Nonlinear Aeroelastic Analysis of Flexible Wings with High-Aspect-Ratio Considering Large Deflection
High Altitude Long Endurance (HALE) aircrafts exhibit aeroelastic behavior that is quite different from conventional vehicles.A nonlinear aeroelastic model is proposed in this paper.A geometrically exact nonlinear structural model for large deformations developed by Hodges and Dowell has been adopted,which coupled with the nonlinear aerodynamic model to obtain a nonlinear aeroelastic model.Mode summation techniques combined with Galerkins method are used to determine the governing equations of the problem.Within the analysis,both linear and nonlinear dynamic aeroelastic responses have been considered.The research examines the impact of in-plane degree of freedom on the stability of both zero trim states and nonzero trim states.The stability characteristics of these trim states are also ascertained.The effect of variation of system parameters on flutter boundary is also studied.
Z.FU J.LV Z.LIU
China Academy of Aerospace Aerodynamics, No.17 YUNGANG West Road, FENGTAI District, 100074, Beijing, P.R.China
国际会议
Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)
上海
英文
383-386
2013-08-01（万方平台首次上网日期，不代表论文的发表时间）