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MYFEM
有限元求解柏松方程。本文采用FORTRAN语言编制程序。程序中大部分变量采用有名公共区存储方式存储,这样可以减少内存占用量。
IFG:生成有限元网格信息,即元素节点局部编码与总体编码对照表,节点实际坐标,边界节点编码与边界点上的已知值
GKD:生成总刚一维存储对角元的地址,计算总刚一维存储长度
FIXP:设置已知节点函数值
GK(NI,NJ,ADJ,AIJ):单元刚度矩阵计算
GF(NI,N,M,LE,YI,FE):单元列阵的计算
AK(I,J,AIJ):总刚度矩阵元素迭加
QEB:总刚度矩阵和总列阵合成
BDE:边界条件处理
SOLGS:Gauss-Seidel迭代法求解方程组
UDIFF(NI,NFLAG,UDIF,LE,ADJ):标准元素内形状函数导数计算
DIFF:节点上 , 加权平均
(In this program, FEM was used to solve the possion equation. It is implemented through FORTRAN)
- 2009-05-22 17:22:56下载
- 积分:1
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111
对加速度数据进行二次积分,最终得到位移数据。(Double integration of acceleration data and the final displacement data.)
- 2020-11-27 15:59:30下载
- 积分:1
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牛顿迭代法求解非线性方程组
说明: 牛顿法又称牛顿-拉弗森方法(Newton-Raphson method),是一种在实数域和复数域上近似求解方程的方法。本程序收敛速度快,迭代步数可取大一些(Newton method, also known as Newton-Raphson method, is an approximate method for solving equations in real and complex fields. The program has fast convergence speed so the number of iteration steps can be larger.)
- 2019-05-13 21:08:38下载
- 积分:1
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MatlabMie
利用Mie散射原理计算多层介质球的散射特性(Principles calculation using Mei scattering scattering properties of multilayer dielectric sphere)
- 2011-05-28 10:33:04下载
- 积分:1
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f1
说明: 这是几个常用的测试函数,通过这个测试函数可以比较算法性能的优劣。(This is a test of several commonly used functions, through this test function can compare the algorithm performance is good or bad.)
- 2009-07-05 01:37:14下载
- 积分:1
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two-FVM
本程序是采用有限体积法求解二维对流扩散方程的经典程序。程序里包含各种离散方法,划分网格方法等。适合CFD初学者阅读。(The program is two-dimensional finite volume method for solving convection-diffusion equation of the classic program. Program includes a variety of discrete methods, meshing methods. CFD for beginners)
- 2021-03-23 00:19:15下载
- 积分:1
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simulink
求非线性系统的相平面轨迹、平衡点时,编写采用一步仿真计算状态轨线斜率的函数M文件(Phase plane trajectory of nonlinear systems, the equilibrium point, write step simulation state rail line slope function M)
- 2013-03-08 19:51:53下载
- 积分:1
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Abaqus-Usdfld
有限元计算软件Abaqus USDFLD子程序在复合材料中强度分析中的应用。(Finite element analysis software Abaqus USDFLD subroutine in the composite material strength analysis applications.)
- 2016-07-03 21:22:32下载
- 积分:1
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塑性模型,适用于混凝土高温本构
可以对高温状态下的混凝土材料进行准确的塑型模型构建(It can be used to construct accurate plastic model of concrete under high temperature)
- 2017-11-11 12:30:52下载
- 积分:1
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Program33_waveguide
二维脊形光波导的FDTD仿真,能轻易修改波导尺寸和波导介质,,对硅等高折射率的波导求解正确(fdtd simulation of optical waveguide)
- 2020-09-30 20:37:43下载
- 积分:1