【摘要】 我国对列车气动阻力的研究主要考虑列车的头型、断面形状和底部外形等方面,在受电弓减阻方面也主要是考虑受电弓的结构外形,然而对于受电弓减阻的风洞试验研究比较少。为了获得某高速列车的空气动力特性,并考察受电弓各种减阻措施的效果,在中国空气动力研究与发展中心低速空气动力研究所的8 m×6 m风洞中进行了列车模型的风洞试验,在风洞试验中通过在受电弓前部安装各种导流罩和风挡来测试其对受电弓阻力的影响。试验结果表明:受电弓的存在会对列车的气动阻力有约3.2%的增加;在头车尾部安装反向导流罩能有效的降低受电弓的气动阻力;在受电弓前部安装风挡,这种风挡在侧偏角为0°时对受电弓的减阻有一定效果。更多还原

【Abstract】 The train’s head type,cross-section shape,bottom profile and so on were considered in research of aerodynamic drag,and the shape of pantograph was also considered in study of pantograph’s drag reduction.However,research of wind tunnel test of pantograph’s drag reduction has been poorly studied.In order to obtain the aerodynamic characteristics of high-speed train and investigate effects of different measures of resistance reduction,the wind tunnel test of train model in the 8m×6m wind tunnel in low-speed aerodynamic institute of China Aerodynamics Research & Development Center was conducted.The influence of pantograph’ resistance was test by installing kinds of domes and windscreens in the wind tunnel.The results show that: pantograph increases the train’s aerodynamic drag around of 3.2%;it will effectively decrease pantograph’s aerodynamic drag that contra-bossing is installed at the tail of head car;there is some effect of pantograph’s drag reduction when windshield was installed at the head of pantograph and the side slip angle of windshield is 0°.更多还原