Dynamic Modeling and Bifurcation Analysis of Hypersonic Aircraft

Zhu Xin Huang; Ming Xia Fang; Wei Zhuo Quan

doi:10.4028/www.scientific.net/AMM.105-107.478

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107Dynamic Modeling and Bifurcation Analysis of...

Dynamic Modeling and Bifurcation Analysis of Hypersonic Aircraft

Abstract:

In this paper, the hypersonic aircraft model is divided into several substructures according to its structure and shape characteristics. Furthermore, the hysteresis nonlinearity of wing-fuselage connection which is caused by relaxation and friction is within consideration. The third-order piston theory and strip theory is employed to obtain the distribution of nonlinear aerodynamic force which is applied upon the wings. By means of free interface modal synthesis of dynamic substructure method, the nonlinear dynamic model of hypersonic aircraft is obtained. Then, through numerical simulation method, this paper researches on the model’s dynamic response and bifurcation characteristics, which is influenced by different hysteresis nonlinear structure parameters. In the end, it is showed that the parameter of hysteresis nonlinearity has a great impact on response and bifurcation characteristics of the system.

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Periodical:

Applied Mechanics and Materials (Volumes 105-107)

Pages:

478-482

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.105-107.478

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Online since:

September 2011

Authors:

Zhu Xin Huang, Ming Xia Fang, Wei Zhuo Quan

Keywords:

Bifurcation, Dynamic Substructure, Flutter, Hypersonic Aircraft

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References

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