本文用有限元素法和对于几何非线性结构问题的增量法求解组合结构强度与稳定性问题。
This paper is devoted to solving strength and stability problems of a built structure by using the finite element method and the increment method for the geometrical nonlinear structural problem.
推导了考虑几何非线性项的结构形状优化位移灵敏度和应力灵敏度计算列式。
This thesis deduces computational formulations of displacement sensitivity and stress sensitivity in structural shape optimization considering geometric nonlinear element.
该方法能直接应用到大型复杂杆系结构的几何非线性问题的求解中。
This method can be applied to the solution of geometrically nonlinear problems for complicated structures.
计算结果表明，广义协调元对于求解结构几何非线性问题同样具有精度高、收敛快等优点。
Numerical results indicate that the generalized conforming element has the advantages of high accuracy and uniform convergence to geometrically nonlinear problem of structures.
本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on the geometrical nonlinear finite element (GNFE) theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
大跨网壳结构具有高度的几何非线性，结构设计一般由整体稳定性控制。
The structural design of large-span latticed shell is controlled by global stability due to the geometric nonlinear property.
分析材料非线性、阻尼、初始几何缺陷、初始静荷载等因素对结构动力稳定性的影响。
The effects of material nonlinearity, damping, initial geometric imperfection and initial static load on structure dynamic stability have been analyzed.
本文是围绕桥梁结构几何非线性分析与软件开发而展开的，并重点针对悬索桥进行分析。
This paper concerns geometric nonlinear analysis of bridge structure and software development, mainly concentrating on the analysis for suspension bridge.
该文应用具有平衡迭代格式的荷载增量法对非保守力作用下鞭天线结构的几何非线性问题进行了有限元分析；
The geometric nonlinear problem of whip antenna structure underthe action of nonconservative loads is analyzed by means of the loading incremental method which has the balanceiteration format.
全文主要包括两大部分：悬索桥主缆线形计算部分和桥梁结构几何非线性分析部分。
It consists of two parts, calculation of cable curve for suspension bridge and geometric nonlinear analysis of bridge structure.
本文采用混合分析法进行空间组合结构施工阶段的几何非线性稳定计算。
The paper applies the mixed analysis to calculate the geometric nonlinear stability of space composite structures at construction stage.
详细描述了非线性控制理论几何结构原理的精确线性化算法的过程。
In all details, this paper introduces the algorithmic procedure on the geometric structure principium of nonlinear control theory.
本文采用有限元法分析考虑前屈曲几何非线性影响的结构稳定性。
This paper provides the structural stability analysis considering geometric nonlinearity on the prebuckling path by the finite element method.
根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。
Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.
基于已完成的G550冷弯薄壁型钢屋架结构承载力试验，采用通用有限元软件ANSYS，建立考虑材料和几何非线性的分析模型。
Based on the experiments of G550 cold-formed thin-walled steel roof truss structures, an analysis model considering geometry and material non-linearity is established using general FEM software ANSYS.
本文给出了复指数信号模型非线性最小二乘解的几何结构。
The geometric structure of nonlinear least squares solution for signals by complex exponents is offered in this paper.
利用几何非线性有限元方法研究了空间网壳结构的稳定性。
The stability of spatial latticed structures is studied by use of nonlinear geometric finite element method.
索穹顶结构是大变形柔性组合结构，其受力分析属于几何非线性问题，求解较复杂。
Cable dome is a large deformation composite structure consisted of flexible cables. Its analysis is a geometric nonlinear problem and is difficult in its solution.
倾斜吊杆悬索桥的结构分析包含“变作用形式”和大位移两个几何非线性问题。
The structural analysis of inclined boom suspension bridge includes following two geometric nonlinear problems, the changing working structure form and the large flect.
另外，还建立了考虑双层网格扁壳结构几何初始缺陷影响的非线性弯曲方程。
Besides, he also established the nonlinear bending equations considering the influence of initial geometric defects in the double-deck reticulated shallow shell structures.
斜拉桥和斜拉索是几何非线性明显的结构。
Cable-stayed bridge and stayed cable are obviously geometrically nonlinear structures.
考虑深海柔性张力腿平台的几何非线性特征，建立柔性平台结构非线性随机振动响应分析方法。
Considering the geometrical nonlinearity, a new method for the nonlinear random vibration of flexible Tension Leg Platform (TLP) is presented in this paper.
在小来流动压情况下，结构几何非线性引起了切尖三角翼的LCO，计算结果和试验值吻合较好。
For lower inflow dynamic pressures, the LCO of the delta wing is caused by structural geometric nonlinearity, and the numerical results correlate well with experimental data.
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。
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.
基于上述理论，开发了可考虑几何非线性效应的细长结构稳定性分析软件。
Based on the above theory, finite element software is developed to analyze the geometrically nonlinear stability of slender structure.
从结构的几何非线性分析着手，研究截面为三角形的空间格构式斜腿刚架的平面内整体稳定。
Based on the geometric non-linear analysis, the in-plane global stability of Space Lattice Tilted Column Frame of Triangle Section(SLTCF)is studied.
金属拱型波纹屋盖结构在力学性能上具有很强的几何非线性，结构设计必须考虑几何非线性的影响。
Arched corrugated metal roof exhibits strong geometrical nonlinearity when loaded, which has often been ignored in structural design.
根据土体具有的非线性特征，运用分形几何理论提出了7项定量表征土体微结构状态的分维指标。
According to the nonlinear features of soil, 7 fractal dimension parameters to identify structure state of soil are suggested with the help of fractal theory.
本文是针对大跨径板桁结合斜拉桥的空间几何非线性静力分析及结构的动力分析两个方面而展开研究工作的。
This paper is concentrated on the space geometric non-linear static analysis and vibration analysis of the long span plate-truss composite cable-stayed bridges.
本文采用退化的等参壳元分析了复合材料板、壳结构的几何非线性特性。
Applying degenerate isoparametric element, this paper has studied geometrical nonlinear response of composite plates and shells.
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