PID-algrithm

程序是庄茁大神经典的Johnson-Cook模型隐式算法 另外包括一个 ABAQUS-Standard用户材料子程序实例的文档说明(The program is a classic Johnson-Cook model implicit algorithm and it includes documentation of an ABAQUS-Standard user material subroutine example)

四面体网格划分的有限元计算源代码，在将变形体划分为四面体后，输入节点坐标，程序利用弹塑性本构，将载荷和位移关系转变为线性方程组，是一个很好的求解简单三维变形体的程序，还可输出单元变形量，应力等。(Tetrahedral mesh of the finite element method source code, in the deformed tetrahedron is divided into, the input node coordinates, the program using elastic-plastic constitutive, will be the relationship between load and displacement into linear equations, is a very good Solving a simple three-dimensional deformation body procedures, but also the output unit deformation, stress and so on.)

说明：  任意给定一个M进制的数X，利用栈实现数值转换。(Given an arbitrary number of M band X, use the stack to achieve numerical conversion.)

大规模配电网118节点的潮流计算程序，辐射状网络，含原始数据。(Large-scale distribution network 118 nodes of the power flow calculation procedures, radial network, with the original data.)

快拍数不同时，DMI直接矩阵求逆算法进行波束形成的(The snapshot number is not the same, DMI direct matrix inversion algorithm beamforming)

计算矢量拉盖尔高斯光束中古伊相移产生的角衍射，及其与能流分布的关系。(The Poynting vector)

说明：  基2基4基8以及分裂基的fft算法，代码效率很高。是难得一见的好代码。应用范围很广。(Radix-2-4-based 8 and split fft-based algorithm, a high code efficiency. Is a rare good code. Application of a very wide scope.)

说明：  3跨每跨35米桥梁响应的车桥耦合程序，使用Fortran编写(3 cross each bridge 35 meters across the bridge coupling procedures to respond)

计算水声传播的快速场(FFP)程序，基于传播矩阵，迭代和快速傅里叶变换方法。(underwater acoustic field computing Fast FIELD Program, based on TMM, FFT etc.)

用Fluent VOF模型模拟单个小水滴落入盛水的水杯之中(Fluent VOF model simulations using a single drop falling into a water glass)