机械制造与自动化2025，Vol.54Issue(3)：176-179,191,5.DOI:10.19344/j.cnki.issn1671-5276.2025.03.034
大型民用飞机非线性弹性载荷设计方法研究
Research on Nonlinear Elastic Load Design of Large Civil Aircraft
摘要
Abstract
Based on the actual engineering requirements in load design,a nonlinear static aeroelastic trimming analysis and load calculation method for civil large aircraft is developed.A civil aircraft is taken as an example to analyze the nonlinear static aeroelastic load of large deformation state,and the nonlinear trim analysis and load design results under different main beam stiffness are studied and compared.Research shows that there is a significant difference in the results of linear and nonlinear trim analysis under large deformation conditions,resulting in varying degrees of attack angles,structural deformation,and load distribution across the entire aircraft,which indicates that linear methods cannot accurately guide load design after significant structural deformation occurs.The comparison of the stiffness calculation results of different main beams on the shows that the elastic load calculation results are directly related to the stiffness of the wing main beam.The smaller the stiffness of the main beam,the greater the difference between linear and nonlinear trim results.关键词
民用飞机/非线性/气动弹性/载荷设计Key words
civil aircraft/nonlinear/aeroelastic/load design分类
航空航天引用本文复制引用
刘晓晨,谭林林..大型民用飞机非线性弹性载荷设计方法研究[J].机械制造与自动化,2025,54(3):176-179,191,5.
