Analysis and control of FGM plates integrated with piezoelectric sensors and actuators using cell-based smoothed discrete shear gap method (CS-DSG3)
Analysis and control of FGM plates integrated with piezoelectric sensors and actuators using cell-based smoothed discrete shear gap method (CS-DSG3)
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DOI：
10.1016/j.compstruct.2017.01.006
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发表时间：
2017-04
影响因子：
6.3
通讯作者：
K. Nguyen-Quang;H. Dang-Trung;V. Ho-Huu;H. Luong-Van;T. Nguyen-Thoi
中科院分区：
文献类型：
--
作者：
K. Nguyen-Quang;H. Dang-Trung;V. Ho-Huu;H. Luong-Van;T. Nguyen-Thoi
基于一阶剪切变形理论，提出了一种基于单元的光滑离散剪切间隙法（CS-DSG3），用于Mindlin板的静动力分析。本文将CS-DSG3扩展到集成了压电传感器和执行器的功能梯度材料（FGM）板的分析和主动振动控制。在FGM压电板中，假定芯材的性能随厚度呈幂律分布梯度，假定电势随各压电子层厚度呈线性函数。采用基于位移和速度反馈的闭环控制算法控制FGM压电板的静挠度和主动振动。通过数值算例，与已有的数值计算结果进行了比较，验证了该方法的可靠性和准确性。
A cell-based smoothed discrete shear gap method (CS-DSG3) based on the first-order shear deformation theory was recently proposed for static and dynamics analyses of Mindlin plates. In this paper, the CS-DSG3 is extended for analysis and active vibration control of the functionally graded material (FGM) plates integrated with piezoelectric sensors and actuators. In the piezoelectric FGM plates, the properties of core material are assumed to be graded through the thickness by the power law distribution while the electric potential is assumed to be a linear function through the thickness of each piezoelectric sub-layer. A closed-loop control algorithm based on the displacement and velocity feedbacks is used to control static deflection and active vibration of piezoelectric FGM plates. Several numerical examples are conducted to demonstrate the reliability and accuracy of the proposed method compared to other available numerical results.