The mathematical mod els based on the assumed modes method and a dosed loop velocity feed back control law are developed to describe the fiexural vibration dynamic behaviors 引入速度负反馈形成闭环控制，对被动控制和主被动控制的控制效果进行了分析比较。
2.
The mathematical models based on the assumed - modes method and a closed loop velocity feed - back control law are developed to describe the flexural vibration dynamic behaviors 引入速度负反馈形成闭环控制，对被动控制和主被动控制的控制效果进行了分析比较。
3.
Negative mode velocity feedback was adopted and the control voltage applied to each piezoelectric element acting as actuator was calculated to control the vibration of the beam 采用模态速度负反馈进行回馈控制，以此计算出各个作为致动器的压电片的控制电压，以抑制悬臂梁的振动。
