Cal_fric

说明：  这是典型双连杆机械臂的PD控制的matlab仿真，非常适合初始学机械臂控制折者(This is the MATLAB simulation of PD control of a typical double link manipulator, which is very suitable for the original manipulator to learn how to control the folding)

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)

说明：  非线性调频信号的产生函数，以及绘制时域频域图像(Proudce a NLFM signal,use for radar test)

用于绘制电机效率等高线图的程序，横坐标的转速，纵坐标转矩(A program for drawing contour diagrams of motor efficiency,the speed of the abscissa and the torque of the ordinate.)

一种虚拟同步发电机仿真模型，通过投切负荷达到频率波动的效果，然后VSG根据控制策略改变输出。(A virtual synchronous generator simulation model achieves the effect of frequency fluctuation by switching loads, and then VSG changes the output according to the control strategy.)

说明：  关于J2塑性流动理论的金属3的材料本构隐式子程序umat(Implicit Subprogram UMAT for Material Constitutive of Metal 3 in J2 Plastic Flow Theory)

说明：  龙门吊反演滑膜变结构控制，simlink程序+s函数程序，亲测有效(Sliding membrane control of gantry crane inversion)

说明：  使用python语言实现复杂网络SIR和SIS模型编程(SIR AND SIS model with python language)

说明：  并网逆变器通常采用L滤波器，虽然结构和控制简单，但是随着功率级别的增加会地带来体积重量增大等问题。LCL滤波器适用于功率较大的场合。(Grid-connected inverters usually use L filters. Although the structure and control are simple, problems such as volume and weight increase with the increase of power level. The LCL filter is suitable for occasions with large power.)

对等边直角三角形阵和立体三棱锥阵进行仿真建模，并进行了定向定位的误差分析，得到了相应的波形。(The simulation modeling of the equilateral triangle array and the stereoscopic three pyramid array is carried out, and the error analysis of directional positioning is carried out, and the corresponding waveforms are obtained.)