3303 舟体と枠組の空力干渉緩和構造による実機パンタグラフの空力音低減効果(SS1-1 高速化と空力現象,SS1 高度化,高速化,J-Rail 2006)

概要

論文の詳細を見る
Since a panhead has been known as a main aerodynamic noise source of a pantograph on a high-speed train, reduction of its aerodynamic noise has been extensively studied. However, modification of the panhead shape to reduce its aerodynamic noise often has a small effect on the reduction of the whole pantograph aerodynamic noise. By some wind tunnel tests, aerodynamic interference between the panhead and the pantograph frame proved to have a large influence upon the aerodynamic noise of the pantograph. This result indicates that not only modification of the panhead shape but also improvement of the pantograph supporting structure is necessary for sufficient aerodynamic noise reduction of the pantograph. In this paper, effect of aerodynamic noise reduction on an actual pantograph by decrease in aerodynamic interference between the panhead and the pantograph frame are discussed on the basis of experimental results by using the actual low-noise pantograph.
一般社団法人日本機械学会の論文
2006-12-13