摘要
介绍高速列车受电弓在北京空气动力研究所FD 09低速风洞进行空气动力特性的测量结果。试件为实物,分原型弓和改型弓。试验时速为80～300km。测量结果表明,改型弓阻力较原型弓平均低19%,同时表明,弓头阻力占受电弓总气动阻力的14%～21%。因此,受电弓和弓头结构外形设计必须考虑气动性能。利用不同高度和斜度档板(围裙)方案,可以有效降低受电弓气动阻力和气动噪音,但列车总阻力将可能增加。
This paper introduces an aerodynamic characteristic measurements on pantographs of super express train in FD-09 Low Speed Wind Tunnel at BIA. The test models are real pantographs. They are original type and modified type. The airflow velocity ranged from 80 km/h to 300 km/h. The results indicate that the aerodynamic drag on the modified pantograph is about 19 percent lower than that on the original one, and it also shows that the drag on the collector head makes up 14-21 percent of the total aerodynamic drag of the pantograph. Therefore, when designing a pantograph and its collector head, we must pay much attention to their aerodynamic performance. The aerodynamic drag and noise on collector head can be effectively reduced by using baffle (apron) of different heights and inclinations, but this may bring the increase of total air resistance on the train itself.
出处
《流体力学实验与测量》
EI
CSCD
北大核心
2004年第1期53-56,共4页
Experiments and Measurements in Fluid Mechanics
关键词
高速列车
受电弓
气动力特性
测量
风洞试验
super express train
pantograph
aerodynamic characteristic
baffle plan (apron)
