isoparametric

A semicircle columnar eight nodes isoparametric element

一种半圆柱体8节点等参单元

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The Analysis of Stiffened Spheric Shell Using Stress Hybrid Shell Element and Isoparametric Curved Beam Element

加肋球壳应力杂交元与等参弯曲梁元分析

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Analysis of Mindlin plate on two-parameter elastic foundation using isoparametric elements

双参数弹性地基上Mindlin板的等参元分析

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By employing eight-node isoparametric elements, an ordinary solution and also an elastic solution of journal bearing with finite length under heavy loading conditions have been obtained.

文中以有限长的径向轴承为例，采用矩形8节点等参有限元，获得了刚性解和重载下的弹性解。

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The general formulas of shape functions for the higher serendipity isoparametric elements with variable nodes

高次变节点Serendipity等参单元的形函数通用公式

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A conformal map based isoparametric method for kinematic path generation is proposed.

基于调和映射技术，提出复杂网格曲面上机构运动轨迹参数化生成的一般方法。

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In this paper, two types of isoparametric finite element are used to predict surface pressure distribution on the three dimensional wing which are placed in the subcritical steady flow by the variational FEM.

本文使用了两种类型等参元，通过变分法，计算了三维机翼亚临界定常位势流中的压力分布，计算结果与试验结果符合较好。

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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.

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Based on the 8-node isoparametric element of m edium/ thick plate, this paper builds up a element by means of introducing generalized con forming condition of shear strain and displacement.

在适用于中厚板的八结点等参数平板单元的基础上，通过引入剪应变与位移的广义协调条件，建立了一种平板单元。

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Traditional isoparametric elements are usually sensitive to various curved or straight edge mesh distortion.

目前普遍采用的传统等参元族对网格的曲边、直边畸变均十分敏感.

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A new generalized conforming isoparametric element is formulated to arbitrary irregular quadrilateral for plane stress analysis.

根据线性边界力状态下的广义协调条件,对任意不规则四边形单元构造出一种广义协调等参元.

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In this paper, the efficient quadratic isoparametric boundary element and the multi-region technique were adopted to solve the macroscopic elastic modulus of a biphase medium with random order.

本文采用高效率的二次等参边界元及子域法求解了随机双相介质的宏观弹性模量。

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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。

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In this paper, a modified two-dimensional isoparametric element for curved thick shell is proposed based on reference [ 1]. Using the element, geometric nonlinear analysis of laminated composite shells of revolution subjected to axisymmetric load is conducted.

本文以文〔1〕为基础，提出了一种修正的二维曲壳等参元，并用之分析了承受轴对称荷载的层会复合材料旋转天的几何非线性问题。

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The Application and Its Accuracy of Singular Quadratic Isoparametric Element

等参奇异裂纹单元的研究等参数畸变元在计算带裂纹结构应力强度因子中的应用和精度

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Elements based on QACM are less sensitive to mesh distortion than the traditional isoparametric elements.

与传统的等参坐标方法相比,采用四边形面积坐标构造的单元对网格畸变不敏感.

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In this method, the whole area is divided into many quadratic isoparametric element by means of finite element method, then the contour line in each isoparametric element is generated, thus the whole contour is assembled.

该算法根据有限元法将整个区域分割成多个互相连续的二次等参单元，通过生成每个等参单元内的等值线，进而生成整个区域内的等值线。

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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.

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Axisymmetric Isoparametric Quadratic Boundary Element Analysis of Piston Temperature Field of Diesel Engines

内燃机活塞温度场二次等参轴对称边界元分析

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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

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The convergence of tetrahedral isoparametric element is analysed in this paper, and the optimal H~ 1 error estimate is obtained, then it is used to solve 3-dimensional 2-order homogeneous Dirichlet problem on surface domain.

本文的主要内容是讨论了四面体等参元，分析了其收敛性并给出了最优H~1误差估计，并把它应用到曲面区域的三维2阶齐次Dirichlet问题。

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Numerical examples show that the present scheme exhibits excellent performances in computation efficiency and accuracy when compared with the QAC element using numerical integration and the isoparametric element.

通过算例比较了面积坐标单刚解析式、数值积分方法以及等参元的计算效率和精度。结果表明基于面积坐标方法的单元刚度矩阵解析式在这两方面确实具有明显的优辨。

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An improved 3-D 20-node isoparametric singular element with quater-points and displacement method are used to calculate SIF KI and its variation and distribution for inside corner crack of nozzle. The relationships between K I and geometric parameters of crack and structure are analyzed.

用改进的1/4边中节点三维20节点等参奇异元和位移法计算了球接管内壁角裂纹的应力强度因子K1及其变化分布规律，分析了K1与裂纹及结构的几何参数关系。

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To improve the precision of one-step forming simulation and avoid shearing closedown of unit, the currently used method was improved by proposing the model of surface spreading four-node isoparametric membrane element and adopting partial reducing integral technology.

为了进一步提高一步成形模拟的计算精度和避免单元的剪切闭锁，提出改进型曲面展开四节点等参膜单元模型，即在单元内力计算中采用了局部减缩积分技术，对现有算法进行了改进。

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Stress Analysis of Connecting Rod in Diesel Engine by Isoparametric Quadratic Boundary Element Method

柴油机连杆应力二次等参边界无数值分析

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It was shown that Compared with finite element method, boundary element method is more accurate, needs less cpu time and data preparation, especially with isoparametric quadratic element.

结果表明，边界元法分析活塞温度场，不仅计算准备工作量比有限元大为减少，而且精度高、计算时间短，尤其采用二次等参元后，其优点更加突出。

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Combining with three nodes isoparametric axial force element, the new element can be used to accurately calculate the shear flow action between bar and skin in thin-wall structure.

它与三节点等参轴力杆单元组合时可以精确地模拟薄壁结构中杆与蒙皮之间的剪流作用。

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Isoparametric element of arbitrary hexahedron plays an important role in element analysis.

内容摘要等参数任意六面体单元在有限元分析中有着重要的作用.

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Eight-nodded curvilinear quadrilateral isoparametric shell element is used both in the FEM and in the BEM.

在有限元方法和边界元法中均采用了八结点曲面四边形等参单元.

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Computing 3-D volume with quadrangle isoparametric element method

计算三维体积的四边形等参元方法

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