Aeroelasticity & Structural Dynamics in a Fast Changing World
17 – 21 June 2024, The Hague, The Netherlands
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Efficient and high-precision nonlinear static aeroelastic load analysis method based on vortex lattice method acceleration


Go-down ifasd2024 Tracking Number 68

Presentation:
Session: Low/high order methods 2
Room: Room 1.6
Session start: 11:00 Thu 20 Jun 2024

Zou Zhicheng   zouzhicheng@buaa.edu.cn
Affifliation:

Xie Changchuan   xiechangc@buaa.edu.cn
Affifliation:

An Chao   ac@buaa.edu.cn
Affifliation:

Yang Lan   yanglan1105@sina.cn
Affifliation:

Zhu Lipeng   buaazhulipeng@163.com
Affifliation:

Ni Zao   nizao@comac.cc
Affifliation:


Topics: - Computational Aeroelasticity (High and low fidelity (un)coupled analysis methods:)

Abstract:

High-precision CFD/CSD coupling aeroelastic load analysis is an effective way to solve the nonlinear aeroelastic problem of flexible wings. In order to improve calculation efficiency while ensuring calculation accuracy, a nonlinear static aeroelastic load analysis method accelerated by vortex lattice method is proposed in this article. Vortex lattice method is adopted to achieve a faster convergence both in the iteration of static aeroelastic analysis and trimming process. An RBF-based mesh deformation tool with greedy algorithm is used to realize fast and accurate mesh deformation during the iterations. The numerical model of a commercial aircraft with very flexible wing is investigated by the traditional aeroelastic load analysis method and the accelerated method. Compared with the traditional method. The proposed accelerated method can significantly improve the calculation efficiency while ensuring the high precision.