基础-结构耦合系统受地震作用的非线性振动

英文篇名：Nonlinear Vibration of Foundation Structure Coupled System Subjected to Seismic Excitation
中文刊名：唐山学院学报
英文刊名：Journal of Tangshan College
作者：杨志安 ; 常文洁 ; 李高峰
英文作者：YANG Zhi-an ; CHANG Wen-jie ; LI GAO-feng(Key Laboratory of Structure and Vibration Engineering of Tangshan ; Tangshan College ; Tangshan 063000 ; China)
中文关键词：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
英文关键词：foundation structure coupled system ; Lagrange equation ; the method of multiple scales ; nonlinear vibration ; seismic
出版日期：2013-05-20
机构：唐山学院唐山市结构与振动工程重点实验室;
年：2013
期：03
出版单位：唐山学院学报

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-结构耦合系统的动力设计。
Based on dynamic equations of foundation structure coupled system to deal with combine resonance of foundation structure coupled system subjected to seismic excitation.Considering 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 resonance consists of three frequencies is obtained and numerical analysis is carried out.The influences 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.

引文

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