复合式金属型阻尼器的试验研究及数值仿真分析

许维炳; 闫维明; 陈彦江; 李勇; 黄飞鸿

doi:10.13204/j.gyjz201303011

复合式金属型阻尼器的试验研究及数值仿真分析

doi: 10.13204/j.gyjz201303011

1.
1. 北京工业大学工程抗震与结构诊治北京市重点试验室,北京100124;
2.
2. 北京工业大学城市与工程安全减灾教育部重点实验室,北京100124;
3.
3. 北京维创盛荣光电精密科技有限公司,北京100124

基金项目:

国家自然科学基金项目(90715032,50978009)

详细信息

作者简介:
许维炳,男,1986年出生,博士研究生. 电子信箱:xuwb@emails.bjut.edu.cn

中图分类号: TU352.12
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- 文章访问数: 142
- HTML全文浏览量: 10
- PDF下载量: 93
- 被引次数: 0
出版历程
- 收稿日期: 2012-03-24
- 刊出日期: 2013-03-20

EXPERIMENT STUDY AND NUMERICAL SIMULATION ANALYSIS OF METAL ALLOY BRACE

1.
1. Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China;
2.
2. The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China;
3.
3. V I O Creation Technology Inc,Beijing 100124,China

摘要

摘要: 铅挤压型阻尼器初始刚度大,屈服强度高,耗能能力好,被广泛应用于结构减震控制中。然而由于研究者对铅金属力学性质的研究及模拟不足,常常导致数值模拟结果与试验结果存在不同程度的差异。对一种新型的铅-挤压型阻尼器(LED)复合式金属型阻尼器(MAB)进行试验研究,采用DEFORM-3D软件对该型阻尼器进行较为系统地数值仿真分析。通过对比分析试验结果与数值仿真结果可知:复合式金属型阻尼器具有优良的耗能能力,且在大位移下具备良好的结构限位能力,挤压区域尺寸、轴突高度、轴突与阻尼器腔体间的间隙等参数显著影响其耗能能力;有限元仿真过程中,铅金属的力学模型的选择对仿真结果有显著影响,DEFORM-3D在金属耗能器仿真模拟中的应用效果良好。
- 铅挤压型阻尼器 /
- 金属耗能器 /
- 复合式金属型阻尼器 /
- 数值仿真 /
- 耗能能力
Abstract: Lead extrusion damper is widely used in the seismic control of structures for its large initial stiffness,high yield strength and good energy dissipation capacity.But as the lack of the research and analysis of the lead,there are more or less differences between the experiment results and the numerical simulation results of damper.A new style of lead extrusion damper was designed,called metal alloy brace(MAB).According to the result of the experiment study and using the finite element software DEFORM-3D some systemic research of this damper was done.Comparing and analyzing the experiment results and numerical simulation analysis results it concluded as follows: the MAB has an excellent energy dissipation capacity and can provide positive capacity when the structure meets larger earthquake;the size of the extrusion region,the height of the axon,the gap between axon and the cavity have significant effect on the energy dissipation capacity of the damper;during the analysis of the numerical simulation,the choice of mechanical model of lead has significant effect on the simulation result,and DEFORM-3D can be widely used in the numerical simulation analysis of metallic damper.
- lead extrusion damper /
- metallic damper /
- metal alloy brace /
- numerical simulation /
- energy dissipation capacity

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参考文献(10)

闫维明,刘猛,李振宝,等.新型铅剪切阻尼器的数值模拟试验研究[J].北京工业大学学报,2008,34(21):1286－1290.

[2] 杨军,李黎,叶昆.铅挤压阻尼器的研究[J].华中科技大学学报:自然科学版,2006,34(6):115－117.

[3] 闫维明,苏亮,王维凝.铅－挤压阻尼器的数值模拟与试验[J].北京工业大学学报,2010,36(8):1099－1103.

[4] Monir Habib Saeed,Naser Ali. Seismic Design of Steel Structureswith Lead-extrusion Dampers as Knee Braces[J]. AIP Conf.Proc,2008,8(1020),1433－1440.

[5] Parulekar Y M,Reddy G R,Vaze K K,et al. Lead ExtrusionDampers for Reducing Seismic Response of Coolant ChannelAssembly[J]. Nuclear Engineering and Design,2004,227:175－183.

[6] 张莉,李升军. DEFORM 在金属塑性成形中的应用[M].北京:机械工业出版社,2009:1－13.

[7] 周朝辉,曹海桥,吉卫,等. DEFORM 有限元分析系统软件及其应用[J].热加工工艺,2003(4):51－52.

[8] 易幼平,刘超,黄始全.基于 DEFORM －3 D 的7050铝合金动态再结晶元胞自动机模拟[J].中南大学学报:自然科学版,2010,41(5):1814－1820.

[9] Loizou N,Sims R B. The Yield Stress of Pure Lead inCompression[J]. Journal of the Mechanics and Physics of Solids,1953,1:234－243.

[10] Marek Malatyiski,Janusz Klepaczko. Experimental Investigation ofPlastic Properties of Lead Over a Large Range of Strain Rates[J].International Journal of Mechanical Sciences,1979,22:173－183.

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