PROBLEM TO BE SOLVED: To reduce noise due to wing tip vortex of a wing of a flap or the like.SOLUTION: A flap 3 of an aircraft comprises: a flap body 8 which is so provided as to be capable of being extended with respect to a main wing; a vortex generation part having a projection 5 which is so provided as to be projected on a top face 301 at an end 40 of at least an outer broadside OTB in a span direction D2 of the flap body 8 and has a specified angle with respect to an axial direction D1 of the aircraft. A rear end 52 of the projection 5 is positioned on a side proximate to a side end edge 301A at the end 40 of the flap body 8 in the span direction D2 with respect to a virtual line VL which passes a front end 51 of the projection 5 and is parallel to the axial direction D1.SELECTED DRAWING: Figure 5
【課題】フラップなどの翼の翼端渦に起因する騒音を低減すること。【解決手段】航空機のフラップ3は、母翼に対して展開可能に設けられるフラップ本体8と、フラップ本体8のスパン方向D2の少なくとも外舷側OTBの端部40における上面301に突設されていて、航空機の機軸方向D1に対して所定の角度をなす突出部材5を有する渦発生部とを備えている。突出部材5の前端51を通り機軸方向D1と平行な仮想線VLよりも、突出部材5の後端52が、フラップ本体8のスパン方向D2の端部40における側端縁301Aに近接する側に位置している。【選択図】図5
WING, FLAP AND AIRCRAFT
翼、フラップおよび航空機
2016-12-28
Patent
Elektronische Ressource
Japanisch
IPC: | B64C AEROPLANES , Flugzeuge |