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- Applying degenerate isoparametric element, this paper has studied geometrical nonlinear response of composite plates and shells. 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。
- The paper deduces tangent stiffness matrix and set up geometrical nonlinear model of construction control calculation of the cable-stayed bridge. 推演了索单元的切线刚度矩阵,建立了斜拉桥施工控制计算的几何非线性模型。
- Simultaneously, the meshfree formulations using MF method and PM for linear elastostatics problems and geometrical nonlinear problems are obtained. (2)本文通过采用MFGA实现了形状优化设计的主要框架。该方法不需进行采用基于梯度的优化方法时所必须的设计灵敏度分析。
- The internal forces in tensile membrane structures were analyzed using geometrical nonlinear finite element theory using curved quadrilateral isoperimetric 8 node elements. 根据几何非线性有限元理论,采用8节点曲面四边形等参单元,分析了张力膜结构内力。
- Based on CR formulation superposition method for geometrical nonlinear analysis,the catenary cable element was used to simulate stay cable. Nonlinear influence for Sutong Bridge whose main span reaches 1 088 m during construction was studied. 基于几何非线性分析的CR列式全量法,采用悬链线索单元模拟斜拉索,分析主跨为1 088 m的苏通大桥施工过程几何非线性影响。
- Abstract: The internal forces in tensile membrane structures were analyzed using geometrical nonlinear finite element theory using curved quadrilateral isoperimetric 8 node elements. 文章摘要: 根据几何非线性有限元理论,采用8节点曲面四边形等参单元,分析了张力膜结构内力。
- Based on the geometrical nonlinear finite element (GNFE) theory, thepaper use a curved quadrilateral isoperimetric element with 8 nodes to makeprograms of computer aided the internal fo. 本文根据几何非线性有限元理论,采用8结点曲面四边形等参单元,编制了用于张力膜结构内力分析的有限元程序。
- Secondly, based on the result of its static analysis, the static stability of single-layer ellipsoid reticulated shells was thoroughly analyzed with geometrical nonlinear finite element method. 在静力分析的基础上,本文采用非线性有限元分析方法,深入全面地分析了该网壳结构的静力稳定性能。
- 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. 根据几何非线性有限元理论,采用8节点曲面四边形等参单元,分析了张力膜结构内力。
- This is mainly because of geometric nonlinearity. 这主要是由于几何非线性所致。
- The geometrical nonlinearities includes cable sag effect, beam-column effect and large displacement effect. 程序DNFEA在几何非线性方面,可以考虑垂度效应、梁柱效应和大位移效应,在材料非线性方面,可以考虑钢管混凝土、普通混凝土和钢材的非线性特性。
- Both geometrical nonlinearity and elastoplastic were considered in the element model. 单元模型中考虑几何非线性和材料非线性的双重影响。
- geometrical nonlinear finite element 几何非线性有限元法
- The concrete slabs strengthen the torsion buckling capacity of the steel grids and enhance the minimum geometric nonlinear buckling load. 混凝土面板加强了网架的抗扭转屈曲能力,提高了最小几何非线性屈曲荷载。
- The contact between drillstring and bore hole wall in the process of horizontal drilling is of large area and geometrically nonlinear. 长中半径水平井钻柱与井壁的接触问题是大面积接触的几何非线性问题。
- Finally, the effects of geometrical nonlinearity, material nonlinearity and static wind load nonlinearity on the aerostatic stability for long span bridges are analyzed. 最后 ,以一座主跨 10 0 0米的斜拉桥为例 ,分析了结构几何非线性、材料非线性和静风荷载非线性对大跨径桥梁空气静力稳定性的影响。
- The computation of cars running on monocable circulating ropeway is a problem of dyn amic ana- lysis for geometrically nonlinear continuous systems. 单线循环式索道车斗运行过程的模拟计算;是个几何非线性连续系统的动力分析问题.
- In engineering structures, geometrically nonlinear problems have always been hot issues of engineering and academic circles of home and abroad. 在工程结构中,几何非线性问题一直是国内外工程界、学术界的一个热点问题。
- A geometrically nonlinear critical-point-Eulerian theory is presented for analysis of stability of the trusses with medium oblatenesses. 研究了扁桁架结构的稳定性问题,提出了中等扁度桁架稳定分析的几何非线性临界点-欧拉理论。
- Geometrical theorems grew out of empirical methods. 几何定理是从经验得出的。