形状记忆合金拉索被动控制结构地震响应分析
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摘要
根据形状记忆合金（SMA）材料的热力学特性，提出了装有SMA拉索，利用其独特的相变伪弹性性能被动控制建筑结构地震响应的力学分析和计算模型，讨论了这种全新功能材料在结构抗震控制中的应用。通过有控结构与无控结构的地震响应分析，检验了SMA被动拉索的被动控制效果，探讨了其控制机理和规律。研究结果表明，SMA被动拉索不仅可以有效地减小和抑制结构的地震响应，而且性能可靠，构造简单，自适应能力强，因此在结构抗震控制中具有广阔的应用前景。
Based on the thermo-mechanical properties of a new functional material--shape memory alloy (SMA), a mechanical analysis and computational model in consideration of the special transformation pseudp-elastic behavior of SMA is presented for earthquake response analysis of the buildings with SMA passive tendon system .Then, the applications of SMA in aseismic control of structures are also discussed. Furthermore, the vibration-suppressed effect the is verfied and the vibration control mechanism as well as the control efficiency of SMA passive tendons is studied by time-history analysis.The results obtained in the paper demonstrate that the SMA passive tendon control system is not only capable of significantly reducing the seismic response of the buildings , but it is also an effective energny dissipation device with simple composition and good function, hence its application prospect in aseismic control of structures appears to be highly promising.
Based on the thermo-mechanical properties of a new functional material--shape memory alloy (SMA), a mechanical analysis and computational model in consideration of the special transformation pseudp-elastic behavior of SMA is presented for earthquake response analysis of the buildings with SMA passive tendon system .Then, the applications of SMA in aseismic control of structures are also discussed. Furthermore, the vibration-suppressed effect the is verfied and the vibration control mechanism as well as the control efficiency of SMA passive tendons is studied by time-history analysis.The results obtained in the paper demonstrate that the SMA passive tendon control system is not only capable of significantly reducing the seismic response of the buildings , but it is also an effective energny dissipation device with simple composition and good function, hence its application prospect in aseismic control of structures appears to be highly promising.
引文
1王社良,沈亚鹏.形状记忆合金的力学特性及其工程应用.工业建筑,1998,28(3):31-35
2 Mullerl.A model for a body with shape memory.Arch.Rat.Mech.Anal,1979,70(1):61-67
3王健,沈亚鹏,王社良.形状记忆合金的本构关系.上海力学,1998,19(3):185-195
4 Brinson L C.One-dimensional constitutive behaviro of shape memory alloys.J.Intell.Mater .Syst.and Struct, 1994, 5(8)
5 Clough R W , Penzien J.Dynamics of Structures .New York:McGraw-Hill Book Co. Inc.1993
6匡震邦.非线性连续介质力学基础.西安:西安交通大学出版社,1989
7 Shahin A R Meckl, P H,Jones J D . Enhanced cooling of hememory alloy wires using semiconductor “heat pump” modules.J. Intell Mater Syst, and Struct ,1994, 5( 1)
8徐立良.FORTRAN 常用算法程序集.北京:清华大学出版社,1996
9严金良.形状记忆合金力学特性的有限元分析及其在管接头中的应用(硕士学位论文).西安交通大学,1996
2 Mullerl.A model for a body with shape memory.Arch.Rat.Mech.Anal,1979,70(1):61-67
3王健,沈亚鹏,王社良.形状记忆合金的本构关系.上海力学,1998,19(3):185-195
4 Brinson L C.One-dimensional constitutive behaviro of shape memory alloys.J.Intell.Mater .Syst.and Struct, 1994, 5(8)
5 Clough R W , Penzien J.Dynamics of Structures .New York:McGraw-Hill Book Co. Inc.1993
6匡震邦.非线性连续介质力学基础.西安:西安交通大学出版社,1989
7 Shahin A R Meckl, P H,Jones J D . Enhanced cooling of hememory alloy wires using semiconductor “heat pump” modules.J. Intell Mater Syst, and Struct ,1994, 5( 1)
8徐立良.FORTRAN 常用算法程序集.北京:清华大学出版社,1996
9严金良.形状记忆合金力学特性的有限元分析及其在管接头中的应用(硕士学位论文).西安交通大学,1996
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