The invention provides a resistance reducing device for reducing additional damping of a moon pool at different ship speeds. The device comprises a moon pool, a baffle plate, an eddy current limiting plate, and an angle control device; the moon pool is a rectangular three-dimensional channel arranged in the middle of a ship body, and the bottom of the moon pool protrudes out of a ship bottom; the baffle plate is a rectangular flat plate with the length corresponding to the width of the moon pool, is mounted at the bottom of the moon pool through a rotating shaft and is positioned outside one side of a ship advancing direction, and the inclination angle of the baffle plate can be adjusted under the control of the rotating shaft; the eddy current limiting plate comprises two rectangular plates which are vertically and fixedly mounted at the two ends of the baffle plate in the length direction through side surfaces respectively; and the angle control device is connected with the rotating shaft through a connecting rod arranged at the moon pool so as to adjust the attack angle of the baffle plate relative to the moon pool according to different navigational speeds. According to the resistance reducing device for reducing the additional damping of the moon pool at different ship speeds of the invention, the direction of water flow entering the moon pool is changed through the baffle plate with adjustable inclination angles, so that the additional damping of the moon pool is minimized; and the rotation angle of the baffle plate can be adaptively adjusted according to the ship speeds through the angle control device, so that resistance reduction can be performed on the different navigation speeds of a ship.
本发明提供一种在不同船速下减少月池附加阻尼的减阻装置,包括:月池,为设置在船体中部的矩形立体通道,其底部凸出于船底;折流板,为长度与月池宽度对应的矩形平板,通过旋转轴安装在月池底部位于船前进方向一侧的外部,并可在旋转轴的控制下调整倾斜角度;涡流限流板,包括两块矩形板,分别通过侧面垂直固定安装在折流板长度方向的两端;角度控制装置,通过由月池处设置的连杆与旋转轴连接,以根据不同的航速调整折流板相对月池的攻角。本发明通过可调整倾斜角度的折流板,使进入月池的水流改变方向,从而使月池附加阻尼达到最小。通过角度控制装置可以根据船速的大小对折流板的旋转角度进行适应性调整,从而可对船舶不同航行速度进行减阻。
Resistance reducing device for reducing additional damping of moon pool at different ship speeds
一种在不同船速下减少月池附加阻尼的减阻装置
2021-07-09
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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