Reduction of aerodynamic noise emitted from pantograph by varying relative position of pantograph head and pantograph head support

Abstract

Reduction in aerodynamic noise emitted from a pantograph, especially pantograph head and its support, is an important subject for environmental preservation and speed-up of Shinkansen trains. In the present study, a suitable position arrangement of the pantograph head with smooth profile and through-holes for reducing wake turbulence and aerodynamic noise was investigated. As a result, it is clarified that the suitable position leads to reduce the wake turbulence and the aerodynamic noise drastically.