大型風洞と小型風洞におけるパンタグラフ舟体の揚力・圧力分布の比較

抄録

In order to ensure good current collection quality for Shinkansen, it is important to maintain the lift force of a running pantograph within appropriate range. We usually investigate the lift force of pantograph using large- and small-scaled wind tunnels. The former enables us to test full-scale pantographs, but the costs tend to be high. On the other hand, although the latter costs less, only a limited part of pantograph can be installed due to the size limitation. It is necessary to take into account the differences in the flow field of the former and the latter ones. We therefore compare and investigate the measured pantograph lift force and the pressure distribution on the pantograph head surface in the large and the small wind tunnel.