摘要
基于 Hardin- Drnevich模型 ,采用非线性有限元得到基础 -地基相互作用中基础转角和弯矩之间的关系 ,建立了单自由度结构 -非线性地基相互作用模型。用平均法得到主共振定常解并讨论其稳定性。从分叉图出发讨论了结构 -地基相互作用的动力行为 ,得到了一些有益的结论。
In the paper, based on Hardin-Drnevich model, the nonlinear finite element program is applied to obtain the relationship between moment and rock angle of foundation. The computation model of structure-foundation nonlinear interaction system is derived. The method of average is used for obtaining the steady-state solution and stability performance of the primary resonance. By discussing bifurcation diagram, the dynamical behaviors of structures-foundation interaction system are analyzed. Some regularity conclusions have been drawn through the analyses of numerical examples.
出处
《振动工程学报》
EI
CSCD
北大核心
2001年第2期233-236,共4页
Journal of Vibration Engineering
基金
国家自然科学基金资助项目 (编号 :5 97780 41)
