基于压电元件的悬臂梁半主动振动控制研究  

Semi-Active Vibration Control of Cantilever Beam Using Piezoelectric Element

作　　者：赵永春[1] 季宏丽[1] 裘进浩[1] 朱孔军[1] 

机构地区：[1]南京航空航天大学智能材料与结构航空科技重点实验室,南京210016

出　　处：《振动．测试与诊断》2009年第4期424-429,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(编号:50775110);航空科学基金资助项目(编号:2006ZF52064);江苏省博士创优基金资助项目(编号:CX08B-0482)

摘　　要：为了探讨非线性同步开关阻尼技术(synchronized switch damping,简称SSD)的半主动振动控制系统中开关切换效率对控制效果的影响,详细推导了基于开关切换效率的SSDI(synchronized switch damping on inductor)及SSDV(synchronized switch damping on voltage)的振动阻尼表达式,并搭建了悬臂复合梁振动半主动试验平台,对理论分析结果进行了试验验证。试验结果表明,开关切换的延时越小,控制效果越佳。The semi-active vibration control method based on synchronized switch damping (SSD) techniques has attracted much attention due to its simplicity and high efficiency. Switching of voltage on a piezoelectric patch can easily be realized by a simple circuit composed of a few electronic components. In this study the relationship between the switching delay and the control performance was investigated. The expressions of vibration damping of the synchronized switch damping on inductor (SSDI) and synchronized switch damping on voltage source (SSDV) were derived considering the switching delay time. In additional,the experimental platform of semi-active vibration control for cantilever composite beam was established,and the theoretical analysis was verified in the experiments. The results show that the better the control performance gets,the shorter the switching delay is.

关 键 词：同步开关阻尼 半主动 振动控制 压电元件 

分 类 号：TB535[理学—物理] TP274[理学—声学]