控制理论(社会学)
振动
终端滑动模式
解耦(概率)
振动控制
模糊逻辑
控制器(灌溉)
主动振动控制
流离失所(心理学)
工程类
执行机构
滑模控制
声学
计算机科学
控制工程
非线性系统
物理
人工智能
电气工程
生物
量子力学
心理学
心理治疗师
控制(管理)
农学
作者
Zhi-cheng Qiu,Si-ma Zhang
标识
DOI:10.1016/j.jsv.2016.06.002
摘要
A kind of non-contact vibration measurement method for a two-connected flexible piezoelectric plate using laser sensors is proposed. Decoupling of the bending and torsional vibration on measurement and driving control is carried out via using two laser displacement sensors and piezoelectric actuators. The fuzzy fast terminal sliding mode controller (FFTSMC) is investigated to suppress both the larger and the smaller amplitude vibrations quickly. In order to alleviate the chattering phenomenon and enhance the control effect, the fuzzy logic adaptive algorithm is used to adjust the switching control gain for softening the signum function adaptively. To verify the non-contact measurement method and the designed controller, the experimental setup is built up. Experiments on active vibration control using the designed FFTSMC are conducted, compared with the classical proportional derivative (PD) control algorithm. The experimental identification results demonstrate that the laser displacement sensors can detect the low-frequency bending and torsional vibration effectively, after using the decoupling method. Furthermore, the designed FFTSMC can suppress both bending and torsional vibration more quickly than the designed PD controller owing to the adjustment of the switching control gains and the softening factors, especially for the small amplitude residual vibrations.
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