The invention relates to an aircraft support member aerodynamic profile. The present invention relates to a main rotor blade profile, and more particularly, to a profile of a blade end. The aircraft support member HRB-3 aerodynamic profile contains a profile of upper and lower areas. The thickness of the profile can be measured according to the ratio of the thickness of the maximum section to the chord percentage, and the thickness is 8-15%. The aerodynamic profile of the aircraft main rotor blade includes an upper surface and a lower surface, a contour formed by a convex curve and an intersection of the convex curve with a specified coordinate relative to a contour chord. The coordinates of the convex curve are measured from the center line of the section, and the upper coordinates are added and the lower coordinates are subtracted at the moment. The rotor blade aerodynamic profile designed according to the nature of the invention has acceptable bearing capacity and low profile resistance, and obviously higher quality. In addition to these advantages, the HH B3 profile has a more stable focal position when changing the Mach number, and also ensures that resistance is reduced at high Mach numbers.

    本发明涉及飞行器支承构件空气动力剖面。本发明涉及主旋翼桨叶剖面,更具体地来说,就涉及桨叶端部的剖面。飞行器支承构件НЦВ‑3空气动力剖面含有上与下面积的轮廓。以最大剖面厚度与弦百分之的比值,便可测定轮廓的厚度,为8至15%。飞行器主旋翼桨叶空气动力剖面包含上面及下面,由凸曲线及其与相对于轮廓弦的指定坐标的交点形成的轮廓。凸曲线的坐标是从剖面的中线测量的,此时要加上上面坐标,而减去下面坐标。根据本发明本质设计的旋翼桨叶空气动力剖面具有可接受的承载能力及低剖面阻力,以及明显更高的质量。除了这些优点之外,该НЦВ‑3剖面在改变马赫数时具有更稳定的焦点位置,并且还让保障在高马赫数时降低阻力。


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    Title :

    Aircraft support member aerodynamic profile


    Additional title:

    飞行器支承构件空气动力剖面


    Contributors:

    Publication date :

    2022-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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