An experimental and analytical study of a flow vectoring airfoil via macro-fiber-composite actuators

Onur Bilgen, Kevin B. Kochersberger, Daniel J. Inman

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

5 Scopus citations

Abstract

A type of piezoceramic composite actuator commonly known as Macro-Fiber-Composite (MFC) is used for actuation in a variable camber airfoil design. The study focuses on aerodynamic and kinematical modeling, and static response characterization under aerodynamic loads for three similar concepts. From a broader perspective, the study aims to understand the behavior of solid-state aerodynamic vectoring in high dynamic pressure air flow. Wind tunnel experiments and theoretical analysis is conducted on a 1.15% thick, 54 mm chord, and 108 mm span composite airfoil. The airfoil is fabricated from a fiberglass/epoxy composite material and actuated by six MFC actuators in a unimorph arrangement. Three support concepts are studied: 1) Airfoil hinged at its leading edge and at 50% chord; 2) Airfoil hinged at its leading edge the trailing edge; 3) Clamped-free airfoil. Wind tunnel results and XFOIL studies of the airfoil show comparable effectiveness to conventional actuation systems. Deformation of the airfoils due to pressure distribution is studied by finite element method. All concepts present adequate stiffness for flow speeds up to 30 m/s.

Original languageEnglish (US)
Title of host publicationIndustrial and Commercial Applications of Smart Structures Technologies 2008
DOIs
StatePublished - Jun 17 2008
Externally publishedYes
EventIndustrial and Commercial Applications of Smart Structures Technologies 2008 - San Diego, CA, United States
Duration: Mar 10 2008Mar 11 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6930
ISSN (Print)0277-786X

Other

OtherIndustrial and Commercial Applications of Smart Structures Technologies 2008
CountryUnited States
CitySan Diego, CA
Period3/10/083/11/08

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All Science Journal Classification (ASJC) codes

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

Keywords

  • Flow vectoring
  • MFC
  • Smart structures
  • Unimorph actuator
  • Variable camber airfoil

Cite this

Bilgen, O., Kochersberger, K. B., & Inman, D. J. (2008). An experimental and analytical study of a flow vectoring airfoil via macro-fiber-composite actuators. In Industrial and Commercial Applications of Smart Structures Technologies 2008 [69300O] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6930). https://doi.org/10.1117/12.776448