On the basis of energy-equivalence principle, the hysteretic structure considered is converted into a combination of a damping dissipation part and a nonlinear elastic structure.
根据能量等效的思想，把滞变结构等效为一个阻尼损耗和一个非线性弹性结构的组合。
When the structure keeps elastic except for the local nonlinearities, the fast nonlinear analysis (FNA) method is desirable for an elastic response history analysis.
当结构局部非线性而其它大部分为弹性时，方程可以采用“快速非线性分析”（FNA）方法求解。
When the structure keeps elastic except for the local nonlinearities, the so-called fast nonlinear analysis (FNA) method is desirable for an elastic response history analysis.
当结构局部非线性而其它大部分为弹性时，方程可以采用所谓“快速非线性分析”（FNA）方法求解。
The bifurcation and chaotic behavior of a parallel plate-type structure with nonlinear elastic support in axial flow were investigated.
研究了轴向流作用下板状叠层结构在非线性弹性支承下的分岔与混沌行为。
This method can deal with dynamic response of not only elastic modal structure but also rigid modal structure. Furthermore, high accuracy is produced under both linear and nonlinear excitations.
该方法不仅可以处理弹性模态结构的动力响应而且可以处理刚体模态结构的动力响应，并且不论是线性激励还是非线性激励，本文提出的计算格式都给出了很高的精度。
Geometrically and materially nonlinear analyses (GMNA) were carried out to analyze the effects of several geometric parameters on the elastic-plastic behavior of the structure.
通过几何、材料双重非线性分析，讨论主要几何参数对结构弹塑性受力性能的影响。
This paper presents an elastic nonlinear buckling analysis of a kind of steel structure hybridized by I section arch and tensile cables.
本文应用非线性有限元方法研究了索拱结构的平面内稳定问题。
This paper presents an elastic nonlinear buckling analysis of a kind of steel structure hybridized by I section arch and tensile cables.
本文应用非线性有限元方法研究了索拱结构的平面内稳定问题。
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