Design principles for geometrically anisotropic thermoplastic rubber morphing aircraft skins
Design principles for geometrically anisotropic thermoplastic rubber morphing aircraft skins
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DOI：
10.1177/1045389x221096155
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发表时间：
2022-05-10
影响因子：
2.7
通讯作者：
Heeb, Rafael M.
中科院分区：
文献类型：
--
作者：
Woods, Benjamin K. S.;Heeb, Rafael M.
本文介绍了一种新的变形飞机蒙皮的设计概念，它结合了三个关键的设计原则来创建能够产生大变形的基于柔度的变形结构。这些蒙皮利用添加剂制造方法和不同硬度的热塑性弹性体，以实现刚性和柔顺性的战略性放置，利用几何各向异性和设计比例法则，在需要较低的面内刚度以减少驱动能量和需要较高的平面外刚度以抵抗空气动力载荷之间创造更好的折衷。首先介绍了这三个设计原则，然后探讨了基于这些原则的一系列不同变形组件的设计可能性。展示了最初的原型，并讨论了与制造、设计和集成相关的一系列考虑因素。最后，使用皮肤结构的低保真模型进行的多目标设计优化研究显示了该方法的一些潜在优势。
This paper introduces a new design concept for morphing aircraft skins which combines three key design principles to create compliance-based morphing structures that are capable of large morphing deformations. These skins take advantage of additive manufacturing methods and thermoplastic elastomers of different stiffnesses to allow for strategic placement of stiffness and compliance, taking advantage of geometric anisotropy and design scaling laws to create better compromises between the need for low in-plane stiffness to reduce actuation energy and high out-of-plane stiffness to resist aerodynamic loads. The three design principles are first introduced, after which design possibilities for a family of different morphing components based on these principles are explored. Initial prototypes are shown, and a range of considerations related to manufacturing, design, and integration are discussed. Finally a multiobjective design optimization study using low fidelity models of the skin structures shows some of the potential advantages of this approach.