风障对桥上高速列车气动特性影响的风洞试验OA北大核心CSCDCSTPCD
Experiment study on the effect of wind barrier on aerodynamic characteristics of high-speed train on bridge
为考虑侧风作用下风障对桥上高速列车气动特性的影响，以高速列车与双线简支箱梁桥为原型，自主研制了缩尺比为1：20的风障−车−桥模型风洞试验模型装置。测试高速列车的头车、中车及尾车各自的气动力。分析风速、列车位于桥梁的横向位置、不同风障高度与透风率、风偏角对高速列车气动系数的影响，最后以静力轮重减载率作为风障防风效果评价指标，给出风障气动选型参数建议值。研究结果表明：雷诺数对车−桥系统的气动性能影响有限；桥梁上设置风障可明显减小列车所受气动力；列车位…查看全部>>
In order to investigate the effects of wind barrier vehicle on the aerodynamic characteristics of a vehicle-bridge system under crosswind, a high-speed train model and simple support bridge with double lines were designed to measure the aerodynamic forces acting on the vehicles and bridge by a self-developed wind tunnel test model with a scale of 1:20. The aerodynamic force coefficients of head train, middle train, and rear train of high-speed train were tes…查看全部>>
张佳文;郭文华;熊安平;项超群;王嘉奇
中南大学土木工程学院，湖南长沙，410075中南大学土木工程学院，湖南长沙，410075 中南大学高速铁路建造技术国家工程实验室，湖南长沙，410075中南大学土木工程学院，湖南长沙，410075中南大学土木工程学院，湖南长沙，410075
建筑与水利
风障侧风高速列车风洞试验气动力系数高度透风率
wind barriercrosswindhigh-speed trainwind tunnel testaerodynamic force coefficientsheightventilation rate
《中南大学学报（自然科学版）》 2015 (10)
3888-3897,10
国家自然科学基金资助项目(51078356)；铁道部科技研究开发计划重大项目(2008G031-Q)(Project (51078356) supported by the National Natural Science Foundation of China Project (2008G031-Q) supported by the Major Project of Science and Technology Research and Development Plan of Ministry of Railway)
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