抗侧风车体截面设计  

The innovative design of the High speed train car body section with anticrosswind

作　　者：胡光忠[1] 徐新建[1] 肖守讷[2] 蒲凡[1] 邹亮[1] 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]西南交通大学牵引动力实验室,四川成都610031

出　　处：《河南理工大学学报（自然科学版）》2017年第5期72-77,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(51275432);四川理工学院人才引进项目(2012RC19);四川理工学院研究生创新基金资助项目(y2016002)

摘　　要：为有效降低强侧风作用下高速列车脱轨、倾覆的可能性,在现有速度大于200 km/h机车上部限界、车内设备布置的人机工程学原理的前提下,基于流体力学原理以及高速列车抗侧风能力分析,设计了一种更能抵抗强侧风作用力的车体截面。基于有限体积法的CFD软件,利用二维定常不可压缩流动N-S方程的SIMPLE算法和k-ε双方程湍流模型,对我国CRH2,CRH3,CRH5等3种高速列车及新设计车体在25 m/s风速环境下进行了气动性能模拟。结果表明,设计车体倾覆力矩相比我国3种高速列车在相同强侧风作用下倾覆力矩有明显下降,设计车体抵抗侧风的能力优于我国上述3种高速列车。In order to effectively reduce the possibility of high-speed train derailment and overturning under strong cross wind, and according to the principle of fluid mechanics and the analysis experience about the re- sistance ability of the high speed train under cross wind,train body section with a better resistance ability of cross wind was innovatively designed based on the existing train top limit and ergonomics principle of interior layout whose speed is greater than 200 km/h. The aerodynamic performance under the 25 m/s crosswind to the high speed train CRH2,CRH3, CRH5 and innovatively design car body were simulated which were based on the finite volume method and CFD software, using simple arithmetic and k-εequation turbulence model of the two dimensional steady incompressible flow N-S equations. Comparing with that three kinds of high-speed trains, the results show that the overturning moment of the innovatively design car body was decreased obviously and the resistance ability of crosswind was better than that of the above three kinds of high-speed trains.

关 键 词：高速列车 人机工程 抗侧风车体 有限体积法 

分 类 号：U467.13[机械工程—车辆工程]