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March 26, 2026The Proceedings of Mechanical Engineering Congress JapanOpen Access

Proposal and Numerical Validation of Passive Morphing Wing Mechanism for Small Unmanned Aerial Vehicle

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Authors

UKUzuki KOSHIORNRyota NONAMIKKKazuaki KATAGIRI

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Overview

Evaluates aerodynamic performance of a passive morphing wing in small UAVs, suggesting enhanced stability and efficiency.

Key Points

  • The aim is to design and validate a passive morphing wing that can mimic flap functionality without actuators.
  • Designed a passive wing structure using springs and stretchable materials.
  • Conducted FSI simulations at speeds of 2.8 m/s, 8.3 m/s, and 13.8 m/s.
  • Compared aerodynamic characteristics with conventional wing without flap mechanism.
  • At 2.8 m/s, the morphing wing had a higher lift coefficient than the conventional wing.
  • At 8.3 m/s, both lift and drag coefficients were slightly higher, with similar lift-to-drag ratios.
  • At 13.8 m/s, the drag coefficient decreased and the lift-to-drag ratio increased.
  • The morphing wing showed smaller fluctuations in lift coefficient, indicating better flight stability.

Cite This Study

KOSHIO et al. (2025) studied this question.

synapsesocial.com/papers/69c4cc75fdc3bde448917bd7https://doi.org/10.1299/jsmemecj.2025.j192p-03
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Adaptive Morphing Wing System for Unmanned Aerial Vehicles: Design, Prototype Development, and Experimental Aerodynamic Validation2026
  2. 2Structural Analysis and Experimental Tests of a Morphing-Flap Scaled Model2024 · 2 citations
  3. 3Structural Analysis and Experimental Tests of a Morphing Flap Scaled Model2024 · 3 citations
  4. 4A Fundamental Study on the Deformation Behavior of a Morphing Wing with Passive Leading- and Trailing-Edge Flaps2025
  5. 5Novel Airfoil Morphing Concept with Composite Material Skin2026