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结构-地基体系水平与扭转位移耦合效应研究

, PP. 142-148

Keywords: 相互作用体系,非线性,主共振,耦合效应,能量传递

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Abstract:

采用动力理论对地基-结构非线性相互作用体系的振动方程进行了定性分析。基于多线性随动强化模型,采用非线性有限元法求解了基础和地基土之间的水平刚度与摇摆刚度,建立了结构-地基非线性相互作用体系的力学模型。利用拉格朗日能量法推导了结构水平位移和扭转相耦合的振动方程。采用多尺度法研究了结构-地基相互作用体系的主共振。通过分析不同结构与地基间的非线性耦合及相同结构与不同地基间的非线性耦合,揭示了结构体系出现的振动能量由高阶模态水平振动向低阶模态扭转振动传递的耦合效应现象,得到了结构体系的振动特性与能量传递规律。

References

[1]  赵慧芳.结构-地基非线性相互作用空间效应的动力学行为研究[D].天津:天津大学,2000.
[2]  Emam S A,Nayfeh A H.On the nonlinear dynamics of a buckled beam subjected to a primary-resonance excitation[J].Nonlinear Dynamics,2004,35(1):1-17.
[3]  Ozhan B B,Pakdemirli M,A general solution procedure for the forced vibrations of a continuous system with cubic nonlinearities:Primary resonance case [J].Journal of Sound and Vibration,2009,325(4-5):894-906.
[4]  Yang B H,Suh C S.On the characteristics of bifurcation and nonlinear dynamic response[J].Journal of Vibration and Acoustics-Transactions of the Asme,2004,126(4):574-579.
[5]  Okuizumi N,Kimura K.Stability and bifurcations of hysteretic systems subjected to principal parametric excitation [J].Journal of Sound and Vibration,2009,324(3-5):940-953.
[6]  Estorff O V,Firuziaan M.Coupled BEM/FEM approach for nonlinear soil/structure interaction [J].Engineering Analysis with BoundaryElements,2000,24(10):715-725.
[7]  Konagai K,Ahsan R.Simulation of nonlinear soil-structure interaction on a shaking table[J].Journal of Earthquake Engineering,2002,6(1):31-51.
[8]  Jahromi H Z,Izzuddin B A,Zdravkovic L.A domain decomposition approach for coupled modelling of nonlinear soil-structure interaction[J].Computer Methods in Applied Mechanics and Engineering,2009,198(33-36):2738-2749.
[9]  Pitilakis D,Clouteau D.Equivalent linear substructure approximation of soil-foundation-structure interaction:model presentation and validation [J].Bulletin Of Earthquake Engineering,2010,8(2):257-282.
[10]  谷岩.地基-单自由度结构相互作用体系的非线性动力学行为研究[D].天津:天津大学,2000.

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