| 修改的预测控制方法在智能结构振动抑制中的应用 |
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| 引用本文： | 费红姿,王学孝,黄文虎. 修改的预测控制方法在智能结构振动抑制中的应用[J]. 中国机械工程, 2003, 14(18): 1545-1547 |
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| 作者姓名： | 费红姿 王学孝 黄文虎 |
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| 作者单位： | 1. 哈尔滨工业大学,哈尔滨市,150001
2. 哈尔滨工业大学航天工程与力学系 |
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| 摘 要： | 在输出预测控制的基础上，提出了一种修改的预测控制算法，即在预测时域内，使系统的控制输入不再保持不变，而是在一定的时域内可以线性改变，这样提高了控制的灵活性和系统的动态性能。将修改的预测控制算法应用于悬臂梁的振动控制。仿真结果表明，基于新的预测控制算法更加有效地抑制了柔性结构的振动。
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| 关 键 词： | 预测控制 智能结构 主动振动控制 柔性结构 |
| 文章编号： | 1004-132X(2003)18-1545-03 |
Application of Modified Predictive Control for Vibration Suppressing of Flexible Structure |
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| Fei Hongzi,Wang Xuexiaoi,Huang Wenhu Harbin Institute of Technology,Harbin,China. Application of Modified Predictive Control for Vibration Suppressing of Flexible Structure[J]. China Mechanical Engineering, 2003, 14(18): 1545-1547 |
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| Authors: | Fei Hongzi Wang Xuexiaoi Huang Wenhu Harbin Institute of Technology Harbin China |
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| Abstract: | A modified predictive control algorithmfor suppressing vibration of flexible structural system isdeveloped based on the state space model. Before thecontrol algorithm is modified, the predictive control in-puts are kept constant throughout the predictive horizonso that dynamic instability is induced to the control sys-tems. After the control algorithm is modified, the predic-tive control inputs are assigned to vary in the controlhorizon so that the control flexibility is improved. Andthe dynamic performance of the control systems is superi-or to that of the original one. The feasibility of the modi-fied control algorithm is verified through a smart struc-ture of a cantilever beam with surface mounted piezocer- camic. The simulation results have shown that the modi-fied predicative control is an effective method for the vi-bration suppression. |
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| Keywords: | predictive control smart structure active vibration control flexble structure |
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