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- 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。
- 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。
- 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。
- There were often happened cases for beam elements with initial stress or initial strain while the geometrically nonlinear analysis was performed for the plane structure. 摘要开展平面结构几何非线性分析时经常会遇到杆件含有初始应力力或初始应变的情况。
- Based on the geometrically nonlinear theory for axially extensible beams, formulations of free vibrations in the vicinity of thermal post-buckling were derived. 基于轴向可伸长梁的几何非线性理论建立了弹性直梁在热过屈曲静态大变形附近自由振动的几何非线性模型。
- According to the large deformation features of the transporting pipe, the geometric nonlinear finite element theory has been applied to analyse the transporting system. 摘要根据矿石输送软管挠度变化很大的特点,采用了几何非线性有限元理论对输送系统进行力学分析;
- Not situated at or in the geometric center. 离心的不位于或在几何中心的
- In this model,the nonlinearity and incompressibility of rubber material,the geometric nonlinearity of large deformations in tire,and the nonlinear boundary conditions in contact areas between tire and rim or ground are taken into account. 模型中还考虑了橡胶材料的非线性和不可压缩性、轮胎大变形导致的几何非线性以及轮胎与轮辋和轮胎与路面的接触非线性边界条件。
- The model included the geometric nonlinearity, material nonlinearity and anisotropy of the cord|rubber composites, and the nonlinear boundary conditions resulting from both tire|rim contact and tire|foundation contact, respectively. 在该模型中 ,考虑了轮胎变形的几何非线性、轮胎与地面和轮胎与轮辋的大变形非线性接触、轮胎材料的非均匀性和物理非线性及橡胶基复合材料的各向异性。
- the geometrical nonlinear 几何非线性
- THE GEOMETRICALLY NONLINEAR ANALYSIS OF FOLDED PLATE LATTICED VAULT 折板网壳的几何非线性分析
- 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 geometrical representation makes the abstract concept pictorial. 几何图象使得抽象概念形象化。
- 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。
- The Geometric Nonlinear Analysis of Reinforced-Concrete Girder and Slab Bridges 钢筋混凝土梁(板)桥的几何非线性分析
- The basic principle for the geometrical design of hypoid gears is introduced. 摘要介绍了准双曲面齿轮几何设计的基本原理。
- Using this invariability,the geometrical distortion is first retrieved. 利用该不变性,可以较好地矫正几何形变。
- 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。