受电弓产生的空气动力噪声是高速列车主要噪声源之一,本文提出通过平滑弓头及其支撑座和在受电弓表面覆盖多孔材料来降低噪声的新方法。为评价这些技术总的降噪效果,将其应用在受电弓样机上,并对样机进行了风洞试验。试验结果表明,受电弓样机比现用低噪声受电弓的噪声级降低约4dB。 Aerodynamic noise generated by the pantograph is one of the main noise sources of high-speed trains. This paper presents a new method to reduce noise by smoothing the bow head and its supporting base and covering the pantograph with porous material. In order to evaluate the overall noise reduction effect of these techniques, this method was applied to a pantograph prototype and a wind tunnel test was performed on the prototype. The experimental results show that the pantograph prototype reduces the noise level by 4dB compared with the existing low-noise pantograph.