内置挡板调谐液体阻尼器的减振性能研究
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摘要
为增大调谐液体阻尼器的减振效果,文章提出了内置挡板调谐液体阻尼器,推导了该新型调谐液体阻尼器的基本运动方程,分析了挡板的耗能减振作用以及该新型阻尼器对结构的附加阻尼比.采用Matlab语言编制了内置挡板调谐液体阻尼器的动力分析计算机仿真程序,对某26层典型算例进行了脉动风激励下的结构动力时程仿真分析,并与普通调谐液体阻尼器进行了对比分析.仿真结果表明,文章提出的内置挡板调谐液体阻尼器比普通调谐液体阻尼器的减振效果有明显改善.
This paper proposes a new tuned liquid damper device,namely,TLD with embedded baffles(TLDEB),which can achieve a higher additional damping level.Equation of motion of TLDEB is formulated.The influence of baffles in TLD is investigated theoretically and the offered additional equivalent damping ratio of TLDEB is derived herein.A dynamic analysis program of structure-TLDEB system is coded using MATLAB.A 26-story frame structure subjected to random wind excitation is employed as a numerical example,in order to demonstrate the control effectiveness of the proposed TLDEB and its advantage over traditional TLD.Numerical simulation is conducted,and results indicate that embedded baffle is capable of improving the energy-dissipation performance of TLD significantly.The proposed TLDEB can achieve much better performance than the common TLD.
This paper proposes a new tuned liquid damper device,namely,TLD with embedded baffles(TLDEB),which can achieve a higher additional damping level.Equation of motion of TLDEB is formulated.The influence of baffles in TLD is investigated theoretically and the offered additional equivalent damping ratio of TLDEB is derived herein.A dynamic analysis program of structure-TLDEB system is coded using MATLAB.A 26-story frame structure subjected to random wind excitation is employed as a numerical example,in order to demonstrate the control effectiveness of the proposed TLDEB and its advantage over traditional TLD.Numerical simulation is conducted,and results indicate that embedded baffle is capable of improving the energy-dissipation performance of TLD significantly.The proposed TLDEB can achieve much better performance than the common TLD.
引文
[1]QIAN Jia-ru,WARNITCHAI P,DING Xiong.Modelling of liquid sloshing in the annular region for damper application[J].Engineering Mechanics,1995,12(4):36-46.(in Chinese)
[2]LI Cheng,LI Zhong-xian,Multi-TLD control for multi-modal seismic response of high-rise buildings[J].Journal of Shan-dong University of Science and Technology,2001,20(1):104-107.(in Chinese)
[3]TAITMJ,El Damatty A A,ISYUMOV N,et al.Numerical flowmodels to simulate tuned liquid dampers(TLD)with slatscreens[J].Journal of Fluids and Structures,2005,20:1007-1023.
[4]WANG Zheng-xing,WANG Bo,ZHONG Ji-wei,et al.Research and application of tuned liquid and mass damper(TLMD)[J].Bridge Construction,2011,41(1):10-13.(in Chinese)
[5]HUANG Dong-yang,ZHOU Fu-lin,TAN Ping.Tuned hybrid-tanks/mass damper and its engineering setting method[J].Journal of PLA University of Science and Technology:Natural Science Edition,2009,10(2):187-190.(in Chinese)
[6]HUANG Dong-yang,TAN Ping,YIN Fei,et al.Dynamic characteristics analysis of a TLD with an embedded transversecylinder[J].Journal of Vibration and Shock,2009,28(10):169-173.(in Chinese)
[7]CHEN Zhao-ping,DONG Ping.Numerical simulation of dynamic response of tuned liquid damper[J].Building Structure,2008,38(6):45-47.(in Chinese)
[8]LIANG Qi-zhi,XIONG Jun-ming.An analysis of oscillation characteristics of two-layer fluids TLD using circular cylindercontainer[J].Engineering Mechanics,2001,18(1):7-13.(in Chinese)
[9]BAUER HF.Oscillations of immiscible liquids in a rectangular container:a newdamper for excited structures[J].Journalof Sound and Vibration,1984,93(1):117-133.
[10]HAN Jun,LI Ying-min,LIU Li-ping,et al.Numerical analysis on the amping effect of structure with tuned liquid damperssubjected to seismic excitations[J].Industrial Construction,2010,40(4):55-59.(in Chinese)
[11]LAZAN B J,GOODMAN L E.Shock and vibration handbook,Vol.2[M].New York:McGraw-Hill,1961.
