研究了在不可压缩流中具有立方非线性俯仰刚度的二元机翼的颤振问题。首先,对系统平衡点进行了特征值分析,得到在Hopf分岔点附近的颤振参数方程。然后,应用规范形直接法的M ap le推导程序,计算得到Hopf分岔的规范形,并数值模拟验证了超、亚临界类型分岔情形下响应对初值的依赖性。最后,分析了线性和非线性刚度系数对颤振响应拓扑结构的影响。
Investigation the two degree-of-freedom (DOF) wedge aeroelastic airfoil with combined freeplay and cubic nonli...
Demin Zhao Qichang ZhangDepartment of Mechanical Engineering, Tianjin University. Tianjin 300072. China State Key Laboratory of Engines, Tianjin University, Tianjin 300072. China
Investigation the two degree-of-freedom (DOF) wedge aeroelastic airfoil with combined freeplay and cubic nonli...
Demin Zhao Qichang ZhangDepartment of Mechanical Engineering, Tianjin University. Tianjin 300072. China State Key Laboratory of Engines, Tianjin University, Tianjin 300072. China
