Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Global optimization based on metamodels using radial basis function with application to aircraft wings
Submission Author:
Nelson Diaz , MG , Brazil
Co-Authors:
Nelson Diaz, Nelson Manzanares Filho, Edna da Silva
Presenter: Nelson Diaz
doi://10.26678/ABCM.COBEM2017.COB17-0248
Abstract
This paper discusses the viability of using a metamodeling technique in conjunction with a Controlled Random Search Algorithm (CRSA) applied to aerodynamic wing design. CRSA is a stochastic algorithm capable of performing global optimization tasks efficiently. The proposed metamodel technique is based on the iterative construction of response surfaces and application of a robust search pattern. Some case studies are presented for testing the efficiency and robustness of the proposed methodology. These cases include the Dixon-Szegö test functions and an aerodynamic aircraft wing design application. Since the main objective of this paper is of prospective nature, a low-fidelity flow computation code solver for aerodynamic wing design was employed with bases on a first order 3D panel method and a boundary layer model. The main objective is the minimization of aerodynamic coefficient relations (CD/CL) and (1/CL) with a view to future use of high fidelity codes based on CFD.
Keywords
aerodynamic, Optimisation, wing, Boundary Layer
