Explain-of-SAP5

对于abaqus子程序学习的初学者，这是一个学习umat的很好算例,(Abaqus subroutine for beginners to learn, this is a good example to learn umat,)

说明：  在雷达上应用卡尔曼滤波算法对目标轨迹进行预测(The application of the radar Kalman filter algorithm to predict the target trajectory)

对FFT算法的基2时析型实现，在实习时很多专业会用到(Algorithm based on FFT analysis of type 2 o)

美国汪利宏的蒙特卡洛及卷积模拟程序，可以模拟top-hat光束和高斯光束在生物组织中的传输(U.S. WANG Li-hong of the Monte Carlo and convolution simulation program can simulate the top-hat beam and Gaussian beam transport in tissue)

光纤激光器速率方程 修改数值后可直接计算(The fiber lasers rate equation)

时域有限差分方法程序，网格为非均匀剖分的(FDTD method program, a non-uniform partition of the grid)

加汉宁窗fft插值算法，计算谐波幅值、频率、相位，需输入采样频率、fft长度(hanning windows Harmonic analysis)

说明：  一维波动方程的间断有限元计算，包括网格的划分，数值积分的计算等。(Discontinuous finite element method for one-dimensional wave equation, including mesh division, numerical integration calculation and so on.)

说明：  单悬索采用多次迭代计算的方法 找形-计算 可用于输电线建模分析。(Single suspension method using multiple iterations to find form- can be used to calculate the transmission line modeling)

数值传热学Simple算法，Fortran编写(Simple using Fortran)