结构主动与被动调谐质量阻尼器的减震性能
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摘要
使用Kanai Tajimi地震动模型,建立了主动调谐质量阻尼器(ATMD)结构系统的传递函数。将ATMD最优参数的评价准则定义为:设置ATMD结构均方根位移(解析式)的最小值的最小化。将AT MD有效性的评价准则定义为:设置ATMD结构均方根位移的最小值的最小化与未设置ATMD结构的均方根位移之比。根据选择的评价准则,评价了地震卓越频率系数(EDFR)对ATMD抗震控制性能的影响。同时也评价了EDFR对被动调谐质量阻尼器(PTMD)抗震控制性能的影响。
Employing the Kanai-Tajimi model of ground motions, the transfer function is formulated for the active tuned mass damper (ATMD) structure system. The evaluation criterion for the ATMD optimum parameters can then be defined as the minimization of the minimum root-mean-square (RMS) displacement of the structure with ATMD. The criterion used to evaluate the effectiveness of the ATMD is the ratio of the minimization of the minimum RMS displacement of the structure with ATMD to the RMS displacement of the structure without ATMD. Based on the above-defined evaluation criteria, the evaluation is carried out for the effects of earthquake dominant frequency ratio (EDFR) on the seismic control performance of the ATMD. Simultaneously, the assessment is also carried out for the effects of earthquake dominant frequency ratio (EDFR) on the seismic control performance of the passive tuned mass damper (PTMD).
Employing the Kanai-Tajimi model of ground motions, the transfer function is formulated for the active tuned mass damper (ATMD) structure system. The evaluation criterion for the ATMD optimum parameters can then be defined as the minimization of the minimum root-mean-square (RMS) displacement of the structure with ATMD. The criterion used to evaluate the effectiveness of the ATMD is the ratio of the minimization of the minimum RMS displacement of the structure with ATMD to the RMS displacement of the structure without ATMD. Based on the above-defined evaluation criteria, the evaluation is carried out for the effects of earthquake dominant frequency ratio (EDFR) on the seismic control performance of the ATMD. Simultaneously, the assessment is also carried out for the effects of earthquake dominant frequency ratio (EDFR) on the seismic control performance of the passive tuned mass damper (PTMD).
引文
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[2]李春祥.地震作用下高层建筑TMD控制研究与设计[J].上海交通大学学报,1999,33(6):746～749.
[3]LiChunxiang,LiuYanxia.Groundmotiondominantfrequencyeffectondesignofmultipletunedmassdampers[J].JournalofEarthquakeEngineering,2004,8(1):89～105.
[4]LiChunxiang,LiuYanxia.Optimummultipletunedmassdampersforstructuresundergroundaccelerationbasedontheuniformdistributionofsystemparameters[J].EarthquakeEngineeringandStructuralDynamics,2003,32:671～690.
[5]LiChunxiang,LiuYanxia.Furthercharacteristicsformultipletunedmassdampers[J].ASCEJournalofStructuralEngineering,2002,128(10):1362～1365.
[6]LiChunxiang.OptimummultipletunedmassdampersforstructuresunderthegroundaccelerationbasedonDDMFandADMF[J].EarthquakeEngineeringandStructuralDynamics,2002,31(4):897～919.
[7]LiChunxiang.Performanceofmultipletunedmassdampersforattenuatingundesirableoscillationsofstructuresunderthegroundacceleration[J].EarthquakeEngineeringandStructuralDynamics,2000,29(9):1405～1421.
[8]ChangCC,YangHTY.Controlofbuildingsusingactivetunedmassdampers[J].J.Eng.Mech.ASCE,1995,121(3):355～366.
[9]AnkireddiS,YangHTY.SimpleATMDcontrolmethodologyfortallbuildingssubjecttowindloads[J].J.Struct.Eng.ASCE,1996,122(1):83～91.
[10] 顾明,王晓勇.用主动调谐质量阻尼器控制高层建筑的风致振动[J].地震工程与工程振动,1998,18(3):88～95.
[11] 李春祥.结构基于绝对加速度完整反馈ATMD控制[J].振动与冲击,2003,22(2):47～48.
[12] NishitaniA,InoueY.Overviewoftheapplicationofactive/semi activecontroltobuildingstructuresinJapan[J].EarthquakeEng.Struct.Dyn.,2001,30:349～362.
[13] 李春祥,翟文杰.改进的Clough Penzien地震地面运动模型[J].地震工程与工程振动,2003,23(5):53～56.
[14] SpanosP TD.Spectralmomentscalculationoflinearsystemoutput[J].J.Appl.Mech.ASME,1981,50:901～903.
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