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为了研究高速列车受电弓在较高速度下的整体气动特性、弓网接触压力以及受电弓对支持绝缘子的作用力等综合性能,在FD-09低速风洞中进行了测力试验。试验采用测力天平和力传感器进行测量。通过在FD-09风洞试验段内安装收缩地板的方式首次将受电弓试验风速提高到了380km/h,可以满足高速列车受电弓高速性能研究的需求。研究结果表明:受电弓相对列车运行方向对受电弓升力特性有显著的影响,对弓网接触压力也有较大的影响;通过调节导风板的角度可以有效控制弓网接触压力;受电弓对支持绝缘子的作用力表现为前面拉力后面压力。
In order to study the overall performance of high-speed train pantograph at higher speeds, the contact pressure of pantograph and the force of pantograph supporting insulators, a force test was carried out in FD-09 low speed wind tunnel. Test using force balance and force sensors to measure. The wind speed of the pantograph was increased to 380km / h for the first time by installing a retractable floor in the wind tunnel test section of FD-09, which can meet the demand of high-speed trains pantograph high speed performance research. The results show that: the pantograph relative to the train running direction has a significant effect on the pantograph lift characteristics, but also has a greater impact on the bow net contact pressure; by adjusting the angle of the deflector can effectively control the bow net contact pressure; The bow’s force on the supporting insulator is expressed as the pressure behind the front pulling force.