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首页> 外文会议>IEEE Data Driven Control and Learning Systems Conference >Active Vibration Control of Piezoelectricity Cantilever Beam Using an Adaptive Feedforward Control Method
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Active Vibration Control of Piezoelectricity Cantilever Beam Using an Adaptive Feedforward Control Method

机译：采用自适应前馈控制方法的压电悬臂梁的主动振动控制

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This work is focused on the active vibration control of piezoelectric cantilever beam, where an adaptive feeedforward controller (AFC) is utilized to reject the vibration with unknown multiple frequencies. First, the experiment setup and its mathematical model are introduced. Because the channel between the disturbance and the vibration output is unknown in practice, a concept of equivalent input disturbance (EID) is used to put a equivalent disturbance into the input channel. In this situation, the vibration control can be realized by setting the control input be the identified EID. Then, for the disturbance with known frequencies, the AFC is introduced to reject the disturbance but is sensitive to the frequencies. In order to accurately identify the unknown frequencies of disturbance in presence of the random disturbances and un-modeled nonlinear dynamics, the time-frequency-analysis method is adopted to precisely identify the unknown frequencies of the disturbance. Finally, experiments results demonstrate the efficiency of the AFC algorithm.
机译：该工作专注于压电悬臂梁的主动振动控制，其中，利用自适应收费轴（AFC）来拒绝具有未知多个频率的振动。首先，介绍了实验设置及其数学模型。因为干扰与振动输出之间的频道在实践中未知，所以使用等效输入干扰（EID）的概念用于将等同的干扰放入输入通道。在这种情况下，可以通过将控制输入设置为识别的EID来实现振动控制。然后，为了用已知频率的干扰，引入AFC以拒绝干扰，但对频率敏感。为了在随机干扰的情况下准确地识别干扰的未知频率和未建模的非线性动力学，采用时频分析方法精确地识别干扰的未知频率。最后，实验结果证明了AFC算法的效率。

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