功率的自然分布和经济分布—————完成

轮胎公式中的魔术公式89，适合用于汽车动力学的建模，simulink搭建，参数来源于网上(magicformulation of tire)

说明：  abaqus中vumat下铝的fortran本构，二次开发，只适用于初学者，非常简单的那种(FORTRAN constitutive model, secondary development, elementary study)

主要用于振动信号的频谱分析，用于判断信号中的故障频率(the fft analysis of the vibration signal)

说明：  ABAQUS材料本构的二次开发讲解，详细说明。(Introduction to the secondary development of ABAQUS material constitutions.)

说明：  PSCAD柔直输电模型，送端和受端各包含2台发电机，供学习参考(The flexible transmission model of PSCAD includes two generators at the sending end and the receiving end for reference.)

说明：  用弹簧单元模拟钢筋和混凝土的滑移，模拟非线性接触问题。(De veereenheid wordt gebruikt om de slip van staal en beton te simuleren om niet-lineaire contactproblemen te simuleren.)

说明：  基于MATLAB编程实现走向无限、延伸无限的薄板状体磁异常正演(Forward modeling of magnetic anomaly of infinite and extended infinite thin plate)

说明：  本书全面叙述了智能控制的基本理论、方法和应用。主要内容包含专家控制的基本原理和应用；模糊控制的基本原理和应用；神经网络控制的基本原理和应用；遗传算法及其应用和迭代学习控制方法及其应用。书中给出了一些智能算法的Matlab仿真程序，并配有一定数量的习题和上机操作题。(This book comprehensively describes the basic theory, method and application of intelligent control. The main contents include the basic principles and applications of expert control; the basic principles and applications of fuzzy control; the basic principles and applications of neural network control; genetic algorithms and their applications and iterative learning control methods and their applications. The Matlab simulation program of some intelligent algorithms is given in the book, and it is equipped with a certain number of exercises and computer operation problems.)

pfc软件模拟压缩试验程序，土木行业学习应用(PFC compression test procedure)

学习编写EA的基本内容，了解编写EA的基础方法。(Learn to write the basic content of EA and understand the basic method of compiling EA.)