Robust Multi-Objective aerostructural optimisation using advanced evolutionary algorithms

D. S. Lee, L. F. Gonzalez, J. Periaux, K. Srinivas

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

When designing an aircraft engineers are usually given a design or set of design points especially on operating conditions. In practice this is not usually the case that the aircraft will fly at off-design point at some instance. Even though single or multi-point optimisation produce optimal solutions at design point performance can decrease significantly at offdesign conditions. In this paper, a robust design concept is defined by two statistical sampling formulas mean and variance coupled to the optimization fitness/objective functions to produce solutions with high quality. This alternative design strategy is implemented for two practical test cases; the first case considers a Multi-Objective (MO) design optimization and the second considers a Multidisciplinary Design Optimisation (MDO) of an Unmanned Aerial System (UAS). The methodology couples an evolutionary optimiser and an uncertainty design technique to produce a set of useful Pareto non-dominated solutions. The method shows the benefits of using robust design technique for MO and MDO problems.

Original languageEnglish
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Place of PublicationOrlando, Florida
PublisherThe American Institute of Aeronautics and Astronautics (AIAA)
Pages1-14
Number of pages14
ISBN (Print)9781563479694
Publication statusPublished - 2009
Event47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: 5 Jan 20098 Jan 2009

Other

Other47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityOrlando, FL
Period5/01/098/01/09

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  • Cite this

    Lee, D. S., Gonzalez, L. F., Periaux, J., & Srinivas, K. (2009). Robust Multi-Objective aerostructural optimisation using advanced evolutionary algorithms. In 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition (pp. 1-14). [2009-0970] Orlando, Florida: The American Institute of Aeronautics and Astronautics (AIAA).