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method-of-moment
美国大牛哈林登编写的计算电磁场的矩量法著作,对学习矩量法有帮助(method of moment to Calculate the electromagnetic field)
- 2021-02-21 12:59:42下载
- 积分:1
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XFEM-code
用于计算裂纹的扩展有限元程序,Matlab编写(Extended finite element program used to calculate the crack, Matlab prepared)
- 2012-12-05 17:22:08下载
- 积分:1
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ghuif
交错网格PML弹性波模拟地震波形的c语言程序(Staggered grid PML elastic wave seismic waveform simulation)
- 2014-11-28 20:32:23下载
- 积分:1
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xcorr
实现互相关运算 C实现,实现互相关运算 C实现(cross correlation C code implementation)
- 2010-01-10 16:49:14下载
- 积分:1
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ABAQUS+UMAT+FORTRAN
ABAQUS中用户材料子程序UMAT的开发主要解决两方面的问题:本构模型的建立和积分算法的选择。
本文主要研究非线性材料的UMAT实现方法,并重点研究其迭代算法部分,目前,用户材料子程序UMAT的迭代算法主要是常刚度法,常刚度法的优点在于算法原理较简单,程序编写较方便,缺点是当遇到复杂非线性材料时,其迭代次数较多,收敛速度也较慢,在这个情况下,本文采取的是一种迭代次数较少且收敛速度较快的切线刚度法,具体就是采用FORTRAN语言编制了基于Von-Mises模型的接口程序,并采用切线刚度算法,通过与ABAQUS自带本构关系计算的结果相比较,验证其正确性。(This paper studies the user subroutine UMAT of ABAQUS development methods, the use of FORTRAN language isotropic hardening material model of the interface program, studied the effects of such material is extremely elastic-plastic constitutive relation method.
This article UMAT tightly around the secondary development of technology, the first principle of its interface detail, and then for the theory of nonlinear finite element incremental stiffness of the regular tangent stiffness method and the theory of algorithms to do an in-depth analysis of deduced a regular tangent stiffness and rigidity of the law of the specific expression of algorithm theory, and then the preparation of the two algorithms, respectively, of the UMAT program, and finally the establishment of a specific model checking, bringing with ABAQUS elasto-plastic constitutive relation of the calculated results compared to verify the correctness of the two.)
- 2020-12-05 21:59:24下载
- 积分:1
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PMFFTaddF
PMF FFT捕获技术捕获性能仿真,并与改进的捕获技术捕获性能比较(FFT PMF capture technology capture performance simulation, and capture performance comparison with the improved capture technology)
- 2015-06-17 14:27:53下载
- 积分:1
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numerical-methods
数值方法的5个重要的算法:
1.[Dirich.m] 求解拉普拉斯方程的狄利克雷方法. 用于偏微分方程的数值解
2.[Hamming.m] 汉明方法是用来修正微分方程的多步预测。
3. [Milne.m] 米尔恩 - 辛普森差分方程求解方法,用于预测校正方法。
4. [Rkf45.m]龙格 - 库塔 - 沃尔伯格错误控制和步骤的方法求解微分方程的近似解
5.[Romber.m]著名的龙贝格积分源代码。计算结果存在并显示为下三角矩阵。(Numerical Methods in five of the more important algorithms:
1. [Dirich.m] to solve the Laplace equation Dirichlet method for the numerical solution of partial differential equations
2.[Hamming.m] Hamming method is the multistep forecast corrected differential equations.
3. [Milne.m] the Milne- Simpson method as a differential equation solver used forecast correction method.
4. [Rkf45.m] Runge- Kutta- Wahlberg error control and step method for solving differential equations approximate solution
5. [Romber.m] the famous Romberg integral source code numerical integration, the presence of computable results show a lower triangular matrix.)
- 2013-03-09 01:35:19下载
- 积分:1
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DACE-AMATLABKriging
克立格插值工具箱介绍,用于计算克里金插值计算问题(Kriging Toolbox introduced Kriging interpolation calculation is used to calculate)
- 2016-05-03 17:24:56下载
- 积分:1
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shy1
自适应滤波器的LMS算法实现,主要实现滤波和算法的方法。(adaptive filter)
- 2011-05-18 14:49:17下载
- 积分:1
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EM
说明: 自己编写的期望最大化(EM)算法的MATLAB实现,里面有较为运行方法和程序说明,对新手有很好的帮助(
I have written the expectation-maximization (EM) algorithm in MATLAB, which has run more methods and procedures described, there is a good help for the novice)
- 2014-02-09 17:12:01下载
- 积分:1