Aerostructural level set topology optimization for a common research model wing

Peter D. Dunning, Bret K. Stanford, H. Alicia Kim

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

18 Citations (Scopus)

Abstract

The purpose of this work is to use level set topology optimization to improve the design of a representative wing box structure for the NASA common research model. The objective is to minimize the total compliance of the structure under aerodynamic and body force loading, where the aerodynamic loading is coupled to the structural deformation. A taxi bump case was also considered, where only body force loads were applied. The trim condition that aerodynamic lift must balance the total weight of the aircraft is enforced by allowing the root angle of attack to change. The level set optimization method is implemented on an unstructured three-dimensional grid, so that the method can optimize a wing box with arbitrary geometry. Fast matching and upwind schemes are developed for an unstructured grid, which make the level set method robust and efficient. The adjoint method is used to obtain the coupled shape sensitivities required to perform aerostructural optimization of the wing box structure.

Original languageEnglish
Title of host publication10th AIAA Multidisciplinary Design Optimization Conference
PublisherAIAA
Pages1-21
Number of pages21
ISBN (Electronic)978-1-62410-310-0
DOIs
Publication statusPublished - 10 Jan 2014
Event10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: 13 Jan 201417 Jan 2014

Conference

Conference10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014
Country/TerritoryUnited States
CityNational Harbor, MD
Period13/01/1417/01/14

Bibliographical note

This work is funded by the Fixed Wing project under NASA’s Fundamental Aeronautics Program. The authors would like to thank Dr. Maxwell Blair for his example DLM code and the Numerical Analysis Group at the Rutherford Appleton Laboratory for their FORTRAN HSL packages.

Keywords

  • Topology Optimisation
  • Angle of Attack
  • Aerodynamic Force
  • Semi Monocoque
  • Unstructured Grid
  • Courant Friedrichs Lewy
  • Wing Box Structure
  • Finite Element Analysis
  • Level Flight
  • Fast Marching Method

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