磁流变调谐液柱阻尼器半主动地震反应控制研究
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摘要
结构的半主动控制装置是国际上研究的一个热点。磁流变式调谐液柱阻尼器(MR-TLCD)是一种新型的减振驱动器。文中提出了抑制结构水平振动的MR-TLCD模型,建立了MR-TLCD与结构相互作用的运动方程。在经典线性最优控制(COC)和瞬时最优控制(IOC)算法的基础上,研究了Clipped-optimal半主动控制策略的减振效果,并与被动控制的减振效果进行了对比。结果表明:磁流变式调谐液柱阻尼器的半主动控制能够有效地减小结构的地震反应,且优于被动控制。
Semi-active control devices for structures are a hot spot of research in the world.Magnetorheological tuned liquid column damper(MR-TLCD) is a new kind of device for vibration control of the structures.A theoretical model of MR-TLCD for suppressing horizontal vibration of the structures is developed in the paper.The MR-TLCD-structure interaction equations are formulated.The control effect on semi-active control strategy of clipped-optimal is studied based on the classical optimal control algorithm and the instantaneous optimal control algorithm.Then it is compared with the passive control effect.The results show that the semi-active control of the structure using MR-TLCD can reduce the structural seismic response efficiently.Moreover,the effect of semi-active control is better than that of passive control.
Semi-active control devices for structures are a hot spot of research in the world.Magnetorheological tuned liquid column damper(MR-TLCD) is a new kind of device for vibration control of the structures.A theoretical model of MR-TLCD for suppressing horizontal vibration of the structures is developed in the paper.The MR-TLCD-structure interaction equations are formulated.The control effect on semi-active control strategy of clipped-optimal is studied based on the classical optimal control algorithm and the instantaneous optimal control algorithm.Then it is compared with the passive control effect.The results show that the semi-active control of the structure using MR-TLCD can reduce the structural seismic response efficiently.Moreover,the effect of semi-active control is better than that of passive control.
引文
[1]周云,徐龙河,李忠献.磁流体阻尼器半主动控制结构的地震反应分析[J].土木工程学报,2001,34(5):10-14.
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[4]Swaroop K,Yalla S M,Ahsan Kareem M.Semiactive tuned liquid column dampers:experimental study[J].Journal of Structural Engineering,2003,129(8):960-971.
[5]李宏男,霍林生.调液阻尼器对结构扭转耦联振动控制的优化设计[J].计算力学学报,2005,22(2):129-134.
[6]Ko J,Zhan S,Ni Y,et al.Smart TLCD using synthetic hydrocarbon-based MR fluid:an experimental study[C].Sensors and Smart StructuresTechnologies for Civil,Mechanical,and Aerospace System,California,USA,2004:250-261.
[7]Wang J Y,Ni Y Q,Ko J.M.Spencer Jr B F.Magneto-rheological tuned liquid column dampers(MR-TLCDs)for vibration mitigation of tallbuildings:modeling and analysis of open-loop control[J].Computers and Structures,2005,83(2):2023-2034.
[8]Spencer Jr B F,Dyke S J,Sain M K,et al.Phenomenological model for magnetorheological dampers[J].Journal of Engineering Mechanics,1997,123(3):230-238.
[9]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,2005:356-359.
[10]Jansen LM,Dyke S J.Semiactive control strategies for MR dampers:comparative study[J].Journal of Engineering Mechanics,2000,126(8):795-803.
[11]李秀领,李宏男.磁流变阻尼器结构控制策略研究进展[J].防灾减灾工程学报,2004,24(3):335-341.
[12]欧进萍,牛荻涛,杜修力.设计用随机地震动的模型及其参数确定[J].地震工程与工程振动,1991,11(3):45-54.
[13]Shinozuka M,Jan C M.Digital Simulation of Random Processes and Its Applications[J].Sound and Vibration,1972,25(1):111-128.
[14]欧进萍.结构振动控制[M].北京:科学出版社,2003:500-501.
[2]瞿伟廉.MR阻尼器对高耸结构风致反应的智能控制[J].建筑科学与工程学报,2006,23(1):10-16.
[3]王修勇,陈政清,倪一清,等.斜拉桥拉索磁流变阻尼器减振技术研究[J].中国公路学报,2003,16(2):52-56.
[4]Swaroop K,Yalla S M,Ahsan Kareem M.Semiactive tuned liquid column dampers:experimental study[J].Journal of Structural Engineering,2003,129(8):960-971.
[5]李宏男,霍林生.调液阻尼器对结构扭转耦联振动控制的优化设计[J].计算力学学报,2005,22(2):129-134.
[6]Ko J,Zhan S,Ni Y,et al.Smart TLCD using synthetic hydrocarbon-based MR fluid:an experimental study[C].Sensors and Smart StructuresTechnologies for Civil,Mechanical,and Aerospace System,California,USA,2004:250-261.
[7]Wang J Y,Ni Y Q,Ko J.M.Spencer Jr B F.Magneto-rheological tuned liquid column dampers(MR-TLCDs)for vibration mitigation of tallbuildings:modeling and analysis of open-loop control[J].Computers and Structures,2005,83(2):2023-2034.
[8]Spencer Jr B F,Dyke S J,Sain M K,et al.Phenomenological model for magnetorheological dampers[J].Journal of Engineering Mechanics,1997,123(3):230-238.
[9]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,2005:356-359.
[10]Jansen LM,Dyke S J.Semiactive control strategies for MR dampers:comparative study[J].Journal of Engineering Mechanics,2000,126(8):795-803.
[11]李秀领,李宏男.磁流变阻尼器结构控制策略研究进展[J].防灾减灾工程学报,2004,24(3):335-341.
[12]欧进萍,牛荻涛,杜修力.设计用随机地震动的模型及其参数确定[J].地震工程与工程振动,1991,11(3):45-54.
[13]Shinozuka M,Jan C M.Digital Simulation of Random Processes and Its Applications[J].Sound and Vibration,1972,25(1):111-128.
[14]欧进萍.结构振动控制[M].北京:科学出版社,2003:500-501.
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