新型耗能增强型SMA阻尼器设计和滞回耗能性能分析
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摘要
通过形状记忆合金的材性试验研究其超弹性变形性能,并将其等效拟合为多线性模型,得到其计算参数。提出一种新型耗能增强型SMA阻尼器,说明其构造,阐述其工作原理和设计要点,并介绍阻尼器的设计方法,推导阻尼器的恢复力模型。通过有限元程序对设置该阻尼器的多层钢框架、对角设置SMA拉索的多层钢框架、普通钢框架进行低周反复分析,对比研究了该阻尼器的消能减震能力。研究结果表明:该阻尼器的滞回环非常饱满,耗能能力强,优于对角设置SMA拉索的耗能效果,因此,该新型耗能增强型SMA阻尼器在消能减震领域具有良好的应用前景。
The super-elastic deformation behavior of shape memory alloy was tested,and its stress strain curves were equivalent to multi-linear model.A new enhanced energy dissipation SMA damper was proposed,and its structure,working principle,and design methods were introduced.The restoring force model formula of the damper was derived.A total of three analytical models were calculated by repeated low-cycle analysis.The results show that the hysteresis loop of the damper is fuller,and SMA cables of the damper show superior energy dissipation capacity.Therefore,the new SMA damper has a better value and prospects in engineering.
The super-elastic deformation behavior of shape memory alloy was tested,and its stress strain curves were equivalent to multi-linear model.A new enhanced energy dissipation SMA damper was proposed,and its structure,working principle,and design methods were introduced.The restoring force model formula of the damper was derived.A total of three analytical models were calculated by repeated low-cycle analysis.The results show that the hysteresis loop of the damper is fuller,and SMA cables of the damper show superior energy dissipation capacity.Therefore,the new SMA damper has a better value and prospects in engineering.
引文
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[2]Tamai H,Kitagawa Y.Pseudoelastic behavior of shape memoryalloy wires and its application to seismic resistance member forbuilding[J].Computational Materials Science,2002,25(1/2):218-227.
[3]Corbi O.Shape memory alloys and their application in structuraloscillations attenuation[J].Simulation Modeling Practice andTheory,2003,11(5/6):387-402.
[4]丁阳,张笈玮.高层钢结构地震反应形状记忆合金拉索控制研究[J].地震工程与工程振动,2005,25(3):152-157.DING Yang,ZHANG Jiwei.Seismic response control of tallsteel structures using shape memory alloy tendons[J].Earthquake Engineering and Engineering Vibration,2005,25(3):152-157.
[5]韩玉林,李爱群,林萍华,等.基于形状记忆合金耗能器的框架振动控制试验研究[J].东南大学学报:自然科学版,2000,30(4):16-20.HAN Yulin,LI Aiqun,LIN Pinghua,et al.Experimental study offrame structure vibration control by using shape memory alloydamper[J].Journal of Southeast University:Natural ScienceEdition,2000,30(4):16-20.
[6]LI Hui,MAO Chenxi,OU Jinping.Experimental and theoreticalstudy on two types of shape memory alloy devices[J].Earthquake Engineering and Structural Dynamics,2008,37(3):407-426.
[7]Dolce M,Cardone D,Marnetto R.Implementation and testing ofpassive control devices based on shape memory alloys[J].Earthquake Engineering and Structural Dynamics,2000,29(7):945-968.
[8]Zhang Y,Zhu S.A shape memory alloy based reusable hystereticdamper for seismic hazard mitigation[J].Smart Materials andStructures,2007,16(5):1603-1613.
[9]ZUO Xiaobao,CHANG Wei,LI Aiqun,et al.Design andexperimental investigation of a superelastic SMA damper[J].Materials Science and Engineering A,2006,438/439/440:1150-1153.
[10]薛素铎,董军辉,卞晓芳,等.一种新型形状记忆合金阻尼器[J].建筑结构学报,2005,26(3):45-50.XUE Suduo,DONG Junhui,BIAN Xiaofang,et al.A new typeof shape memory alloy damper[J].Journal of Building Structures,2005,26(3):45-50.
[11]Song G,Ma N,Li H N.Applications of shape memory alloys incivil structures[J].Engineering Structures,2006,28(9):1266-1274.
[12]李宏男,钱辉,宋钢兵.一种新型SMA阻尼器的试验和数值模拟研究[J].振动工程学报,2008,21(2):179-184.LI Hongnan,QIAN Hui,SONG Gangbing.A new type of shapememory alloy damper:design,experiment and numericalsimulation[J].Journal of Vibration Engineering,2008,21(2):179-184.
[13]Ren W J,Li H N,Song G B.Design and numerical evaluation ofan innovative multi-directional shape memory alloydamper[C]//Proceedings of Active and Passive Smart Structuresand Integrated Systems.Bellingham:SPIE,2007:1-9.
[14]禹奇才,刘春晖,刘爱荣.一种放大位移型SMA阻尼器的减震控制分析[J].地震工程与工程振动,2008,28(5):151-156.YU Qicai,LIU Chunhui,LIU Airong.The analysis of structurevibration control by using shape memory alloy dampers withmagnifying story drift[J].Journal of Earthquake Engineering andEngineering Vibration,2008,28(5):151-156.
[15]倪立峰,李秋胜,李爱群,等.新型形状记忆合金阻尼器的试验研究[J].地震工程与工程振动,2002,22(3):145-148.NI Lifeng,LI Qiusheng,LI Aiqun,et al.Investigation andexperiment of damper based on shape memory alloy(SMA)[J].Earthquake Engineering and Engineering Vibration,2002,22(3):145-148.
[16]胡聿贤.地震工程学[M].2版.北京:地震出版社,2009:315-320.HU Yuxian.Earthquake engineering[M].2nd ed.Beijing:Seismological Press,2009:315-320.
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