Influence of Bogie Components on Aerodynamic Bogie Noise Generated from Shinkansen Trains

Abstract

Aerodynamic bogie noise generated from Shinkansen trains is the main source of the noise when they are running at above 300 km/h and noise reduction is important for preserving the quality of the environment around railway lines. In order to reduce bogie noise effectively, it is important to evaluate the contribution of the bogie components to the aerodynamic bogie noise. The purpose of this paper is to estimate their contributions at the measurement point close to the track by a wind tunnel test. Both the noise contribution of each component and the measures to reduce the aerodynamic noise are investigated by arranging the component in the bogie model.