Open AccessResearch on flutter reliability of nonlinear binary-wing
Author(s) -
Jing Kui Li,
Yi Rui Qi,
Yun Kai Cheng
Publication year - 2020
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/715/1/012066
Subject(s) - flutter , aeroelasticity , nonlinear system , reliability (semiconductor) , aerodynamics , aerodynamic force , wing , control theory (sociology) , structural engineering , sensitivity (control systems) , mathematics , computer science , engineering , physics , aerospace engineering , power (physics) , control (management) , quantum mechanics , artificial intelligence , electronic engineering
In this paper, the aeroelastic analysis of the nonlinear binary wing model under unsteady aerodynamic conditions, the critical flutter speed was calculated by using the v-g method. Based on the critical flutter speed, the implicit limit state function of the nonlinear flutter reliability of the wing was obtained, and the response surface method was used for function fitting. The flutter reliability index was calculated by the checking point method, the design checking point and failure probability were obtained, and the flutter reliability sensitivity was analyzed. Finally, through the analysis of an example, it was proved that this method is feasible.