Active Vibration Control of Laminated Composite Plates Using Piezoelectric Devices: A Finite Element Approach
Active Vibration Control of Laminated Composite Plates Using Piezoelectric Devices: A Finite Element Approach
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DOI：
10.1177/1045389x9300400409
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发表时间：
1993-10
影响因子：
2.7
通讯作者：
K. Chandrashekhara;A. Agarwal
中科院分区：
文献类型：
--
作者：
K. Chandrashekhara;A. Agarwal
提出了一种用于模拟具有集成压电传感器和致动器的层合复合材料行为的有限元公式。该模型适用于连续和分段的压电元件，可以是表面粘结或嵌入层合板。该模型考虑了压电片的质量和刚度。该公式基于一阶剪切变形理论，适用于薄板和中厚板。本模型的另一个特征是它不引入电压作为附加的自由度。由传感器产生的电荷/电流和板对致动器电压的响应可以独立地计算。这些功能，然后再加上一个恒定的增益负速度/正位置反馈控制算法，以积极地控制在一个闭环板的瞬态响应。数值结果表明，增加阻尼的反馈增益的增加。研究了叠层顺序和边界条件对板受控瞬态响应的影响。
A finite element formulation is presented for modeling the behavior of laminated composites with integrated piezoelectric sensors and actuators. This model is valid for both con tinuous and segmented piezoelectric elements that can be either surface bonded or embedded in the laminated plate. The present model takes into account the mass and the stiffness of the piezoelectric patches. The formulation is based on the first-order shear deformation theory, which is applicable for both thin and moderately thick plates. An additional feature of the present model is that it does not introduce the voltage as an additional degree of freedom. The charge/current generated by the sensor and the response of the plate to an actuator voltage can be computed independently. These features are then coupled with a constant-gain negative-velocity/positive-position feedback control algorithm to actively control the transient response of the plate in a closed loop. Numerical results are presented which indicate the increase in damping as the feedback gain is increased. The in fluence of stacking sequence and boundary conditions on the controlled transient response of the plate is examined.