Imperial College London
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Rafael Palacios

Faculty of Engineering, Department of Aeronautics

Professor in Computational Aeroelasticity
 
 
 
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Contact

 

+44 (0)20 7594 5075r.palacios CV

 
 
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Location

 

338City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gomes:2020:10.1007/s00158-020-02600-9,
author = {Gomes, P and Palacios, R},
doi = {10.1007/s00158-020-02600-9},
journal = {Structural and Multidisciplinary Optimization: computer-aided optimal design of stressed solids and multidisciplinary systems},
pages = {2117--2130},
title = {Aerodynamic-driven topology optimization of compliant airfoils},
url = {http://dx.doi.org/10.1007/s00158-020-02600-9},
volume = {62},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A strategy for density-based topology optimization of fluid-structure interaction problems is proposed that deals with some shortcomings associated to non stiffness-based design. The goal is to improve the passive aerodynamic shape adaptation of highly compliant airfoils at multiple operating points. A two-step solution process is proposed that decouples global aeroelastic performance goals from the search of a solid-void topology on the structure. In the first step, a reference fully coupled fluid-structure problem is solved without explicitly penalizing non-discreteness in the resulting topology. A regularization step is then performed that solves an inverse design problem, akin to those in compliant mechanism design, which produces a discrete-topology structure with the same response to the fluid loads. Simulations are carried out with the multi-physics suite SU2, which includes Reynolds-averaged Navier-Stokes modeling of the fluid and hyper-elastic material behavior of the geometrically nonlinear structure. Gradient-based optimization is used with the exterior penalty method and a large-scale quasi-Newton unconstrained optimizer. Coupled aerostructural sensitivities are obtained via an algorithmic differentiation based coupled discrete adjoint solver. Numerical examples on a compliant aerofoil with performance objectives at two Mach numbers are presented.
AU  - Gomes,P
AU  - Palacios,R
DO  - 10.1007/s00158-020-02600-9
EP  - 2130
PY  - 2020///
SN  - 1615-147X
SP  - 2117
TI  - Aerodynamic-driven topology optimization of compliant airfoils
T2  - Structural and Multidisciplinary Optimization: computer-aided optimal design of stressed solids and multidisciplinary systems
UR  - http://dx.doi.org/10.1007/s00158-020-02600-9
UR  - http://hdl.handle.net/10044/1/78812
VL  - 62
ER  -
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