membrane element

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。

Error estimates of a nonconforming membrane element and its application for obstacle problem

一个非协调膜元的估计及其对障碍问题的应用

High Accuracy Analysis for a Nonconforming Membrane Element

一个非协调膜元的高精度分析

The three-dimensional model of the main tower was established with block element and membrane element to analyze its distortion.

建立了蓉湖大桥主塔的空间分析模型，采用块元和膜元对蓉湖大桥主塔进行空间模拟分析。

Reverse Osmosis Desalting Device: it adopts and consists of the most advanced reverse osmosis membrane element, high-pressure pump, instruments and dosing pump produced at home or abroad.

反渗透脱盐装置是采用国内外生产的最先进的反渗透膜元件、压泵、表、药计量泵组装而成的。

A compound model including discrete Kirchhoff theory ( DKT) pate shell element and membrane element is introduced into virtual work rate principle of elasto plastic finite deformation.

将离散Kirchhof理论（DKT）平板弯曲单元和薄膜单元的组合模型引入到弹塑性有限变形的虚功率增率型原理中。

Three dimensional finite element analysis of radial tire rolling resistance is carried out with MSC. MARC software. Tire core, thread ply and tire bead are simulated with the rebar membrane element and the rebar solid element, and rubber is described with Yeoh material mode.

MARC软件对子午线轮胎的滚动阻力进行了三维有限元分析计算，对轮胎的胎体、带束层、胎圈等部位采用了rebar膜单元以及rebar实体单元进行模拟，采用Yeoh材料模式描述橡胶材料。

multi-stage reverse osmosis unit includes high-pressure pump, reverse osmosis membrane element, membrane housing ( pressure vessel), frame and so on.

反渗透装置主要包括多级高压泵、反渗透膜元件、膜壳（压力容器）、支架等组成。