[1]钱稼茹,WARNITCHAI P,丁雄.环形调频液体阻尼器(TLD)的计算模型[J].工程力学,1995,12(4):36-46.
[2]李承,李忠献.高层建筑地震反应多重TLD控制研究[J].山东科技大学学报,2001,20(1):104-107.
[4]汪正兴,王波,钟继卫,等.液体质量双调谐减振器(TLMD)研究与应用[J].桥梁建设,2011,41(1):10-13.
[5]黄东阳,周福霖,谭平.调谐混合水箱/质量阻尼器及其工程设置方法[J].解放军理工大学学报:自然科学版,2009,10(2):187-190.
[6]黄东阳,谭平,尹飞,等.内置横向圆柱体TLD的动力特性分析[J].振动与冲击,2009,28(10):169-173.
[7]陈招平,董平.调谐液体阻尼器动力响应的数值模拟[J].建筑结构,2008,38(6):45-47.
[8]梁启智,熊俊明.圆柱形二层流体TLD的振动特性分析[J].工程力学,2001,18(1):7-13.
[10]韩军,李英民,刘立平,等.TLD结构减震控制的数值分析[J].工业建筑,2010,40(4):55-59.
[2]LI Cheng,LI Zhong-xian,Multi-TLD control for multi-modal seismic response of high-rise buildings[J].Journal of Shan-dong University of Science and Technology,2001,20(1):104-107.(in Chinese)
[3]TAITMJ,El Damatty A A,ISYUMOV N,et al.Numerical flowmodels to simulate tuned liquid dampers(TLD)with slatscreens[J].Journal of Fluids and Structures,2005,20:1007-1023.
[4]WANG Zheng-xing,WANG Bo,ZHONG Ji-wei,et al.Research and application of tuned liquid and mass damper(TLMD)[J].Bridge Construction,2011,41(1):10-13.(in Chinese)
[5]HUANG Dong-yang,ZHOU Fu-lin,TAN Ping.Tuned hybrid-tanks/mass damper and its engineering setting method[J].Journal of PLA University of Science and Technology:Natural Science Edition,2009,10(2):187-190.(in Chinese)
[6]HUANG Dong-yang,TAN Ping,YIN Fei,et al.Dynamic characteristics analysis of a TLD with an embedded transversecylinder[J].Journal of Vibration and Shock,2009,28(10):169-173.(in Chinese)
[7]CHEN Zhao-ping,DONG Ping.Numerical simulation of dynamic response of tuned liquid damper[J].Building Structure,2008,38(6):45-47.(in Chinese)
[8]LIANG Qi-zhi,XIONG Jun-ming.An analysis of oscillation characteristics of two-layer fluids TLD using circular cylindercontainer[J].Engineering Mechanics,2001,18(1):7-13.(in Chinese)
[9]BAUER HF.Oscillations of immiscible liquids in a rectangular container:a newdamper for excited structures[J].Journalof Sound and Vibration,1984,93(1):117-133.
[10]HAN Jun,LI Ying-min,LIU Li-ping,et al.Numerical analysis on the amping effect of structure with tuned liquid damperssubjected to seismic excitations[J].Industrial Construction,2010,40(4):55-59.(in Chinese)
[11]LAZAN B J,GOODMAN L E.Shock and vibration handbook,Vol.2[M].New York:McGraw-Hill,1961.
[1]钱稼茹,WARNITCHAI P,丁雄.环形调频液体阻尼器(TLD)的计算模型[J].工程力学,1995,12(4):36-46.
[2]李承,李忠献.高层建筑地震反应多重TLD控制研究[J].山东科技大学学报,2001,20(1):104-107.
[4]汪正兴,王波,钟继卫,等.液体质量双调谐减振器(TLMD)研究与应用[J].桥梁建设,2011,41(1):10-13.
[5]黄东阳,周福霖,谭平.调谐混合水箱/质量阻尼器及其工程设置方法[J].解放军理工大学学报:自然科学版,2009,10(2):187-190.
[6]黄东阳,谭平,尹飞,等.内置横向圆柱体TLD的动力特性分析[J].振动与冲击,2009,28(10):169-173.
[7]陈招平,董平.调谐液体阻尼器动力响应的数值模拟[J].建筑结构,2008,38(6):45-47.
[8]梁启智,熊俊明.圆柱形二层流体TLD的振动特性分析[J].工程力学,2001,18(1):7-13.
[10]韩军,李英民,刘立平,等.TLD结构减震控制的数值分析[J].工业建筑,2010,40(4):55-59.
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