To provide a new aerodynamic sound reduction structure which enables reduction of aerodynamic sound occurring in a storage space provided at a bottom part of a vehicle body of a railway vehicle to store a truck.SOLUTION: An aerodynamic sound reduction structure reduces aerodynamic sound occurring in a storage space which is provided at a bottom part of a vehicle body of a railway vehicle to store a truck. The aerodynamic sound reduction structure includes protruding members each of which protrudes from a lower end of at least a front closing plate of front and rear closing plates covering a space of the bottom part of the vehicle body to the inner side of the storage space. In the protruding member, a lower surface does not protrude lower than a flat surface formed by a bottom cover which covers a space excluding the storage space of the vehicle body from below. Further, a protruding end is included in a curved surface which is a convex surface relative to the storage space.SELECTED DRAWING: Figure 2
【課題】台車を格納するために鉄道車両の車体の底部に設けられた格納空間において発生する空力音を低減させる、新規な空力音低減構造を提供する。【解決手段】台車を格納するために鉄道車両の車体の底部に設けられた格納空間において発生する空力音を低減させる、空力音低減構造であって、前記車体の前記底部の空間を覆う前後のふさぎ板のうち少なくとも前側のふさぎ板の下端から前記格納空間の内側に突出する凸部材を備え、前記凸部材は、下面が前記車体の前記格納空間以外の空間を下方から塞ぐように覆う底カバーのなす平面よりも下方に突出せず、突出端が前記格納空間に対して凸面である曲面に含まれることを特徴とする。【選択図】図2
AERODYNAMIC SOUND REDUCTION STRUCTURE
空力音低減構造
2024-09-20
Patent
Electronic Resource
Japanese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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