Flutter control using shape and topology optimization

Prateek Ranjan, Kai A. James

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


Aeroelastic flutter is one of the key limiting factors for the design of modern light-weight aircraft structures. Since the onset of flutter is a result of the interaction of aerodynamic forces and corresponding structural response, an optimal design configuration that mitigates such effects needs to be achieved using a multidisciplinary approach. We present a sequential flutter optimization framework with aero-structural design considerations. A binary flutter optimization routine results in maximum flutter speed with optimal location for the center of gravity and elastic axis, followed by an aerodynamic shape optimization at the corresponding critical flutter Reynolds number. In the final step of the optimization procedure, a materialbased topology optimization results in a lighter structure with respect to optimized outer mould line and optimal location of center of gravity and elastic axis.

Original languageEnglish (US)
Title of host publicationAIAA Aviation 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Number of pages11
ISBN (Print)9781624105890
StatePublished - 2019
EventAIAA Aviation 2019 Forum - Dallas, United States
Duration: Jun 17 2019Jun 21 2019

Publication series

NameAIAA Aviation 2019 Forum


ConferenceAIAA Aviation 2019 Forum
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Aerospace Engineering


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