Characterization of control surface freeplay with nonstationary aerodynamic loading via the hilbert-huang transform

Michael Candon, Robert Carresey, Nish Joseph, Hideaki Ogawa, Pier Marzocca

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

Abstract

The Hilbert-Huang Transform is used to analyze the nonlinear aeroelastic response of a 2D 3DOF aeroelastic airfoil system with control surface freeplay under transonic flow conditions. Both static aerodynamic condition and dynamic aerodynamic condition, that is for accelerating freestream speed, are considered using a linearized aerodynamic model. The main aim of this paper is to provide physical insights as to the observed transition between periodic and aperiodic behavior, and the presence of a stable periodic region well below the region characterized by stable limit cycles. Physical insights towards this transition are presented by showing that multiple internal resonances exist. It is shown that the abrupt transition from aperiodic / chaotic to periodic behavior is a result of multiple internal resonances between linear and nonlinear modes. Initially a 2:1 IR between linear modes leads to a shift in the frequency composition and dynamic behavior of the system, then immediately a secondary 2:1 IR occurs between of linear and nonlinear modes which drives a stable periodic region.

Original languageEnglish
Title of host publicationAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Edition210049
ISBN (Print)9781624105326
DOIs
Publication statusPublished - Jan 1 2018
Externally publishedYes
EventAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018 - Kissimmee, United States
Duration: Jan 8 2018Jan 12 2018

Publication series

NameAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
Number210049

Conference

ConferenceAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
CountryUnited States
CityKissimmee
Period1/8/181/12/18

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Architecture

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  • Cite this

    Candon, M., Carresey, R., Joseph, N., Ogawa, H., & Marzocca, P. (2018). Characterization of control surface freeplay with nonstationary aerodynamic loading via the hilbert-huang transform. In AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials (210049 ed.). (AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018; No. 210049). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-0186