颤振是指弹性结构体系外部扰流的流线体诱发的自激振动。本文建立了单叶片系统的气弹耦合状态空间方程;对状态方程进行了数值分析,采用中心流形和规范型相结合的非线性分析方法对气弹耦合模型进行了稳定性分析,计算得出了霍普夫分岔的类型。 Flutter refers to the self-excited vibration induced by the streamline body outside the turbulence of the elastic structural system. In this paper, the state space equation of aeroelastic coupling in a single blade system is established. The numerical analysis of the state equation is carried out. The stability of the aeroelastic coupling model is analyzed by the nonlinear analysis method combining the central manifold and the canonical form. The type of Hopf bifurcation.