【摘要】 研究挠性转子轴承系统在多频激励力的作用下，电磁阻尼器控制系统的设计方法。首先在物理空间下建立了系统多频受迫振动的基本方程；然后，采用信号处理和计算机控制技术，提出了多频振动主动控制规律；并用实验加以验证。结果表明：本文所设计的控制器，具有控制效果明显、稳定性好以及控制算法易在微机上实现等优点．更多还原

【Abstract】 In order to control the vibration of a nexible rotor bearing system subject to multi-frequence forces,the design method of a digital control is studied for a magnetic damper.Firstly,the basic vibration equations of the rotor-bearing-damper system are established.Then using the signal processing and microcomputer control techniques,a phase control law is presented to control the multi-frequence vibrations of rotors actively.Finally,the efficiency of the proposed method is verified experimentally.The results obtained indicates that the controller designed in the paper has the advantages of good stability and outstanding control effect on rotor vibrations.更多还原