Open AccessThe impact and sensitivity analysis of beam and stringer for stiffness center of composite wing structure
Author(s) -
Shengjun Qiao,
Rong Ma,
Jin Feng Jiao,
Xiangteng Ma,
Xin Liu
Publication year - 2021
Publication title -
revista internacional de métodos numéricos para cálculo y diseño en ingeniería
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 9
eISSN - 1886-158X
pISSN - 0213-1315
DOI - 10.23967/j.rimni.2021.09.009
Subject(s) - stringer , stiffness , structural engineering , wing , aeroelasticity , beam (structure) , center (category theory) , bending stiffness , composite number , materials science , engineering , composite material , aerospace engineering , aerodynamics , chemistry , crystallography
Wing stiffness center should be determined firstly for structure detail design. The present study focused on the impact analysis of beam and stringer for wing cross-section stiffness center based on thin wall structure mechanics theory. In order to discuss the impact of beam and stringer on stiffness center, the sensitivity formulas for stiffness center of wing cross-section were derived and expressed in terms of the dimension and layout of beams and stringers. The results indicated that the structural layouts of beam and stringer were important influencing factors in stiffness detail design of full composite wing structure. The research results can provide an important reference for the stiffness design and aeroelastic design of the full composite wing.