基于磁流变液阻尼杆件的空间网壳风振半主动控制
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摘要
对基于磁流变液阻尼杆件的空间网壳结构风振控制问题进行研究.将磁流变液阻尼器与网壳结构杆件结合,形成智能构件空间网壳结构.利用Bingham粘塑性模型描述磁流变液阻尼器的性能,采用Bang-Bang半主动控制算法,提出结构的广义弹性能和广义动能作为评价结构控制效果的指标.对一局部双层凯威特球面网壳结构,采用上层双十字交叉方案布置磁流变液阻尼器,并开展数值计算.结果表明,采用广义弹性能和广义动能指标可较好地反映对结构风振控制的效果.
The wind-induced vibration control of spatial reticulated shell structure(SRSS) with the magnetorheological-fluid(MR) damper members was studied.Bingham model was used to describe the mechanical behavior of MR dampers and a semi-active control algorithm was adopted.Generalized elastic energy and generalized kinetic energy were suggested to measure the wind-induced vibration control effect for SRSS.A partial double-layer spherical Kiewitt SRSS with double crossing arrangement of MR dampers was used as the numerical model.It is shown that the vibration control effect can be described reasonably by means of the generalized elastic energy and generalized kinetic energy.
The wind-induced vibration control of spatial reticulated shell structure(SRSS) with the magnetorheological-fluid(MR) damper members was studied.Bingham model was used to describe the mechanical behavior of MR dampers and a semi-active control algorithm was adopted.Generalized elastic energy and generalized kinetic energy were suggested to measure the wind-induced vibration control effect for SRSS.A partial double-layer spherical Kiewitt SRSS with double crossing arrangement of MR dampers was used as the numerical model.It is shown that the vibration control effect can be described reasonably by means of the generalized elastic energy and generalized kinetic energy.
引文
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[9]Spencer B F,Dyke S J,Sain M K,et al.Phenome-nological model of a magnetorheological damper[J].Journal of Engineering Mechanics,1997,123(3):230-238.
[10]唐少容,周岱,黄真,等.MR智能阻尼器对空间网壳结构的风振抑制分析[J].振动与冲击,2006,25(6):25-34.TANG Shao-rong,ZHOU Dai,HUANG Zhen,etal.The wind-induced vibration control of spatialreticulated shell structures with MR dampers[J].Journal of Vibration and Shock,2006,25(6):25-34.
[11]Balamurugan V,Narayanan S.Shell finite elementfor smart piezoelectric composite plate shell structuresand its application to the study of active vibrationcontrol[J].Finite Elements in Analysis and Design,2001,37:713-738.
[12]欧进萍.结构振动与控制[M].北京:科学出版社,2003.
[13]Zhu W Q,Luo M,Dong L.Semi-active control ofwind excited building structures using MR/ERdamp-ers[J].Probabilistic Engineering Mechanics,2004,19:279-285.
[2]范峰,沈世钊.网壳结构的粘滞阻尼减振分析与试验研究[J].地震工程与工程振动,2000,20(1):105-111.FAN Feng,SHEN Shi-zhao.Vibration reducinganalysis and experi mental study of viscous damper onreticulated shells[J].Earthquake Engineering and En-gineering Vibration,2000,20(1):105-111.
[3]叶继红,陈月明,沈世钊.TMD减震系统在网壳结构中的应用[J].哈尔滨建筑大学学报,2000,33(5):10-14.YE Ji-hong,CHEN Yue-ming,SHENShi-zhao.Thepresent situation of seismic vibration control of reticu-lated shell structures using TMD system[J].Journalof Harbin University of Civil Engineering and Architec-ture,2000,33(5):10-14.
[4]李宏男,李忠献.结构振动与控制[M].北京:中国建筑工业出版社,2005.
[5]阳光,周岱,黄真.耗能阻尼器杆件在空间网格结构风振抑制中的位置与数量寻优[J].上海交通大学学报,2007,41(6):955-959.YANG Guang,ZHOU Dai,HUANG Zhen.Thequantity opti mization and opti mal placement of energyabsorbing dampers for wind-induced vibration reduc-tion of space reticulated structures[J].Journal ofShanghai Jiaotong University,2007,41(6):955-959.
[6]董平,唐家祥.MR智能材料在结构振动控制中的应用[J].工程抗震,2000,6(2):15-23.DONG Ping,TANG Jia-xiang.Application of MRsmart materials in vibration control[J].Journal ofEarthquake Resistant,2000,6(2):15-23.
[7]邓志党,高峰,刘献栋,等.磁流变阻尼器力学模型的研究现状[J].振动与冲击,2006,25(3):121-126.DENG Zhi-dang,GAO Feng,LI U Xian-Dong,et al.Research of magnetorheological damper mechanicmodel[J].Journal of Vibration and Shock,2006,25(3):121-126.
[8]瞿伟廉,徐幼麟.ER/MR智能阻尼器对空间网壳结构地震反映的半主动控制[J].地震工程与工程振动,2001,21(4):24-31.QU Wei-lian,XU You-lin.Semi-active control forearthquake responses of reticulates shells with ER/MR smart dampers[J].Earthquake Engineering andEngineering Vibration,2001,21(4):24-31.
[9]Spencer B F,Dyke S J,Sain M K,et al.Phenome-nological model of a magnetorheological damper[J].Journal of Engineering Mechanics,1997,123(3):230-238.
[10]唐少容,周岱,黄真,等.MR智能阻尼器对空间网壳结构的风振抑制分析[J].振动与冲击,2006,25(6):25-34.TANG Shao-rong,ZHOU Dai,HUANG Zhen,etal.The wind-induced vibration control of spatialreticulated shell structures with MR dampers[J].Journal of Vibration and Shock,2006,25(6):25-34.
[11]Balamurugan V,Narayanan S.Shell finite elementfor smart piezoelectric composite plate shell structuresand its application to the study of active vibrationcontrol[J].Finite Elements in Analysis and Design,2001,37:713-738.
[12]欧进萍.结构振动与控制[M].北京:科学出版社,2003.
[13]Zhu W Q,Luo M,Dong L.Semi-active control ofwind excited building structures using MR/ERdamp-ers[J].Probabilistic Engineering Mechanics,2004,19:279-285.
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