Dynamic characterization of a bio-inspired variable stiffness multi-winglet device

Kyung Jun Lee, Aimy Wissa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Researchers incorporated adaptive wingtip devices in UAVs and full-scale aircraft to improve aerodynamic efficiency and to act as control effectors. However, these devices had been characterized statically, where their dynamic response was ignored. This paper characterizes the deployment dynamics of a novel adaptive multi-winglet (AMW) device. Each winglet in AMW is a feather-inspired composite exhibiting bending-torsion coupling. The gap spacing between each winglet is controlled by SMAs to vary the effective stiffness of AMW. Wind tunnel experiment's results show the aerodynamic forces and moments produced by a wing with an AMW device with different gap spacing under different flight conditions.

Original languageEnglish (US)
Title of host publicationBehavior and Mechanics of Multifunctional Materials XIV
EditorsRyan L. Harne
PublisherSPIE
ISBN (Electronic)9781510635319
DOIs
StatePublished - 2020
EventBehavior and Mechanics of Multifunctional Materials XIV 2020 - None, United States
Duration: Apr 27 2020May 8 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11377
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceBehavior and Mechanics of Multifunctional Materials XIV 2020
CountryUnited States
CityNone
Period4/27/205/8/20

Keywords

  • Adaptive
  • Morphing
  • Winglet
  • Wingtip

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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