第二类可控式TMD-混合水箱系统的减振控制性能
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摘要
提出第二类可控式TMD-混合水箱系统(CTHTS-Ⅱ)来应对由于结构物频率摄动而导致被动调谐类阻尼器的减振效果下降的问题。对比于第一类可控式TMD-混合水箱系统(CTHTS-Ι),两者在结构物频率减小时的减振效果相当;而在结构物频率增大时,CTHTS-Ⅱ具有比CTHTS-Ι更优的减振控制性能。
The controllable TMD-hybrid tank system of the second kind (CTHTS-ΙΙ) is presented to handle the vibration control effectiveness drop of tuned type dampers due to frequency excursion of a structure. As compared with the controllable TMD-hybrid tank system of the first kind (CTHTS-Ι), these two systems can almost achieve an identical performance level when the frequency of a controlled structure decreases; however, CTHTS-ΙΙ performs better than CTHTS-Ι when the frequency of a controlled structure increases.
The controllable TMD-hybrid tank system of the second kind (CTHTS-ΙΙ) is presented to handle the vibration control effectiveness drop of tuned type dampers due to frequency excursion of a structure. As compared with the controllable TMD-hybrid tank system of the first kind (CTHTS-Ι), these two systems can almost achieve an identical performance level when the frequency of a controlled structure decreases; however, CTHTS-ΙΙ performs better than CTHTS-Ι when the frequency of a controlled structure increases.
引文
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2谭平,黄东阳,苏键,等.混合水箱微调的TMD系统的减震策略.第六届全国结构减震控制学术研讨会论文集,昆明,2007;11:112—118
3蓝文武.混合水箱装置对高层建筑结构地震反应控制效果的研究.世界地震工程,2001;17(2):59—64
4Chang P M,Jack Y K L,Loren D L.Model identification and control of a tuned liquid damper.Engineering Structures,1998;20(3):155—163
5Xu Y L,Samali B,Kwok K C S.Control of along-wind response of structures by mass and liquid dampers.Journal of Engineering Me-chanics,1992;118(1):20—39
6Housner G W.Dynamic pressure on accelerated fluid containers.Bulletin of the Seismological of America,1957;47(1):15—35
7张嗣瀛,高立群.现代控制理论.北京:清华大学出版社,2006
8Yalla S K,Kareem A.Semiactive tuned liquid column dampers:ex-perimental study.ASCE Journal of Structural Engineering,2003;129(7):960—971
9李春祥,杜冬.MTMD对结构刚度和质量参数摄动的鲁棒性.振动与冲击,2004;23(1):38—40
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