主被动调谐控制结构动力响应分析与试验  

Experimental and Analytical Study of Dynamic Response of Structure Controlled by Active-Passive Hybrid Tune Mass Damper

作　　者：刘彦辉[1,2,3] 谭平[1] 周福霖[1,2] 闫维明[2] 

机构地区：[1]广州大学减震控制与结构安全国家重点实验室(培育),广州510405 [2]北京工业大学建筑工程学院,北京100124 [3]多伦多大学土木工程系

出　　处：《振动．测试与诊断》2015年第3期441-447,587-588,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：国家重点基础研究发展计划("九七三"计划)资助项目(2012CB723304);广州市珠江科技新星资助项目(2014J220058);国家自然科学基金资助项目(51478131;51408142);"十二五"科技支撑计划资助项目(2012BAJ07B02)

摘　　要：针对地震和风振下结构的振动控制,提出了结构主被动复合调谐控制的策略,以及采用直线电机驱动主动质量阻尼器(active mass damper,简称AMD)、中空橡胶隔震支座作为调谐质量阻尼器(tune mass damper,简称TMD)弹性单元、滑轨作为TMD支撑轨道的主被动复合调谐控制装置实现方法,进行了主被动复合调谐控制对结构动力响应控制的效果及减震机理分析,探讨了反馈响应向量对控制效果、AMD控制力和AMD位移的影响,完成了线性二次高斯算法(linear quadratic Gaussian,简称LQG)控制算法和H2/H∞控制算法时的主被动复合调谐控制结构振动台试验。研究结果表明:结构主被动复合调谐控制能有效减小结构的动力响应,改善TMD的性能;采用直线电机驱动的AMD作为主动控制装置,为防止AMD"飘移",AMD位移应作为目标向量和反馈响应;LQG控制算法总体控制效果优于H2/H∞控制算法。试验验证了提出的主被动复合调谐控制硬件系统方案的可行性,为工程应用提供了支撑。For the vibration control of structures under earthquake and wind excitation,the active-passive hybrid tune mass damper(HMD)is presented and the realization tactic of the control device is proposed,which adopts active mass damper(AMD)driven by linear motors,hollow rubber bearings as restoring force springs of the tune mass damper(TMD),and guide rails as supported structure.Then,the control effect and damping mechanism of the HMD for the dynamic response of the structure are analyzed under external excitations.Meanwhile,the influence of feedback response on control effect,control force and displacement AMD are discussed.Finally,the shaking table test of the structure controlled by HMD is carried out based on linear-quadratic-gaussian(LQG)and control algorithm.Simulation and experimental results show that HMD can effectively suppress the dynamic response of the structure and improve the performance of TMD.In order to solve the problem of AMD shifting,the displacement of AMD should be chosen as a control object and feedback vector when the AMD driven by linear motors is taken as the active control device.The control effect of the LQG control algorithm is better than that of thecontrol algorithm,and the feasibility of the HMD′s hardware system is experimentally proven,which supports the application of the HMD control system to pure engineering.

关 键 词：复合调谐控制 振动控制 主动质量阻尼器 调谐质量阻尼器 控制算法 

分 类 号：TU352.1[建筑科学—结构工程] TH113[机械工程—机械设计及理论]