Surrogate-based aerodynamics for composite wing box sizing

Marco Tito Bordogna, Dimitri Bettebghor, Christophe Blondeau, Roeland De Breuker

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
34 Downloads (Pure)

Abstract

The main objective of this paper is to propose an aeroelastic optimization approach capable of performing structural sizing optimization considering structural and aerodynamic constraints. The proposed approach uses a detailed FE model of a composite wing with shell elements in order to obtain realistic weight estimation and structural responses. Moreover, a surrogate model based on rigid RANS computations provides a high-fidelity lift and drag coefficient estimation during the optimization as constraints. The use of RANS computations allows the surrogate model to consider all drag components and not the induced drag only. An approximation of the structural displacement is proposed based on modal projection and principle component analysis. Results shows that a polynomial regression of order four is accurate enough to be used as surrogate model of the drag coefficient and of the lift-to-drag ratio. Moreover, it is possible to conclude that improvements in aerodynamic performance comes at the price of a heavier and stiffer structure.

Original languageEnglish
Title of host publication17th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2017
PublisherInternational Forum on Aeroelasticity and Structural Dynamics (IFASD)
Number of pages20
Volume2017-June
ISBN (Electronic)9788897576280
Publication statusPublished - 1 Jan 2017
Event17th International Forum on Aeroelasticity and Structural Dynamics - Como, Italy
Duration: 25 Jun 201728 Jun 2017
Conference number: 17
http://congressi.fondazionealessandrovolta.it/ifasd2017/

Conference

Conference17th International Forum on Aeroelasticity and Structural Dynamics
Abbreviated titleIFASD 2017
CountryItaly
CityComo
Period25/06/1728/06/17
Internet address

Keywords

  • Aerodynamics
  • Aeroelasticity
  • Composite
  • Optimization
  • Surrogate

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