Application of hybrid optimization technique for improved aeroelastic performance of composite wings

Aditi Chattopadhyay, Ratneshwar Jha, Charles Seeley

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

1 Scopus citations

Abstract

A comprehensive procedure has been developed for aeroelastic optimization of composite wings. Wing structural weight is taken as the objective function with constraints on flutter/divergence speed and stresses at the wing root due to static load. Wing root chord, composite ply orientations and wall thickness are used as design variables. A hybrid optimization technique is implemented to simultaneously include continuous and discrete design variables. A refined higher-order theory is used to analyze composite box beam, which represents the load carrying member of the wing. Unsteady aerodynamic computations are performed using a panel code based on the Doublet Lattice Method and flutter/divergence speed is obtained by the V-g method. Numerical results are presented showing significant improvements, after optimization, compared to reference design.

Original languageEnglish (US)
Title of host publication6th Symposium on Multidisciplinary Analysis and Optimization
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - 1996
Event6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996 - Bellevue, United States
Duration: Sep 4 1996Sep 6 1996

Other

Other6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996
CountryUnited States
CityBellevue
Period9/4/969/6/96

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Chattopadhyay, A., Jha, R., & Seeley, C. (1996). Application of hybrid optimization technique for improved aeroelastic performance of composite wings. In 6th Symposium on Multidisciplinary Analysis and Optimization American Institute of Aeronautics and Astronautics Inc, AIAA.