Transonic aeroelastic analysis including the effects of a nonlinear energy sink

D. Michael McFarland, Philip S. Beran, Young S. Lee, Lawrence A. Bergman, Alexander F. Vakakis

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

Abstract

The work reported herein focuses on the extension of a well-established computer program to include the interaction of a nonlinear energy sink (NES) with an aeroelastic structure. We consider an initially linear structure in transonic flow and seek a realistic representation of the air loads acting upon it. For aerodynamic computations in this seed range, we have adapted the CAPTSDv computer program. It is possible to use almost all of the machinery of this program, including the modal representation of the linear primary substructure, while incorporating the equations of motion of the nonlinear attachment and replacing the time integration algorithm with one suited to the resulting state equations. A simple primary structure, a rigid airfoil with its heave and pitch motions restrained by linear springs, was chosen for the first application of this modified code.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Pages3898-3905
Number of pages8
StatePublished - Aug 6 2007
Event48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Waikiki, HI, United States
Duration: Apr 23 2007Apr 26 2007

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume4
ISSN (Print)0273-4508

Other

Other48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
CountryUnited States
CityWaikiki, HI
Period4/23/074/26/07

ASJC Scopus subject areas

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

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