3307 高速用パンタグラフにおける空力干渉部の流れ場のCFD解析(SS1-1 高速化と空力現象,SS1 高度化,高速化,J-Rail 2006)

概要

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Recently, as the maximum speed of Shinkansen trains increases, many problems caused by aerodynamic characteristics occur. One of the most serious one is wayside noise generated from trains. Various measures were developed to reduce noise. As a result, aeroacoustic noise dominates wayside noise generated from train. A pantograph on the top of the train has already been known as a strong aeroacoustic noise source of the train. Some experimental results shows that aerodynamic interference between a panhead and an upper frame contributes to the aerodynamic noise. Therefore, investigation of the aerodynamic interference is important for wayside noise reduction. The aim of this study is to analyze flow field around the pantograph by CFD in order to clarify flow structure in the interference region.
社団法人日本機械学会の論文
2006-12-13