chap4_1

通过设置不同的参数，创建小世界网络，用于仿真建模。(This program is to create a small world network for simulation.)

蠕滑力计算,滚珠轴承中蠕滑力计算时用到，修改后也可以用到滚珠丝杠中(fastsim function F=Get_Fastsim(C,Cp,ab,N))

说明：  混响器的MATLAB实现：利用MATLAB/SIMULINK软件实现混响器(Realization of reverberator with MATLAB)

用牛顿-拉夫逊法进行电力系统潮流分布计算(Calculation of Power Flow Distribution in Power System by Newton-Raphson Method)

说明：  利用BP神经网络实现对民族，古筝，摇滚，流行四类音乐的有效分类。matlab实现，提供数据和详细代码，有解释！(The BP neural network is used to realize the effective classification of four kinds of music: nationality, zither, rock and roll, and popular music. Matlab implementation, provide data and detailed code, there are explanations!)

利用k-means算法实现二维平面点的聚类，包括了运行源代码和结果图(The k-means algorithm is used to realize the clustering of two-dimensional plane points, including the running source code and the result graph)

说明：  魔术轮胎公式，车辆动力学中常用的关于轮胎的建模(magic tire,used in vehicle model.)

用abaqus做的金属切削仿真，希望可以帮助大家(A metal cutting simulation, i hope it will be helpful)

abaqus 帮助文档中的蠕变本构模型，包括时效强化模型和应变强化模型，以及一个模型的inp文件(Creep constitutive model in abaqus help document, including time-based reinforcement model and strain reinforcement model, and inp file of a model)

对于非线性模型的跟踪预估问题，摒弃额对非线性函数进行线性化的做法，采用无迹变换处理均值和方差的非线性传递问题。(For the tracking and prediction problem of the nonlinear model, the linearization of the non-linear function is abandoned, and the traceless transformation is used to deal with the non-linear transfer of mean and variance.)