Open AccessVibration analysis of composite wing with geometric and material coupling
Author(s) -
Ahmed Magdy,
Mohamed A. Kamel,
M. Adnan Elshafei,
M. E. Kassem
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1172/1/012003
Subject(s) - wing , composite number , vibration , structural engineering , torsion (gastropod) , matlab , parametric statistics , flutter , rigidity (electromagnetism) , flexural rigidity , coupling (piping) , engineering , computer science , mechanics , materials science , physics , mathematics , mechanical engineering , acoustics , aerodynamics , composite material , medicine , statistics , surgery , operating system
Composite wing design is complicated but inevitable to enlighten modern airplanes while maintaining the required performance. Using the dynamic transfer method, this paper discusses intensively the dynamic characteristics of a cantilever composite wing with both torsion and bending coupling to represent both material and geometric coupling. The governing differential equations are obtained based upon the principle of Hamilton and are solved analytically using a harmonic oscillation assumption. For this purpose, a MATLAB code is developed and results are validated in comparison with published work. Such a comparison shows a good agreement between both results. Finally, a parametric study is carried out to show the influence of the variation of both geometric coupling and torsion bending coupling rigidity on the free vibration analysis of the composite wing. The study shows the crucial effect of both factors on the dynamic behavior of the composite wing. The current research can be considered as a base for aeroelasticians while designing composite structures.