The invention discloses a paddle structure with a double-swept type appearance. The paddle structure comprises a double-swept type front edge girder, a step thickness type tailorable skin, a concentric-square-shaped anti-torsion beam, a U-shaped beam, a frequency modulation counterweight box assembly and a rear edge strip. The double-swept type front edge girder is laid at the front edge position in the spanwise direction of the paddle, forms a double-swept type along with the exterior of the paddle and is arranged at the root of the paddle; the stepped thickness type tailorable skin is located on the outermost side, the double-swept front edge girder, the concentric-square-shaped anti-torsion beam, the U-shaped beam and the rear edge strip are sequentially filled in the interior to form a whole, and the whole is distributed in the chordwise direction of the blade to divide the interior of the blade into four closed chambers. The frequency modulation counterweight box assembly is arranged at the top end of the forward swept section of the paddle, and a plurality of counterweight cavities are formed in the frequency modulation counterweight box assembly. The paddle structure can effectively meet the requirements of high strength and high torsional rigidity of the double-swept-type paddle, and is easy to manufacture, compact in structure, reasonable in force transmission path and stable in dynamic characteristic.
本发明公开了一种具有双掠式外形的桨叶结构,包括双掠式前缘大梁、阶梯厚度式可剪裁蒙皮、回型抗扭梁、U型梁、调频配重盒组件以及后缘条;所述双掠式前缘大梁沿桨叶展向铺设在前缘位置,随桨叶外形成双掠式,设置在桨叶根部;所述阶梯厚度式可剪裁蒙皮位于最外侧,双掠式前缘大梁、回型抗扭梁、U型梁和后缘条依次填充在内部,形成一个整体,并沿桨叶弦向分布将桨叶内部分成4个闭室;所述调频配重盒组件设置在桨叶前掠段顶端,内有多个配重空腔。该桨叶结构能够有效满足双掠式外形桨叶高强度、高扭转刚度的要求,且易制造、结构紧凑、传力路径合理、动力学特性稳定。
Blade structure with double-swept appearance
一种具有双掠式外形的桨叶结构
2023-02-03
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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