-
VLE_NRTL
气液平衡数据进行NRTL参数最小二乘法拟合(VLE NRTL fitting)
- 2020-10-12 23:57:32下载
- 积分：1
-
haar-fft
本程序求相关性K值大小，采用傅里叶矩阵和haar矩阵内积。(The procedures for seeking the size of the K value of the correlation, the use of the Fourier matrix and haar matrix of inner product.)
- 2012-06-19 11:24:56下载
- 积分：1
-
elasticity
说明： abaqus vumat 子程序入门
UMAT FOR ABAQUS/STANDARD INCORPORATING ELASTIC BEHAVIOUR FOR PLANE STRAIN AND AXI-SYMMETRIC ELEMENTS.(introduction to abaqus vumat subroutine)
- 2020-07-08 19:20:08下载
- 积分：1
-
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
-
D_MODEL
三维重力梯度正演程序，可根据剖分模型计算多个场分量，绝对原创！(3D Gravity Gradients calculating )
- 2011-11-10 16:34:23下载
- 积分：1
-
msh_read
读取msh文件的C语言接口，支持gambit，ICEM等网格工具绘制的网格(The interface of the MSH file with C language, support the grid drawn by gambit, ICEM and other grid tools.)
- 2020-07-11 22:48:53下载
- 积分：1
-
3803
关于非线性离散系统辨识，小波包分析提取振动信号中的特征频率，有小波分析的盲信号处理。( Nonlinear discrete system identification, Wavelet packet analysis to extract vibration signal characteristic frequency, There Wavelet Analysis Blind Signal Processing.)
- 2017-05-08 17:46:22下载
- 积分：1
-
STT753-2
塔式起重机建模文档，非常棒的商业流程和代码，可以用于ANSYS结构建模学习和工程应用实践练习，其中参数可以用户自己参考修改编写！
此.txt文档为ANSYS的命令流（类似于ForTran）(Tower crane model documentation, great business processes and code that can be used ANSYS structural modeling study and practice of engineering practice, in which parameters can be written to modify the users own reference!)
- 2011-11-26 19:41:58下载
- 积分：1
-
MATLAB
利用有限元法计算悬臂梁的实例，包含详细说明，适合用于课程设计。(Using the finite element method to calculate the cantilever instance, contains a detailed description, suitable for curriculum design.)
- 2014-10-04 08:37:38下载
- 积分：1
-
pso
粒子群算法，也称粒子群优化算法或鸟群觅食算法（Particle Swarm Optimization），缩写为 PSO。它具有精度高，收敛快等优点，广泛用于系统辨识、函数优化等领域。文件pso.m是粒子群算法辨识程序，在此基础上，需要自行编写目标函数计算程序以实现不同系统的参数辨识。(Particle swarm optimization (PSO), also known as particle swarm optimization algorithm or bird swarm foraging algorithm (Particle Swarm Optimization), abbreviated as PSO. It has the advantages of high precision and fast convergence. It is widely used in system identification, function optimization and other fields. The document pso.m is a particle swarm algorithm identification program. On this basis, it is necessary to write an object function calculation program to realize the parameter identification of different systems.)
- 2017-09-29 12:52:29下载
- 积分：1
