磁流变式调谐液柱阻尼器对地震作用的控制研究
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摘要
磁流变式调谐液柱阻尼器(MR-TLCD)是在调谐液柱阻尼器(TLCD)基础上发展的一种新型减振装置。建立了MR-TLCD数学模型,采用了等效阻尼线性化处理方法,分析了地震作用下对不同质量比、频率比以及可调控制剪切力等参数变化下对减振效果的影响。结果证明,磁流变式调谐液柱阻尼器对地震作用下单自由振动控制具有良好的控制效果。
A novel damping device-magnetorheological tuned liquid column damper (MR-TLCD), consisting of the tuned liquid column damper (TLCD) and magnetorheological damper (MR damper), was proposed. The mathematical model of MR-TLCD was established and its dynamical equation was linearized by means of equivalent damping principle. Different mass ratios, frequency ratios and controllable shear stress, and so on, were analyzed under seismic load condition. The analysis results show that MR-TLCD with optimal parameters is capable of achieving better vibration mitigation capability.
A novel damping device-magnetorheological tuned liquid column damper (MR-TLCD), consisting of the tuned liquid column damper (TLCD) and magnetorheological damper (MR damper), was proposed. The mathematical model of MR-TLCD was established and its dynamical equation was linearized by means of equivalent damping principle. Different mass ratios, frequency ratios and controllable shear stress, and so on, were analyzed under seismic load condition. The analysis results show that MR-TLCD with optimal parameters is capable of achieving better vibration mitigation capability.
引文
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[2]Cao H,Kwok K S C,Samali B.Characteristics of Multiple tuned liquid column dampers in suppressing structural vibra-tion[J].Engineering structure1999,21.316—331.
[3]Balendra T,Wang C M,Cheong HF.Effectiveness of tuned liquid column damper for vibration control of towers[J].En-gng Struct,1995;17:668—675.
[4]Chang C C,Hsu C T.Control performance of liquid column vibration absorbers[J].Engineering structure,1998,20:580—586.
[5]Hochrainer M J.Tuned liquid column damper for structural control.Acta Mechanica,2005,175:57—76.
[6]Frandsen J B.Numerical predictions of tuned liquid tank structural systems[J].J of Fluids and structures,2005,20:309—329.
[7]Swaroop K,Yalla S M,Ahsan Kareem M.Semiactive Tuned Liquid Column Dampers:Experimental Study[J].J of struc-ture engineering.ASCE,2003,129(7):960—971.
[8]Fortner B.Water tanks damp motion in Vancouver high-rise[J].Civil engineering ASCE,2001,71(6):18—18.
[9]阎石,李宏男,林皋.可调频调液柱型阻尼器振动控制参数研究[J].地震工程与工程振动,1998,18(4):96—102.
[10]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.
[11]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.
[12]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.
[13]王修勇,陈政清,倪一清,高赞明.斜拉桥拉索磁流变阻尼器减振技术研究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.
[14]Wang J Y,Ni Y Q,Ko J M,Spencer Jr B F.Magneto-rheolog-ical tuned liquid column dampers(MR-TLCDs)for vibration mitigation of tall buildings:modeling and analysis of open-loop control.Computers and Structures,2005,83:2023—2034.
[15]Wu J Ch,Shib MH,Lin Y Y,Shen Y Ch.Design guideline for tuned liquid column damper.for sturcutres responding to wind.Engineering Structure,2005,27:1983—1905.
[16]Chang C C,Hsu C T.Control performance of liquid column vibration absorbs.Engineering Structures,1998,20(8):580—586.
[17]Tullis J P.Hydraulic of pipeline wiley.New York.1989.
[18]侯友夫.往复矩形密封的理论分析和实验研究[J].中国矿业大学学报,1997,26(1):89—93.
[19]Dyke S J,Spencer Jr B F,Jn Sa MK,Carlson J D.Modeling and Control of Magnetorhcological Dampers for Seismic Re-sponse Reduction[J].Smart Mater Struct,1996,5:565—575.
[20]欧进萍,关新春.磁流变耗能器及其性能[J].地震工程与工程振动,1998,18(3):74—81.
[21]Nicos Makrisy,Scott A Burtonz,Douglas P Taylor.Electro-rheological damper withannular ducts for seismic protection applications[J].Smart Mater.Struct,1996,5:551—564.
[22]Victor L,Streeter E,Benjamin Wylie,Keith W.Bedford.Flu-id mechanics(ninth edition)清华大学出版社,2003.
[23]Hitcheock P A,Kwok K C S,Watkins R D.Characteristics of liquid column vibration absorbers(LCVA)-Ⅰ[J].Engi-neering Structures,1997,19(2):126—134.
[24]林家浩,张亚辉,著.随机振动的虚拟激励法[M].北京:科学出版社,2004.
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