压电复合材料层合板自适应结构的振动控制  

Vibration control of adaptive structure using composite laminated piezoelectric element

作　　者：唐纪晔[1] 黄海[1] 夏人伟[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100083

出　　处：《计算力学学报》2000年第4期441-446,共6页Chinese Journal of Computational Mechanics

基　　金：国家高技术 863 -2资助项目

摘　　要：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, the vibration control of composite laminated adaptive structure, which used piezoelectric material as the actuators, was studied. A four\|node piezoelectric composite laminated plated element was implemented for dynamic analysis of adaptive structure. The damping ratios of truncated models were considered as the control objects, so that each of the structural modal oscillation could decay rapidly. Hence, the structural oscillation was effectively controlled. According to the velocity feedback, structural frequency parameters and vibration modes, and the position of actuators, the control voltages of the actuators were calculated. Numerical examples were given to show the efficiency of the method.

关 键 词：自适应结构 振动模态控制 阻尼比 压电复合材料层合板 航天结构 

分 类 号：V414.8[航空宇航科学与技术—航空宇航推进理论与工程]