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

Aditi Chattopadhyay, Ratneshwar Jha, Charles Seeley

Research output: Contribution to conferencePaper

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)
DOIs
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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    Chattopadhyay, A., Jha, R., & Seeley, C. (1996). Application of hybrid optimization technique for improved aeroelastic performance of composite wings. Paper presented at 6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996, Bellevue, United States. https://doi.org/10.2514/6.1996-4015