上下動可能なノズルによるSESのクッション圧力変動の抑制

概要

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In this paper the variation of cushion pressure is investigated theoretically to achieve comfortable riding of SES. A simpler and practical control method is proposed to control cushion pressure changes arising from pumping phenomenon that appears in SES cruising over the waves. Cushion pressure is controlled by varying the discharge height of the vertical nozzle. In this method the nozzle height (hover height) is kept constant according with the motion of the craft. As the result of investigations, cushion pressures are successfully controlled by the proposed method. In addition, it is shown that the pressure variation depends not only hover height but also on rate of change of cushion volume. Therefore it is also necessary to consider phase difference between the motion of models and the vertical displacement of nozzles.
社団法人日本航空宇宙学会の論文
2009-08-05