当量正态化程序，风险可靠度计算程序

用于Abaqus 二次开发 用户子程序 umat及vumat(Abaqus /umat and vumat)

说明：  采用LBM方法模拟管道中考虑重力条件的流动过程。(The LBM method is used to simulate the flow process in Pipeline Considering Gravity conditions.)

pscad中做的三电平svpwm模型，希望对大家有用(doing a three level svpwm model pscad in the hope that useful)

说明：  参数化电离层模型：用于计算电离层电子密度(Parameterized Ionosphere Model (PIM): Calculate the ion density)

二阶微分方程组，采用龙格库塔法求解，将二阶降为一阶之后在求解。(Second-order differential equations, using the Runge-Kutta method to solve the second-order reduced to an order after solving.)

给定求解区间，用最小二乘法给出函数的零点，并给出迭代次数(Given the solution interval, the zeros of the function are given by the least square method, and the number of iterations is given.)

FORTRAN95程序设计教程,彭国伦带标签版，很好用哪(this book is really good because it has label making the reading easier.)

在fortran环境下编写ugrain子程序，可以通过MARC来调用，实现板材成形中组织演化的可视化(Written in fortran environment ugrain subroutines can be invoked by MARC, realized in sheet metal forming microstructure evolution of visualization)

creep 子程序编程规范示例，在ABABQUS用户使用手册有清晰说明与注释(Creep subroutine programming specification example)

进行潮汐调和分析的程序，比较实用，适合初学者的学习。(For tidal harmonic analysis procedure more practical for beginners to learn.)