| Research on Effect of SMA Damper in Passive Control |
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| 作者姓名： | PengGang FanJian LiLi TanJiaxiang |
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| 作者单位： | CollegeofCivilEngineering＆Mechanics,HuazhongUniversityofScienceandTechnology,Wuhan430074 |
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| 基金项目： | Thispaperissupportedby“InvestigationofIntellectualizedSystemtoControlStructureVibrationBasedonArtificialNeuralNetwork ( 2 0 0 0B14 0 0 1)”of“ItemofTechnologyInnovateContributedbyHubeiProvinceEducationOffice” . |
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| 摘 要： | In this article, mechanics model of SMA center tension from damper is developed. According to the theory of Brinson constitutive model and thermodynamics first law, damper thermodynamics non-linear equation has been developed. Dynamics non-linear equation of frame structure under operation of SMA damper and its solution have been worked out; the software of seismic response analysis for frame structure and of damper characteristic analysis have been compiled with MATLAB software, andthe examples have been computed with it. The result indicates that SMA damper has obvious damp characteristics and it can provide with obvious restraint effect for seismic response of frame structure. Decreasing rate of displacement and velocity on top of frame structure reaches 50％-60％. The result is in accordance with other pundits experimentation results, which indicates that the above methods are correct and useful.
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| 关 键 词： | 力学模型 热力学方程 非线性 地下建筑 地震响应 |
Research on Effect of SMA Damper in Passive Control |
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| PengGang FanJian LiLi TanJiaxiang.Research on Effect of SMA Damper in Passive Control[J].Journal of China University of Geosciences,2003,14(2):169-174. |
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| Authors: | Peng Gang Fan Jian Li Li Tan Jiaxiang |
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| Abstract: | In this article, mechanics model of SMA center tension from damper is developed. According to the theory of Brinson constitutive model and thermodynamics first law, damper thermodynamics non linear equation has been developed. Dynamics non linear equation of frame structure under operation of SMA damper and its solution have been worked out; the software of seismic response analysis for frame structure and of damper characteristic analysis have been compiled with MATLAB software, and the examples have been computed with it. The result indicates that SMA damper has obvious damp characteristics and it can provide with obvious restraint effect for seismic response of frame structure. Decreasing rate of displacement and velocity on top of frame structure reaches 50 %-60 %. The result is in accordance with other pundits experimentation results, which indicates that the above methods are correct and useful. |
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| Keywords: | shape memory alloy (SMA) transformation pseudo elasticity damper seismic response passive control |
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