| 竖向振动对椭圆滑道辊轴摩擦摆隔震性能影响 |
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| 引用本文： | 徐佳琦,王兴国.竖向振动对椭圆滑道辊轴摩擦摆隔震性能影响[J].工程抗震与加固改造,2011,33(3):56-63. |
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| 作者姓名： | 徐佳琦 王兴国 |
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| 作者单位： | 华南理工大学;河北省地震工程研究中心; |
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| 摘 要： | 根据多体动力学理论相对动能定理,推求了椭圆滑道RFPS辊轴式摩擦摆隔震系统动力反应分析计算公式,并考虑了竖向弹性振动的影响.分析与计算结果表明:RFPS辊轴式摩擦摆具有隔震系统所必需特性;较长的自振周期使其具有必要的隔震能力;依靠重力可以使结构复位.依靠滑块与滑道接触面的滑动摩擦阻力可以消耗传入结构的能量.适当地选取滑...
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| 关 键 词： | 滚动摩擦 上盘 动能定理 非线性微分方程 龙格-库塔方法 |
Disturbance from Vertical Oscillation to Seismic Isolation Behavior of RFPS System |
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| Xu Jia-qi,Wang Xing-guo.Disturbance from Vertical Oscillation to Seismic Isolation Behavior of RFPS System[J].Earthquake Resistant Engineering and Retrofitting,2011,33(3):56-63. |
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| Authors: | Xu Jia-qi Wang Xing-guo |
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| Affiliation: | Xu Jia-qi1,Wang Xing-guo2(1.South China University of Technology,Guangzhou 510640,China,2.Earthquake Engineering Research Center of Hebei Province,Tangshan 063009,China) |
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| Abstract: | A theoretical analyzing approach about RFPS seismic isolation system is derived.It starts from the relative kinematic energy theorem in multiply-body dynamics,including the effect of elastic vibration in the vertical direction.Computation results show that a RFPS system has the three kinds of necessary capabilities required for an effective isolation system.The relatively long vibration period provides the necessary isolation capability,the gravity provides the reposition capability,and the rolling friction... |
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| Keywords: | rolling friction upper plate kinematic energy theorem non-linear differential equation Longe-Kuta method |
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