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本文针对板壳型自适应结构 ,研究了压电材料作为作动器的自适应结构的振动控制。利用四节点压电复合材料层合板单元进行自适应结构的有限元动力分析 ;采用模态控制方法 ,将结构的各阶模态的阻尼比作为控制目标 ,并以此计算出各压电片的控制电压 ,达到控制结构振动的目的。算例给出了数值计算的结果。
In this paper, a self-adaptive plate-shell structure is studied. The vibration control of the adaptive structure of the piezoelectric actuator is studied. The four-node piezoelectric composite laminate element is used to carry out the finite element dynamic analysis of the adaptive structure. The modal control method is used to control the damping ratio of each mode of the structure as the control target, Control voltage to achieve the purpose of controlling the structure of vibration. The example gives the result of numerical calculation.