Initial exploration of a compliance-based morphing fairing concept for hinged aerodynamic surfaces
Initial exploration of a compliance-based morphing fairing concept for hinged aerodynamic surfaces
复制标题
铰接气动表面基于顺应性的变形整流罩概念的初步探索
DOI：
10.1016/j.ast.2023.108244
复制
发表时间：
2023
影响因子：
5.6
通讯作者：
Mahid N
中科院分区：
文献类型：
--
作者：
Mahid N
气动表面的不连续性会导致显著的空气动力学惩罚，这可以通过符合要求的整流罩来避免。本文介绍了一种新的柔顺整流罩设计，以消除铰链翼尖等铰链气动表面上存在的间隙。整流罩的设计目的是在铰链两侧的曲面相对于彼此旋转时，在它们之间提供平滑、连续的形状变化。虽然这一概念一般适用于任何折叠面，包括后缘襟翼，但本工作重点是将其应用于半气动弹性铰链(SAH)翼尖概念，该概念由安装在与来流成张角的铰链外部翼板组成。该设计旨在最大限度地减少蒙皮上的应变和整流罩的旋转刚度，同时保持平滑和坚固的外部空气动力表面。皮肤通过一种新型的枢转肋骨解决方案连接到底层关节结构上，该解决方案可缓解关节在+90/−20∘操作旋转范围内的皮肤应变。本文介绍了这一概念并对其背后的设计约束进行了分析。建立了整流罩机构的简化分析模型，探讨了设计变量的变化对整流罩机构性能的影响。结果表明，与固定肋骨相比，旋转肋骨在最大程度上减小了对皮肤的应变和关节的折叠刚度。进一步的论证是强调需要一个更高的保真度模型来考虑整流罩的几何和平面外变形影响。
Discontinuity on aerodynamic surfaces leads to notable aerodynamic penalties which could be avoided with compliant fairings. This paper introduces a novel design for a compliant fairing to eliminate the gaps present on hinged aerodynamic surfaces such as hinged wingtips. The fairing is designed to provide a smooth, continuous change in shape between the surfaces on either side of the hinge as they rotate relative to each other. While the concept is generally applicable to any folding surface, including trailing edge flaps, this work focuses on applying it to the Semi-Aeroelastic Hinge (SAH) wingtip concept, which consists of a hinged outer wing panel mounted at a flare angle to the incoming flow. The design aims to minimise the strain on the skin and the rotational stiffness of the fairing while maintaining a smooth and robust outer aerodynamic surface. The skin is attached to the underlying joint structure via a novel pivoting-rib solution which alleviates skin strains over the+ 90/− 20∘ operating rotation range of the joint. This paper introduces the concept and motivates the design constraints underlying it. A simplified analytical model of the fairing mechanism is presented and the effects of changing the design variables are explored. The results show the benefit of the pivoting ribs over fixed ribs in minimising the strain on the skin and the folding stiffness of the joint. Further arguments are drawn to emphasise the need for a higher fidelity model to account for the geometric and out-of-plane deformation effects of the fairing.
影响因子：
2.2
作者：
Cheung, Ronald C. M.;Rezgui, Djamel;Wilson, Thomas
通讯作者：
Wilson, Thomas
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
B. Woods;L. Parsons;A. B. Coles;J. Fincham;M. Friswell
通讯作者：
M. Friswell