| Active control of structural vibration by piezoelectric stack actuators |
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| 作者姓名： | 牛军川 赵国群 胡夏夏 |
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| 作者单位： | School of Mechanical Engineering，Shandong University，Jinan 250061，China，School of Material Science and Engineering，Shandong University，Jinan 250061，China，College of Mechanical and Electrical Engineering，Zhejiang University of Technology，Hangzhou 310014，China |
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| 摘 要： | INTRODUCTION Passive methods have played an important role for a long time (Snowdon, 1973; Nelson, 1982; Pan et al., 1992) in vibration and noise control. However, with inrush of some novel engineering structures and machines, such as super high-speed machine tools, long-span bridges, thin shell structures, micro elec- tromechanical systems and so on, traditional passive control approaches are not efficient enough for con- trolling structure noise and vibration from these novel systems an…
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| 关 键 词： | 压电激励 能量流 活动控制 柔性孤立系统 振动控制 |
| 收稿时间： | 2005-01-20 |
| 修稿时间： | 2005-04-10 |
Active control of structural vibration by piezoelectric stack actuators |
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| Niu Jun-chuan,Zhao Guo-qun,Hu Xia-xia.Active control of structural vibration by piezoelectric stack actuators[J].Journal of Zhejiang University Science,2005,6(9):974-979. |
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| Authors: | Niu Jun-chuan Zhao Guo-qun Hu Xia-xia |
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| Institution: | (1) School of Mechanical Engineering, Shandong University, 250061 Jinan, China;(2) School of Material Science and Engineering, Shandong University, 25006 Jinan, China;(3) College of Mechanical and Electrical Engineering, Zhejiang University of Technology, 310014 Hangzhou, China |
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| Abstract: | This paper presents a general analytical model of flexible isolation system for application to the installation of high-speed machines and lightweight structures. Piezoelectric stack actuators are employed in the model to achieve vibration control of flexible structures, and dynamic characteristics are also investigated. Mobility technique is used to derive the governing equations of the system. The power flow transmitted into the foundation is solved and considered as a cost function to achieve optimal control of vibration isolation. Some numerical simulations revealed that the analytical model is effective as piezoelectric stack actuators can achieve substantial vibration attenuation by selecting proper value of the input voltage. |
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| Keywords: | Piezoelectric actuator Power flow Active control |
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