振动鲁棒控制研究Ⅱ—仿真算例

李道奎;王 锋;雷勇军

振动与冲击 ›› 2009, Vol. 28 ›› Issue (11) : 173-176.

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PDF(2029 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (11) : 173-176.
论文

振动鲁棒控制研究Ⅱ—仿真算例

  • 李道奎;王 锋;雷勇军
作者信息 +

Uncertainty Modeling of Structural Dynamics for Robust Vibration Control

  • LI Dao-kui; WANG Feng; LEI Yong-jun
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文章历史 +

摘要

以柔性悬臂梁为对象,采用压电作动器和传感器,基于 控制理论设计鲁棒控制器,对梁进行振动控制。详细给出了控制器设计过程,包括模型参数误差,模型不确定性加权函数的选择以及性能加权函数的设计。对闭环系统进行了全面的仿真分析,在时域和频域对比了开环和闭环的性能,考察了参数摄动时闭环的鲁棒稳定性。分析结果验证了 控制理论用于结构振动控制的有效性。

Abstract

Vibration control is implemented to a flexible cantilever beam with piezoelectric sensor and actuator. The controller is designed using control theory. The design process is detailed, including the parameter errors of the model, the uncertainty weight functions and the performance weight functions. Simulations are carried out to made comparison between the closed system and the open system. And the robust stability of the closed system is also validated when the parameters of model are disturbed. The results verified that the control theory is effective on structural vibration control.

关键词

振动控制 / 鲁棒控制 / 悬臂梁 / 控制器设计

Key words

vibration control / robust control / uncertainty modeling

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导出引用
李道奎;王 锋;雷勇军. 振动鲁棒控制研究Ⅱ—仿真算例[J]. 振动与冲击, 2009, 28(11): 173-176
LI Dao-kui;WANG Feng;LEI Yong-jun. Uncertainty Modeling of Structural Dynamics for Robust Vibration Control[J]. Journal of Vibration and Shock, 2009, 28(11): 173-176

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