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ISSN 2753-3239
ISSN 2753-3239
CCC: 9
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Edited by: P. Iványi, J. Kruis and B.H.V. Topping
Paper 3.2
Topology Optimization Method for High-Aspect-Ratio Wing Considering Geometrical Nonlinearity with Directional Length Scale Control
L. Song, Y. Li, Y. Huang, P. Fang, T. Gao and W. Zhang
School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, China
Full Bibliographic Reference for this paper
L. Song, Y. Li, Y. Huang, P. Fang, T. Gao, W. Zhang, "Topology Optimization Method for High-Aspect-Ratio Wing Considering Geometrical Nonlinearity with Directional Length Scale Control", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on
Computational Structures Technology", Civil-Comp Press, Edinburgh, UK,
Online volume: CCC 9, Paper 3.2, 2024, doi:10.4203/ccc.9.3.2
Keywords: topology optimization, high-aspect-ratio wing, geometric nonlinearity, directional length scale control, multiple materials, spar-ribs structural layout.
Abstract
The high-aspect-ratio wing, which is widely utilized in aircraft to achieve superior aerodynamic efficiency, frequently experiences large deformations during its service life. This work focuses on the topology optimization of the high-aspect-ratio wing using multiple materials considering geometric nonlinearity. To produce the spar-ribs structural layout, the directional length scale control is introduced by utilizing cylinder local search instead of conventional circle local search in the framework of the multi-material topology optimization. The Neo-Hookean hyperelastic model is utilized to characterize the behavior of the original material to alleviate the numerical difficulties caused by geometric nonlinearity. Finally, the high-aspect-ratio wing is optimized and the results demonstrate that the spar-ribs structural layout is achieved with the directional length scale control.
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