The invention discloses a rudder blade with flow guide protrusions. A plurality of protruding guide plates (2) are arranged on the rear edge of the rudder blade, the protruding guide plates are symmetrically arranged in two rows on the two side faces of the rudder blade (1), and each row of protruding guide plates are evenly and discretely arranged along the rear edge of the rudder blade. In each row of raised guide plates, the distance between two adjacent raised guide plates is within the range of 600-800mm; the protruding flow guide plate is in a right triangle shape, one right-angle side of the protruding flow guide plate is fixedly connected with the rudder blade, and the other right-angle side of the protruding flow guide plate faces the rear edge of the rudder blade. The rear edge of the rudder blade is provided with a plurality of protruding flow guide plates, under the flow guide effect of the protruding flow guide plates, the vortex shedding effect of the rear edge of the rudder blade can interfere with each other to prevent the generation of a Karman vortex street, so that vortex-induced vibration is avoided, the uncontrollable condition in the ship traveling process is prevented, and the ship traveling safety is improved.
本发明公开了一种具有导流凸起的舵叶。在该舵叶的后缘处设置有众多的凸起导流板(2),所述众多的凸起导流板在舵叶(1)的两侧面上对称地布置成两列,每一列凸起导流板沿着舵叶的后缘均匀离散地布置;在每一列凸起导流板中,相邻的两个凸起导流板之间的间距在600~800mm范围内取值;所述凸起导流板为直角三角形,凸起导流板的一条直角边与舵叶固定连接,凸起导流板的另一条直角边朝向舵叶的后缘。舵叶的后缘处设置有众多的凸起导流板,在这些凸起导流板的导流作用下,舵叶后缘的涡流脱落作用会发生互相干扰,以阻碍卡门涡街的产生,从而避免导致涡激振动,防止船舶行驶过程中发生不可控的情况,提高了船舶行驶的安全性。
Rudder blade with flow guide protrusions
具有导流凸起的舵叶
2023-08-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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