ArticleJournal of the Royal Society, Interface2021
Gull-inspired joint-driven wing morphing allows adaptive longitudinal flight control.
Article in Journal of the Royal Society, Interface, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Developing a Morphing Taxidermy of a Red-Tailed Hawk.Biomimetics (Basel, Switzerland) · 2026Article
- Rotational bistable mechanisms for morphing wings and beyond.Communications engineering · 2025Article
- Agile manoeuvrable flight via collaborative wing-tail adjustment of a flapping wing robot.Communications engineering · 2025Article
- Wing extension-flexion coupled aeroelastic effects improve avian gliding performance.Journal of the Royal Society, Interface · 2025Article
- Effect of Coupled Wing Motion on the Aerodynamic Performance during Different Flight Stages of Pigeon.Cyborg and bionic systems (Washington, D.C.) · 2025Article
- Agile perching maneuvers in birds and morphing-wing drones.Nature communications · 2024Article
- Characterization of Wing Kinematics by Decoupling Joint Movement in the Pigeon.Biomimetics (Basel, Switzerland) · 2024Article
- CGull: A Non-Flapping Bioinspired Composite Morphing Drone.Biomimetics (Basel, Switzerland) · 2024Article
- Joint extension speed dictates bio-inspired morphing trajectories for optimal longitudinal flight dynamics.Journal of the Royal Society, Interface · 2024Article
- Lessons from natural flight for aviation: then, now and tomorrow.The Journal of experimental biology · 2023Review
- On the role of tail in stability and energetic cost of bird flapping flight.Scientific reports · 2022Article
- Asymmetric Airfoil Morphing via Deep Reinforcement Learning.Biomimetics (Basel, Switzerland) · 2022Article
- Gull dynamic pitch stability is controlled by wing morphing.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Gull-inspired joint-driven wing morphing allows adaptive longitudinal flight control.Journal of the Royal Society, Interface · 2021Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Birds dynamically adapt to disparate flight behaviours and unpredictable environments by actively manipulating their skeletal joints to change their wing shape. This in-flight adaptability has inspired many unmanned aerial vehicle (UAV) wings, which predominately morph within a single geometric plane. By contrast, avian joint-driven wing morphing produces a diverse set of non-planar wing shapes. Here, we investigated if joint-driven wing morphing is desirable for UAVs by quantifying the longitudinal aerodynamic characteristics of gull-inspired wing-body configurations. We used a numerical lifting-line algorithm (MachUpX) to determine the aerodynamic loads across the range of motion of the elbow and wrist, which was validated with wind tunnel tests using three-dimensional printed wing-body models. We found that joint-driven wing morphing effectively controls lift, pitching moment and static margin, but other mechanisms are required to trim. Within the range of wing extension capability, specific paths of joint motion (trajectories) permit distinct longitudinal flight control strategies. We identified two unique trajectories that decoupled stability from lift and pitching moment generation. Further, extension along the trajectory inherent to the musculoskeletal linkage system produced the largest changes to the investigated aerodynamic properties. Collectively, our results show that gull-inspired joint-driven wing morphing allows adaptive longitudinal flight control and could promote multifunctional UAV designs.
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