two fredom degree

用晶闸管建立的12脉动特高压直流输电模型(12 pulse HVDC model based on thyristor)

说明：  ABAQUS二次开发—材料初始失效准则及损伤演化准则(criteria for initial failure and damage evolution of materials)

说明：  3维hashin失效准则~复合材料层合板(3-D Hashin Failure Criterion ~Composite Laminates)

说明：  六边形蜂窝自动建模插件，能在abaqus中自动建立蜂窝模型(Hexagonal honeycomb automatic modeling plug-in)

说明：  对于非线性模型的跟踪预估问题，摒弃额对非线性函数进行线性化的做法，采用无迹变换处理均值和方差的非线性传递问题。(For the tracking and prediction problem of the nonlinear model, the linearization of the non-linear function is abandoned, and the traceless transformation is used to deal with the non-linear transfer of mean and variance.)

黄永刚单晶体塑性的UMAT原始文件，不是网上流传的版本(huang-crystal plasticity)

说明：  这个程序是通过设置不同的参数来创建一个随机图，可以运行。(This program is to create a random graph for simulation.)

计量模型，garch，var，用于建立各类模型，评估，roc等等(Econometric models, garch, var, used to build various models, evaluations, roc, etc.)

abaqus经纬编织织物模型，umat子程序(ABAQUS warp and weft knitted fabric model, UMAT subroutine)

说明：  通过对导热方程的推导，利用有限体积法，在matlab进行编程模拟，阐述对流传热的机理。(Based on the derivation of heat conduction equation, the finite volume method is used to simulate in MATLAB, and the mechanism of convective heat transfer is described.)