航空工程进展2025，Vol.16Issue(2)：86-92,7.DOI:10.16615/j.cnki.1674-8190.2025.02.10
一种改进径向基函数插值法在气动载荷施加中的应用
A modified radial basis function interpolation method for aerodynamic load application
郑威 1熊俊 1刘剑 1季凯1
作者信息
- 1. 中电科芜湖通用航空产业技术研究院有限公司,芜湖 241000
- 折叠
摘要
Abstract
Aerodynamic loads are an important type of load in finite element analysis of aircraft structures.Due to the mismatch between the mesh used in computational fluid dynamics(CFD)and the one in structural analysis,and the load can be given in the form of a coordinate-pressure table,three-dimensional interpolation of the aerody-namic load input is often required before it can be applied to the structural mesh.A modified radial basis function in-terpolation method is proposed,where neighboring space of the interpolation point is distorted according to its nor-mal vector,thus reducing the interference of non-coplanar sampling points.Additionally,it enhances the algorithm efficiency by incorporating a KD tree data structure.This modified radial basis function interpolation method can ob-tain a load spectrum matching the structural mesh based only on the coordinate-pressure table.The feasibility of the method is demonstrated through interpolation of aerodynamic loads for two typical aircraft structures.The results show that the modified radial basis function interpolation method provides an effective means for accurately applying aerodynamic loads in the finite element analysis of aircraft structures,and has certain application value.关键词
径向基函数/三维插值/气动载荷/有限元分析/K维树Key words
radial basis function/3D interpolation/aerodynamic load/finite element analysis/KD tree引用本文复制引用
郑威,熊俊,刘剑,季凯..一种改进径向基函数插值法在气动载荷施加中的应用[J].航空工程进展,2025,16(2):86-92,7.
