| 基础-结构耦合系统受地震作用的非线性振动 |
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| 引用本文： | 杨志安,常文洁,李高峰.基础-结构耦合系统受地震作用的非线性振动[J].唐山学院学报,2013,26(3):1-4. |
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| 作者姓名： | 杨志安 常文洁 李高峰 |
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| 作者单位： | 唐山学院唐山市结构与振动工程重点实验室,河北唐山,063000 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 以基础-结构耦合系统受地震作用的动力学方程为基础，考虑系统的固有特性和地震激励特征，研究基础-结构耦合系统受地震作用的组合共振问题。利用非线性振动的多尺度法，求得系统三频率组合共振的响应曲线，并分别进行数值计算。分析阻尼系数、地基参数、非线性因子和小参数等对共振的影响。计算结果可用于基础一结构耦合系统的动力设计。
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| 关 键 词： | 基础-结构耦合系统 拉格朗日运动方程 多尺度法 非线性振动 地震 |
Nonlinear Vibration of Foundation Structure Coupled System Subjected to Seismic Excitation |
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| YANG Zhi-an
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CHANG Wen-jie
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LI GAO-feng.Nonlinear Vibration of Foundation Structure Coupled System Subjected to Seismic Excitation[J].Journal of Tangshan College,2013,26(3):1-4. |
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| Authors: | YANG Zhi-an CHANG Wen-jie LI GAO-feng |
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| Affiliation: | (Key Laboratory of Structure and Vibration Engineering of Tangshan, Tangshan College, Tangshan 063000, China) |
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| Abstract: | Based on dynamic equations of foundation structure coupled system to deal with com- bine resonance of foundation structure coupled system subjected to seismic excitation. Consider- ing the nature characteristics and the seismic excitation of the system, by means of the method of multiple scales for nonlinear vibrations, the amplitude frequency response curve of combine reso- nance consists of three frequencies is obtained and numerical analysis is carried out. The influ- ences of damping, foundation parameters, nonlinear factor, and small parameter on the system are analyzed. The results can be used for dynamical design of foundation structure coupled system. |
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| Keywords: | foundation structure coupled system Lagrange equation the method of multiplescales~ nonlinear vibration seismic |
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