高速铁路用空气动力制动装置的开发  

Development of Aerodynamic Brake Device for High-speed Railway

作　　者： 岳枰屹(译) 李培署(校) 

机构地区：[1]不详

出　　处：《国外铁道车辆》2021年第4期9-14,共6页Foreign Rolling Stock

摘　　要：为缩短高速列车在紧急制动时的停车距离,研制出一种小型化、轻量化的空气动力制动装置。为了检测其空气动力特性,在风洞设施中以400 km/h的最高流速对全尺寸原型装置进行了试验。试验结果表明,装置展开的响应时间只有0.39 s,原型装置每个单元能够产生2.3 kN的气动阻力。此外,利用计算流体动力学(CFD)对性能进行了计算。对设有大量设备的车顶周围进行CFD分析,结果表明交错布置的装置与标准平行布置的相比,总阻力可增加10%。To shorten stopping distances of high-speed trains in case of emergency braking,a small,light-weight aerodynamic braking device was developed.To examine its aerodynamic characteristics,a full-scale prototype was tested in a wind tunnel facility at a maximum flow speed of 400 km/h.Tests confirmed that the response time for deployment of the device was only 0.39 s,and that the prototype was able to produce an aerodynamic drag force of 2.3 kN per unit.In addition,performance was calculated using computational fluid dynamics(CFD).The result of the CFD analysis around a train roof with a large number of devices showed that the staggered arrangement of the devices could increase the total drag force by 10 percent compared to the standard parallel arrangement.

关 键 词：高速列车 空气动力制动 空气阻力 阻力 日本 

分 类 号：U270.35[机械工程—车辆工程]