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Authors: Velda Basak Soydas, Larry D. Peel

DOI: 10.33599/nasampe/s.23.0060

Abstract: Engineering origami has inspired the development of a wide range of lightweight and compact space-based solar arrays and medical devices that offer improved functionality and performance. This development could be highly effective in the aerospace industry, where lightweight and aerodynamic designs are critical for the performance and efficiency of aircraft. Aerospace engineers have replicated a bird wing's dynamic sweeping motion in several sweeping-wing fighter aircraft. However, the wing structure required to sweep and transfer loads is heavy and takes considerable space and power, reducing payload capacity and aircraft performance. Previously, local researchers developed camber-morphing wings using flexible composites and rubber muscle actuators. The long-term objective is to develop an active sweeping wing using flexible composites, which can carry and re-direct aerodynamic loads in extended, partially swept, and entirely swept configurations. This preliminary work replaces mechanical parts with bio-inspired flexible hinges and compliant structures, sweeping the wing up to a 60° angle. An initial 2D mathematical model was developed, wherein the wing's thickness was considered negligible compared to its span. It was used to create a segmented rectangular folding wing platform. 3D CAD models of a rectangular wing were developed with flexible and compliant hinges and rigid sections. This design was 3D printed using a multi-material resin-based 3D printer and assessed for motion sustainability. The current preliminary work is only for a flat wing, but future work could expand it to a traditional wing cross-section using flexible composites. The preliminary study and follow-on work with a tapered wing, presented elsewhere, has great promise in bringing science, art, and biology together to solve challenging problems.

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Conference: SAMPE 2023

Publication Date: 2023/04/17

SKU: TP23-0000000060

Pages: 8

Price: $16.00

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