Multi-objective/multidisciplinary design optimisation of blended wing body UAV via advanced evolutionary algorithms

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

14 Citations (Scopus)


Improvement of survivability is one of most important challenges in Unmanned (Combat) Aerial Vehicles (UCAV) and that can be achieved by well designed aerodynamic and Radar Cross Section (RCS) shapes. The aerodynamic efficiency aims to providing a short distance take-off, long endurance and better maneuverability. In addition, the stealth property is one of the essential requirements to complete diverse missions and ensure the survivability of UAVs. This paper explores the application of a robust Evolutionary Algorithm (EA) for aerofoil sections and wing plan form shape design and optimisation for the improvement of aerodynamic performance and the reduction of Radar Cross Section. The method is based on a canonical evolution strategy and incorporates the concepts of hierarchical topology, parallel computing and asynchronous evaluation. Results obtained from the optimisation show that utilising the designing transonic wing aerofoil sections and plan form in combination with evolutionary techniques improve the aerodynamic efficiency. It is shown that this optimisation procedure produced a set of shock-free aerofoils and achieved the supercritical aero-diamond wings. Results also indicate that the method is efficient and produces optimal and Pareto non-dominated solutions.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Place of PublicationReston, VA
PublisherAmerican Institute of Aeronautics and Astronautics
Number of pages21
ISBN (Print)1563478900, 9781563478901
Publication statusPublished - 2007
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: 8 Jan 200711 Jan 2007


Other45th AIAA Aerospace Sciences Meeting 2007
CountryUnited States
CityReno, NV

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