Robust optimization of a helicopter rotor airfoil using multi-fidelity approach

A robust optimization technique is developed for the aerodynamic shape optimization of a helicopter rotor airfoil considering uncertain operating conditions. Both a CFD model and a coupled panel/integral boundary layer model of the aerodynamics are coupled with an optimization code based on Genetic Algorithms. In order to reduce the computational cost of the robust optimization, a multi-fidelity strategy is developed which employs both aerodynamic models inside the optimization loop.

[1]  Massimiliano Vasile,et al.  Robust design of a re-entry unmanned space vehicle by multi-fidelity evolution control , 2011, GECCO '11.

[2]  Roberto Celi,et al.  Recent Applications of Design Optimization to Rotorcraft-A Survey , 1999 .

[3]  Pietro Marco Congedo,et al.  Shape optimization of an airfoil in a BZT flow with multiple-source uncertainties , 2011 .

[4]  Jeroen A. S. Witteveen,et al.  Explicit Mesh Deformation Using Inverse Distance Weighting Interpolation , 2009 .

[5]  Robert Haimes,et al.  Multifidelity Optimization for Variable-Complexity Design , 2006 .

[6]  J. Gordon Leishman,et al.  Principles of Helicopter Aerodynamics , 2000 .

[7]  van der Wall,et al.  2nd HHC Aeroacoustic Rotor Test (HART II) - Part I: Test Documentation - , 2003 .

[8]  John E. Bussoletti,et al.  "Fundamental" Parameteric Geometry Representations for Aircraft Component Shapes , 2006 .

[9]  Michel van Tooren,et al.  Review of uncertainty-based multidisciplinary design optimization methods for aerospace vehicles , 2011 .

[10]  Ilan Kroo,et al.  Two-Level Multifidelity Design Optimization Studies for Supersonic Jets , 2005 .

[11]  William A. Crossley,et al.  Aerodynamic and Aeroacoustic Optimization of Rotorcraft Airfoils via a Parallel Genetic Algorithm , 2000 .

[12]  Ernesto Benini,et al.  Multi-Objective Optimization of Helicopter Airfoils Using Surrogate-Assisted Memetic Algorithms , 2012 .

[13]  Massimiliano Vasile,et al.  Robust Design of a Reentry Unmanned Space Vehicle by Multifidelity Evolution Control , 2013 .

[14]  V. Venkatakrishnan,et al.  IMPLICIT METHOD FOR THE COMPUTATION OF UNSTEADY FLOWS ON UNSTRUCTURED GRIDS , 1995 .

[15]  Bernhard Sendhoff,et al.  Robust Optimization - A Comprehensive Survey , 2007 .

[16]  Soogab Lee,et al.  Response surface approach to aerodynamic optimization design of helicopter rotor blade , 2005 .

[17]  M. Hafez,et al.  Frontiers of Computational Fluid Dynamics 2002 , 2001 .

[18]  M. Drela.  XFOIL: An Analysis and Design System for Low Reynolds Number Airfoils , 1989 .

[19]  Kalyanmoy Deb,et al.  Muiltiobjective Optimization Using Nondominated Sorting in Genetic Algorithms , 1994, Evolutionary Computation.

[20]  Bernhard Sendhoff,et al.  A framework for evolutionary optimization with approximate fitness functions , 2002, IEEE Trans. Evol. Comput..