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嵌岩桩非线性动力学特性

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Nonlinear dynamic characteristics of piles embedded in rock
The nonlinear dynamic characteristics of a pile embedded in a rock were investigated.Suppose that both the materials of the pile and the soil around the pile obey nonlinear elastic and linear viscoelastic constitutive relations.The nonfinear partial differential equation governing the dynamm characteristics of the pile was first derived.The Galerkin method Wasusedto simplify the equation and to obtain a nonlinear ordinary differential equation.The methods in nonlinear dynamics were employed to solve the simplified dynamical system,and the time-path curves,phase-trajectory diagrams,power spectrum,the dynamic characteristics of the system were also considered in detail.

lateral motion of the pilenonlinear elastic materiallinear viscoelastic materialbifurcation and chaos

胡春林、程昌钧、胡胜刚

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Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,P.R.China

Department of Mechanics,College of Sciences,Shanghai University,Shanghai 200444,P.R.China

School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,P.R.China

lateral motion of the pile nonlinear elastic material linear viscoelastic material bifurcation and chaos

国家自然科学基金Shanghai Leading Academic Discipline Project

50278051Y0103

2007

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2007.11(3)
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