| 隔震结构等代体系动力响应的小参数逼近解法 |
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| 引用本文： | 杜永峰,狄生奎,尹维祥,韩建平.隔震结构等代体系动力响应的小参数逼近解法[J].兰州理工大学学报,2000,26(2):72-77. |
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| 作者姓名： | 杜永峰 狄生奎 尹维祥 韩建平 |
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| 作者单位： | 甘肃工业大学建筑工程系,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省科技攻关项目! (GK97-调 8) |
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| 摘 要： | 采用侧推法将一般多自由度隔震结构等效代换为双自由度振动体系 .建立了振动体系动力特性的小参数近似解 ,提出了比例及非比例阻尼模型的隔震等代体系动力响应解答形式 ,并用数值算例试算了隔震刚度比对动力特性小参数解答精度的影响
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| 关 键 词： | 基础隔震 动力分析 动力特性 阻尼 摄动法 |
| 修稿时间： | 1999-12-13 |
Samll parameter approximation for dynamic response of equivalent system of vibration isolation structure |
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| DU Yong-feng,DI Sheng-kui,YIN Wei-xiang,HAN Jian-ping.Samll parameter approximation for dynamic response of equivalent system of vibration isolation structure[J].Journal of Lanzhou University of Technology,2000,26(2):72-77. |
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| Authors: | DU Yong-feng DI Sheng-kui YIN Wei-xiang HAN Jian-ping |
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| Abstract: | A lateral pushing method is used to transform the ordinary MDOF vibration isolation structure into a 2 DOF equivalent vibration system. Small parameter approximation solution for dynamic properties and the dynamic response of equivalent system of vibration isolation is presented considering either proportional or non proportional damping models. The effect of stiffness ratio of superstructure to that of the isolation system on the accuracy of the dynamic properties is analyzed in a numerical example. |
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| Keywords: | base vibration isolation dynamic analysis dynamic properties damping perturbation method |
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