Actuation of an active Gurney flap for rotorcraft applications

Michael R. Thiel, George A. Lesieutre, Mark D. Maughmer, Gary H. Koopmann

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

17 Scopus citations

Abstract

The goal of this research is to design and test configurations for an actively-deployed Gurney flap with applications to rotorcraft. Previous research has shown that Gurney flaps can offer significant performance gains when correctly deployed, but actuation methods remain to be developed. Gurney flaps require less power to actuate than a standard flap due to smaller hinge moments, which should result in light weight actuation systems. High-frequency actuation methods have been investigated, and a concept employing a voice coil was developed. A mathematical model of this concept was developed to simulate dynamic performance and to ensure that the design could operate under the centrifugal (CF) loads experienced in a rotor blade. A prototype was built and preliminary bench testing was completed. This design met the required deflection and frequency requirements; however there were nonlinearities in the response that were not modeled. A new design involving the use of a piezoelectric bender augmented by CF loads is currently being developed and optimized. Preliminary results show that a CF-augmented bimorph may be a feasible actuation method for an active Gurney flap.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Subtitle of host publication14th AIAA/ASME/AHS Adaptive Structures Conference, 8th AIAA Non-deterministic App
Pages7006-7016
Number of pages11
StatePublished - Dec 1 2006
Event47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Newport, RI, United States
Duration: May 1 2006May 4 2006

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume10
ISSN (Print)0273-4508

Other

Other47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityNewport, RI
Period5/1/065/4/06

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All Science Journal Classification (ASJC) codes

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Thiel, M. R., Lesieutre, G. A., Maughmer, M. D., & Koopmann, G. H. (2006). Actuation of an active Gurney flap for rotorcraft applications. In Collection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference: 14th AIAA/ASME/AHS Adaptive Structures Conference, 8th AIAA Non-deterministic App (pp. 7006-7016). (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference; Vol. 10).