Structural optimization of high speed prop rotors including aeroelastic stability constraints

Aditi Chattopadhyay, T. R. McCarthy, J. F. Madden

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

An optimization procedure is developed to address the problem of aeroelastic stability of high speed prop-rotor aircraft. A composite box beam is used as a perturbational stiffness model and the objective function to be minimized is the perturbational weight. An optimization algorithm, which used the method of feasible directions, is coupled with a hybrid approximate analysis to reduce the computational expense of exact analyses for every function evaluation. The results, compared to a reference rotor which is unstable in both hover and high speed cruise, show significant improvements in the aeroelastic stability without large weight penalties.

Original languageEnglish (US)
Pages (from-to)101-113
Number of pages13
JournalMathematical and Computer Modelling
Volume18
Issue number3-4
DOIs
StatePublished - Aug 1993

ASJC Scopus subject areas

  • Modeling and Simulation
  • Computer Science Applications

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