Work

Topology Optimization Method for High-Aspect-Ratio Wing Considering Geometrical Nonlinearity with Directional Length Scale Control

Year: 2024

Type: conference-paper

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 multimaterial 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.

Source: Civil-comp conferences

DOI: 10.4203/ccc.9.3.2

Authors: L. Song, Y. Li, Y. Huang, P. Fang, T. Gao, W. Zhang

Institution: Northwestern Polytechnical University

Language: English

Topic: Topology Optimization in Engineering

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: National Key Research and Development Program of China

Award: G4064153540