| 摩擦与粘性流体耗能器串联体系动力分析 |
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| 引用本文： | 吕西林,周强.摩擦与粘性流体耗能器串联体系动力分析[J].地震工程与工程振动,2001,21(1):123-130. |
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| 作者姓名： | 吕西林 周强 |
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| 作者单位： | 同济大学结构工程与防灾研究所, |
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| 基金项目： | 国家教委跨世纪优秀人才基金，上海市科技发展基金 |
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| 摘 要： | 采用粘性屈服模型来模拟摩擦耗能器的力－速度关系，建立了摩擦与粘性流体耗能器串联耗能体系的动力分析方法．为考虑框架杆件和支撑材料的几何非线性，采用增量型Ｒｏｓｅｎｂｒｏｃｋ二级三阶半隐式Ｒｕｎｇｅ－Ｋｕｔｔａ法求解动力方程．比较了仅有摩擦耗能器体系与串联组合耗能体系的减振效果，分析了粘性流体耗能器参数对组合耗能体系减振效果的影响。
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| 关 键 词： | 摩擦耗能器 粘性流体耗能器 粘性屈服模型 半隐式Runge—Kutta法 动力分析 |
| 文章编号： | 1000-1301(2001)01-0123-08 |
| 修稿时间： | 2000年9月19日 |
Dynamic analysis of energy dissipation system with friction dampers in series with viscous fluid dampers |
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| LU Xi-lin,ZHOU Qiang.Dynamic analysis of energy dissipation system with friction dampers in series with viscous fluid dampers[J].Earthquake Engineering and Engineering Vibration,2001,21(1):123-130. |
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| Authors: | LU Xi-lin ZHOU Qiang |
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| Abstract: | Viscous yield model is adopted to simulate the force-velocity relationship of the friction dampers(FDs). Then the dynamic analysis method of energy dissipation system with FDs in series with viscous fluid dampers (VFDs) is established. An increment type Rosenbrock semi implicit Runge-Kutta method of order 3 with stage number 2 is adoped to solve the dynamic equations for the material and geometry nonlinearity of the frame and braces. The reducing vibration effects are compared between energy dissipation systems only with FDs and their series connection with VFDs, and the influence of VFDs on the combination energy dissipation system are studied. |
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| Keywords: | friction damper(FD) viscous fluid damper(VFD) viscous yield model semi-implicit Runge-Kutta method dynamic analysis |
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