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 $+90/-{20}^{\circ }$ 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.

空气动力学表面的不连续性会导致显着的空气动力学损失，这可以通过顺应整流罩来避免。本文介绍了一种新颖的顺应性整流罩设计，以消除铰接翼尖等铰接空气动力学表面上存在的间隙。整流罩的设计目的是在铰链两侧的表面相对于彼此旋转时提供平滑、连续的形状变化。虽然这个概念通常适用于任何折叠表面，包括后缘襟翼，但这项工作的重点是将其应用于半气动弹性铰链 (SAH) 翼尖概念，它由一个铰接的外翼板组成流动。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，同时保持光滑和坚固的外部空气动力学表面。皮肤通过一种新型的枢轴肋解决方案附着在下面的关节结构上，减轻了皮肤在关节上的拉伤$+\mathrm{90后}/-{20}^{\circ }$关节的工作旋转范围。本文介绍了这个概念并激发了它背后的设计约束。提出了整流罩机构的简化分析模型，并探讨了改变设计变量的影响。结果表明，枢转肋骨优于固定肋骨，可最大程度地减少皮肤上的应变和关节的折叠刚度。提出了进一步的论点以强调需要更高保真度的模型来解释整流罩的几何和平面外变形效应。