Numerical examples of plane problem are presented and numerical results of4-node hybrid elements have been compared with those of4-node isoparametric compatible ones. 将杂交元推广于结构拓扑优化设计,推导了拓扑优化中数值计算和敏度分析的基本方程,对等参元和杂交元的拓扑优化结果进行了对照。
Shape Modification of B-Spline Surface& Stitch of B-Spline Surfaces Based on Isoparametric Curve B样条曲面的形状修改&基于等参线的曲面缝合
Study of degeneration models of isoparametric element in finite element method; 本文提出了一种基于二次等参单元的等值线图生成算法。
Creation and application of a new type of three-dimensional isoparametric singular element with 12 nodes 12结点三维等参奇异单元的构造和应用
A finite element method with five node isoparametric element for nonlinear analysis of tension structures; 提出适合张拉结构几何非线性分析的两节点曲线单元有限元方法。
Geometric dichotomy method is innovated and used for inverse isoparametric mapping in linear finite element, of which a property is proved and served as the foundation. 在证明线性等参单元的一个几何特性的基础上,提出了线性等参单元逆变换的几何二分法。
4-D special isoparametric hypersurfaces of type ⅲ in De Sitter Space 4维DeSitterSpace中的特殊Ⅲ型等参超曲面
Isoparametric element of arbitrary quadrilateral plays an important role in finite element analysis. 等参数任意四边形单元在有限元分析中有着重要的作用。
In this paper, the incompatible displacement functions are constructed which possess completeness in Cartesian coordinates. A pair plane quadrilateral isoparametric incompatible elements are given. 本文利用直角坐标下函数的完备性来建立等参坐标下的非协调位移函数,给出了一对在直角坐标下二次完备的四边形平面等参非协调元。
Study on isoparametric finite-element integral algorithm of gravity and magnetic anomaly for body with complex shape 复杂形体重磁异常的等参数有限元积分算法研究
Dynamic Analysis of Elastic Plate Resting on Two-Parameter Foundation by Isoparametric Element 双参数地基板动力问题的等参元分析
Isoparametric Element Transformation for Finite Analytic Method 应用于有限分析法的等参元变换
In this paper, compatible isoparametric bilinear displacement approximations and the constant stress mode are employed. 文中的轴对称元采用协调等参双线性位移逼近以及分片常数应力模式。
3-D finite element analysis is done for the static and dynamic characteristics of large-scale prestressed U-shaped thin shell aqueduct with shell element and 3-D isoparametric element adopted. 采用壳体单元和三维等参单元,对大型预应力U型薄壳渡槽静动力特性进行了三维有限元分析,给出了静力分析结果,并与模型试验作了对比。
In this paper, four-nodal isoparametric element program DDKEPL by using Duncan's nonlinear-elastic model for soil is presented. 本文对土体采用邓肯-张非线性弹性模型编制了四节点等参元有限元程序DDKEPL。
An annular isoparametric element and an annular transition element are developed in this paper. 本文发展了环形等参数元素和环形过渡元素两种新元素。
In addition, the article also discusses the usage of isoparametric element for solving temperature distribution in heat conduction. 此外,还讨论了应用这种等参数单元求解热传导温度场分布的方法。
By Using the tension spline function, a type of twelve-nodes tension isoparametric finite element has been constructed. 本文利用张力样条函数,构造了一种十二节点张力等参有限单元。
Application of Isoparametric Finite Element Method in Planar Curved Beam Bridge 等参有限元法在平面曲线梁桥中的应用
Research of an isoparametric spectral element method 等参谱元方法的研究
In this thesis, isoparametric hypersurfaces in Lorentzian space forms are studied. 本文研究洛兹空间型中的等参超曲面。
To improve the precision and efficiency of nonlinear analysis, a three-node beam element based on isoparametric formulations is introduced. The stiffness matrices considering geometric non-linearity and distribution of Gauss points are given. 为了提高非线性分析的计算精度和效率,详细介绍了基于等参公式的三节点梁单元,推导了这种梁单元考虑几何非线性的切线刚度矩阵,并给出了高斯积分点的分布。
An eight-node isoparametric element of composite sandwich plates using Reissner Theory was developed, which provides a relative simple finite element method. 本文用Reissner理论构造了一种八节点等参单元,对于表层较薄、夹芯剪切模量较大的复合材料夹层板,提供了一种相对简单的有限元计算方法。
In the paper, the united forms of potential interpolation functions, source density interpolation functions, elemental stiffness matrixes and elemental mass matrixes for the Silvester High-order Finite Element Method and the High-order Isoparametric Finite Element Method are developed. 本文在二维线性和非线性恒定电磁场范围内,对Silvester高阶有限元方法和高阶等参有限元方法的位插值函数、场源插值函数和单元矩阵方程式的统一形式进行了推导。
In this paper, the elasticity finite element method is used to built the three-dimension model with eight-nodes hexahedron isoparametric elements. 本文采用弹性力学有限元方法,建立了8节点六面体等参数单元的三维应力分析有限元模型。
The dynamic analysis of this small substructure system was made by FEM with quadrilateral isoparametric elements. 用等参数有限元法对这个小结构系统进行动力分析。
Especially, Lorentzian isoparametric hypersurfaces of type ⅱ in S_1~ 4 are studied. 特别地,对洛伦兹球面S1~4中的Ⅱ型洛伦兹等参超曲面进行了研究。
Isoparametric finite element analysis of large elastic-plastic strain problems 弹塑性大应变问题的等参数有限单元分析
A mixed finite analytic method is given based on the synthesis of the finite analytic method and the finite element isoparametric method. 文中综合有限分析法和有限元法中等参单元技术,提出有限分析混合法。
Taking the planar four-node isoparametric element as example the detailed finite element formulations are developed. 并就常用的平面四节点等参元讨论了其具体的有限元列式。