle-type monorail vehicle is affected largely by lateral aerodynamic characteristics.Based on CFD method,lateral aerodynamic characteristics of monorail vehicle under different side slip angles are simulated and analyzed.By comparing calculation results of lateral aerodynamic characteristics under different programs and analyzing the structure of external flow field around monorail vehicle,the achievements can be concluded that lateral aerodynamics of straddle-type monorail vehicle is increasing with the increase of side slip angle,as lateral force and listed moment on the head car are the largest,running safety of the head is influenced mostly by the cross-wind. |
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| Keywords: | straddle-type monorail vehicle lateral aerodynamic characteristics numerical simulation listed moment |
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