Godunov格式和Roe格式求解Burgers方程

说明：  求解二维亥姆霍兹方程的fortran程序，包含网格文件。(Fortran two-dimensional Helmholtz equation solving procedures, including the grid file.)

该损伤模型通过 商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂 复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结 果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit， and applied the model to an example，carbon fiber reinforced epoxy composite laminates under low velocity impact，the prediction for damage and deformation were good agreement with the experimental results．)

ansys二次开发 开发语言主要基于UIDL和APDL开发方法 来源网络(ansys secondary development source. UIDL and APDL develapment langrage.)

多姿态，多角度，有不同光照,在MATLAB中求图像纹理特征，抑制载波型差分相位调制。( Much posture, multi-angle, have different light, In the MATLAB image texture feature, Suppressed carrier type differential phase modulation.)

In this section we introduce the idea of Galerkin approximations by considering a simple 1-d boundary value problem

己知一些离散的点，使用matlab利用最小二乘法拟合(Had a number of discrete points, with linear least squares fitting)

线弹性模型，可以对一般的弹性体通过abaqus进行验证使用(Linear elastic model)

有限差分法的径向滑动轴承求解，可用于求解油膜厚度、油膜压力等(Radial sliding bearings for solving finite difference method can be used to solve the oil film thickness, oil pressure, etc.)

ANSYS水压试验疲劳apdl，对学习apdl的人有很打帮助(ANSYS the hydrostatic test fatigue apdl, learning apdl there are playing to help)

说明：  对该模型参数辨识采用递推最小二乘法，即 RLS（ recurisive least square）， 它是一种能够对模型参数进行在线实时估计的辨识方法。(The recursive least square method is used to identify the parameters of the model, that is, rls (recurisive least square), which is an online real-time estimation method for the model parameters)