Nonlinear analysis of a 2-DOF piecewise linear aeroelastic system

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• 作者：Tamás Kalmár-Nagy ; Rudolf Csikja ; Tarek A. Elgohary
• 刊名：Nonlinear Dynamics
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：85
• 期：2
• 页码：739-750
• 全文大小：1,034 KB
• 刊物类别：Engineering
• 刊物主题：Vibration, Dynamical Systems and Control
  Mechanics
  Mechanical Engineering
  Automotive and Aerospace Engineering and Traffic
  
• 出版者：Springer Netherlands
• ISSN：1573-269X
• 卷排序：85

文摘

We study the dynamics of a two- degree-of-freedom (pitch and plunge) aeroelastic system where the aerodynamic forces are modeled as a piecewise linear function of the effective angle of attack. Stability and bifurcations of equilibria are analyzed. We find border collision and rapid bifurcations. Bifurcation diagrams of the system were calculated utilizing MATCONT and Mathematica. Chaotic behavior with intermittent switches about the two nontrivial equilibria was also observed.KeywordsAeroelasticityPiecewise linear systemLimit cycle oscillationBifurcationHybrid systemChaos