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Multi-scale Least-Weight Design of a Wing-Box Through a Global/Local Modelling Approach

Author

Listed:
  • Enrico Panettieri

    (Université de Bordeaux)

  • Marco Montemurro

    (Université de Bordeaux)

  • Daniele Fanteria

    (Università di Pisa, Dipartimento di Ingegneria Civile e Industriale)

  • Francesco Coccia

    (Università di Pisa, Dipartimento di Ingegneria Civile e Industriale)

Abstract

In this work, a multi-scale optimization strategy for lightweight structures, based on a global-local modelling approach is presented. The approach is applied to a realistic wing structure of a civil aircraft. The preliminary design of the wing can be formulated as a constrained optimization problem, involving several requirements at the different scales of the structure. The proposed strategy is characterized by two main features. Firstly, the problem is formulated in the most general sense, by including all design variables involved at each problem scale. Secondly, two scales are considered: (i) the structure macroscopic scale, where low-fidelity numerical models are used; (ii) the structure mesoscopic scale (or component-level), where enhanced models are involved. In particular, the structural responses are evaluated at both global and local scales, avoiding the use of approximated analytical methods. To this end, fully parametric global and local finite element models are interfaced with an in-house genetic algorithm. Refined models are created only for the most critical regions of the structure, and linked to the global one by means of a dedicated sub-modelling approach.

Suggested Citation

  • Enrico Panettieri & Marco Montemurro & Daniele Fanteria & Francesco Coccia, 2020. "Multi-scale Least-Weight Design of a Wing-Box Through a Global/Local Modelling Approach," Journal of Optimization Theory and Applications, Springer, vol. 187(3), pages 776-799, December.
    • Handle: RePEc:spr:joptap:v:187:y:2020:i:3:d:10.1007_s10957-020-01693-y
    DOI: 10.1007/s10957-020-01693-y
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    References listed on IDEAS

    as
    1. Marco Montemurro & Anita Catapano, 2016. "A New Paradigm for the Optimum Design of Variable Angle Tow Laminates," Springer Optimization and Its Applications, in: Aldo Frediani & Bijan Mohammadi & Olivier Pironneau & Vittorio Cipolla (ed.), Variational Analysis and Aerospace Engineering, pages 375-400, Springer.
    2. Marco Montemurro & Angela Vincenti & Paolo Vannucci, 2012. "A Two-Level Procedure for the Global Optimum Design of Composite Modular Structures—Application to the Design of an Aircraft Wing," Journal of Optimization Theory and Applications, Springer, vol. 155(1), pages 24-53, October.
    3. Marco Montemurro & Angela Vincenti & Paolo Vannucci, 2012. "A Two-Level Procedure for the Global Optimum Design of Composite Modular Structures—Application to the Design of an Aircraft Wing," Journal of Optimization Theory and Applications, Springer, vol. 155(1), pages 1-23, October.
    4. Giulio Costa & Marco Montemurro & Jérôme Pailhès, 2018. "A General Hybrid Optimization Strategy for Curve Fitting in the Non-uniform Rational Basis Spline Framework," Journal of Optimization Theory and Applications, Springer, vol. 176(1), pages 225-251, January.
    Full references (including those not matched with items on IDEAS)

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