| ACTIVE VIBRATION CONTROL OF A CANTILEVER BEAM USING PIEZOELECTRIC SENSORS AND ACTUATORS |
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| 作者姓名： | Lu Xiaobo Tao Yungang He Yanwei |
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| 作者单位： | Lu Xiaobo Tao Yungang He Yanwei Department of Measurement and Testing Engineering，NUAA29 Yudao Street，Nanjing 210016，P. R. China |
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| 基金项目： | 国家自然科学基金,航空科学基金,江苏省青年科学基金 |
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| 摘 要： | 讨论了利用压电片作为传感器和驱动器对悬臂梁进行主动振动控制问题，针对模态频率差距较大的系统，提出了分组建模和控制的方法。使用滤波器消除观测溢出。文中还讨论了传感器／驱动器配置问题。实验结果验证了所述方法的有效性。
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| 关 键 词： | 振动 系统辨识 传感器 驱动器 压电材料 悬臂梁 |
ACTIVE VIBRATION CONTROL OF A CANTILEVER BEAM USING PIEZOELECTRIC SENSORS AND ACTUATORS |
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| Lu Xiaobo,Tao Yungang,He Yanwei.ACTIVE VIBRATION CONTROL OF A CANTILEVER BEAM USING PIEZOELECTRIC SENSORS AND ACTUATORS[J].Transactions of Nanjing University of Aeronautics & Astronautics,1997(1). |
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| Authors: | Lu Xiaobo Tao Yungang He Yanwei |
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| Institution: | Lu Xiaobo Tao Yungang He Yanwei Department of Measurement and Testing Engineering,NUAA29 Yudao Street,Nanjing 210016,P. R. China |
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| Abstract: | The topic of vibration control with distributed actuators has been the subject of many researches. This paper is concerned with the vibration control of a cantilever beam equipped with piezoelectric ceramics as sensors and actuators. One piezoelectric ceramic is bonded to the structure and provides control input for the structure, while the other piezoelectric ceramic provides the feedback signal. An approach to identification and control is presented. Observation spillover is eliminated by prefiltering the sensor data. A procedure used to determine actuator and sensor location, is discussed based on the modes to be controlled. Finally, the experimental results are presented to verify the proposed method. |
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| Keywords: | vibration system identification sensor actuator piezoelectric materials cantilever beam |
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