双方向の空力音低減を考慮したパンタグラフ舟支え部への多孔質材適用条件の検討

抄録

Reduction in aerodynamic noise emitted from a pantograph is an important subject for reducing environmental impact and speed-up of Shinkansen trains. In this study, applying condition, i.e. effective porous diameter and partial embedded domain, of porous material to pantograph head support considering bidirectional aerodynamic noise reduction was investigated. As a result, it is clarified that difference of diameter of porous cell does not affect aerodynamic noise reduction. Furthermore, partial embedded domain for porous material are proposed.