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研究采用变刚度阻尼支承系统,实现挠性转子振动最优主动控制的一些理论问题。首先研究了在结构受迫振动最优主动控制规律的作用下,变刚度阻尼支承系统的动刚度子矩阵输出响应最优反馈矩阵的关系。由此可以确定转子的变刚度阻尼支承系统的各个动力学参数。然后,进一步分析了采用变刚度阻尼支承系统,实现振动最优主动控制的必要条件和有效频率范围。
In this paper, some theoretical problems of the optimal active control of flexible rotor vibration are studied by adopting variable stiffness damped bearing system. Firstly, under the action of the optimal active control law of forced vibration of structures, the relationship between the output stiffness and the optimal feedback matrix of dynamic stiffness sub-matrix of variable stiffness damping bearing system is studied. From this it is possible to determine the various dynamic parameters of the variable stiffness damping support system of the rotor. Then, the necessary conditions and the effective frequency range for the optimal active control of vibration are further analyzed with the variable stiffness damping bearing system.