Abstract
A power collection system is one of the primary sources of Shinkansen's noise. Reduction of aerodynamic noise from pantographs has been addressed, for it is essential for increase of maximum speed of Shinkansen. In this article, we investigated the sound source of pantograph type PS207, with which train type E2-1000 is equipped, and we take measures to reduce of noise sources. We found that the narrow area on the base frame has been found to be a significant sound source as a result of exploration of the sources of the pantograph noise. To reduce the noise from that area, the lower arm was designed to be cantilevered. Additionally, a pantograph whose lower arm is covered with a windshield has also been developed, resulting in more effective noise reduction.
