aphysicaltool

F-K域偏移法和相移法偏移程序（C语言）(FK domain migration method and the phase- shift method migration program (C language))

流体力学SIMPLE算法（C语言编程实现）需自己设定边界条件(SIMPLE algorithm)

说明：  最小二乘法拟合曲线的一个小程序，采用C++程序，(Least-squares fitting curve C++ program)

一个非线性方程的matlap程序，杜芬方程的变异(A nonlinear equations matlap program, variation of Duffing equation)

通过具有随机结构参数的四分之一车辆模型研究了具有不确定性结构参数的车辆在受到来自道路的随 机激励作用下的振动响应问题。将簧上质量、簧下质量、悬挂阻尼、悬挂刚度以及轮胎刚度均认为是随机变量。将路面的不平整引起的对车辆的激励看作高斯随机过程并通过简单指数功率谱密度来建立力学模型。(By a quarter vehicle model with random parameters studied vehicle structure uncertain structural parameters of the vibration by the random excitation the road response under question. The sprung mass, unsprung mass, suspension damping, suspension stiffness and rigidity of the tire are considered to be random variables. The excitation caused by uneven road vehicle regarded as Gaussian random process and to create a mechanical model of a simple exponential power spectral density.)

用C++写的矩阵鞍点求法(C wrote saddle point Matrix Method)

利用abaqus软件建模，然后将inp文件导入flac软件中。(ABAQUS software is used to model, and then the InP file is imported into the FLAC software.)

说明：  克里金、反距离插值算法_栅格图等值线填充等(Kriging, inverse distance interpolation algorithm _ isogram filled grid map, etc.)

this is fft header file for fast fourier transform. with this file, you can compute frequency spectrum zero to tow pi.

说明：  本书用c语言编写了科研和工程中最常用的166个算法,这些算法包括复数 运算、... 4.3.1 【算法23】求一般复矩阵的逆 4.3.2 【算法24】求对称正定矩阵的(good study)