悬臂Kagome夹心板独立模态空间振动控制研究  

Independent modal space vibration control of cantilever Kagome sandwich plate

作　　者：郭空明[1,2] 江俊[2] 

机构地区：[1]西安电子科技大学机电工程学院,西安710071 [2]西安交通大学机械结构强度与振动国家重点实验室,西安710049

出　　处：《振动与冲击》2015年第2期55-60,共6页Journal of Vibration and Shock

基　　金：中央高校基本科研业务费专项资金项目(K5051304012)

摘　　要：针对悬臂板挠度大、低频振动突出问题,对悬臂Kagome夹心板的振动主动控制进行研究。建立结构及压电作动器有限元模型;将独立模态空间控制与模态观测器相结合,提出悬臂Kagome夹心板的主动控制策略;针对突风载荷作用下夹心板基于独立模态空间的振动控制进行仿真,重点研究观测器极点对控制效果影响。结果表明,所提控制方法能显著提高悬臂Kagome夹心板结构的阻尼特性,观测器衰减系数越大控制效果越好;该夹心板在振动控制方面较传统板结构优势明显。Active vibration of a kind of cantilever Kagome sandwich plate was studied.A finite element model of the cantilever structure with piezoelectric actuator was established.An active control strategy for cantilever Kagome sandwich plate was proposed by combining the independent modal space control with a modal observer.Aiming at one kind of gust load,the independent modal space control of Kagome sandwich plate was simulated,while the influence of observer poles on the control effect was focused on.The results show that the control method can significantly improve the damping properties,and a greater attenuation factor of the observer can get better control effect.Therefore,Kagome sandwich panel has obvious advantages over traditional board structure in vibration control aspect.

关 键 词：悬臂板 KAGOME 夹心板 独立模态空间控制 模态观测器 

分 类 号：O328[理学—一般力学与力学基础] V214.3[理学—力学]