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Nonlinear Flutter Characteristic Analysis of the Hypersonic Wings
LUO Qing;LI Dong-xu;NIE Hai-tao;ZHOU Yi;ZHANG Yi-ming
2012, 32 (3):
29-33.
DOI: 10.3969/j.issn.1006-1355.2012.03.007
The dynamic equation of a 2-dimentional hypersonic wing was derived by using the modified third order nonlinear piston theory. Both linear and nonlinear flutter boundary conditions were obtained through Hopf-bifurcation theory and directive numerical method respectively. The simulation results show that the effects of nonlinearities can delay or precede the appearance of limit cycles oscillations according to the system parameters.
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