动车组高速运行时,在落弓状态下受电弓受气流影响可能会被吹起,进而可能导致短接接触网故障。为评估落弓状态下受电弓的气动性能,保障受电弓的服役性能及安全高效运营,在兰州至乌鲁木齐客运专线搭载CRH2G动车组进行了大风条件下落弓状态的受电弓空气动力学试验研究。试验结果表明,受电弓受到的气动抬升力远小于落弓保持力,不存在由于气流作用而引起受电弓被动升弓危险。 When the EMU runs at high speed, the pantograph may fall off due to the airflow when falling over the bow, which may result in the short-circuit of the catenary. In order to assess the aerodynamic performance of the pantograph and the safe and efficient operation of the pantograph, the pantograph aerodynamics test of falling bow in high wind conditions was carried out on the CRH2G EMU equipped with the passenger line from Lanzhou to Urumqi the study. The experimental results show that the pneumatically induced lift of the pantograph is far less than that of the falling bow, and there is no danger of the pantograph being raised by the air flow.