Abstract In this paper, a multi-disciplinary and multi-objective optimization (MDO–MOO) of a baseline over-wing-nacelle (OWN) concept design is presented. The present study extends the previous works, which considered only aerodynamic optimization, to include structural and mission design parameters. The competing objectives of minimum empty weight and minimum fuel weight for a design mission are considered in the multi-objective formulation as well as the single-objective problem of minimizing takeoff gross weight, one of many compromises possible for the multi-objective problem. An integrated computational environment has been implemented. High-fidelity analyses for the structural and aeroelastic assessment, together with middle-fidelity analyses for aerodynamic, mission, and performance analyses are performed. A complex multi-disciplinary analysis framework is proposed, to account for the interdisciplinary interaction and to provide a consistent computational framework. Optimization results with a Multi-objective Genetic Algorithm (MOGA) show Pareto frontiers accounting for structural, aeroelastic, and mission design constraints. The disciplines coupling is quantified, in terms of constraints, design variables influences, and possible trade-offs among the objectives.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Multi-disciplinary and multi-objective optimization of an over-wing-nacelle aircraft concept


    Contributors:

    Published in:

    CEAS Aeronautical Journal ; 10 , 3 ; 771-793


    Publication date :

    2018-11-27


    Size :

    23 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Multi-Disciplinary and Multi-Objective Optimization of an Unconventional Aircraft Concept (AIAA 2015-2327)

    Gemma, Stefania / Mastroddi, Franco | British Library Conference Proceedings | 2015


    Multi-Objective Wing Shape Optimization of an Elastically-Shaped Aircraft Concept

    Reynolds, K. / Nguyen, N. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013