danjiwuqiongda

说明：  本程序是完成网络的评价路径长度和聚类系数的计算。(This program is to calculate the average path length and clustering coeffient of a network.)

一个用于模拟声波在非线性介质中传播的matlab工具箱，可以用来进行超声相关的实验。(Realization of ultrasonic simulation)

已知动力系统方程，利用质量、刚度和力向量，求解响应程序(According dynamic system equation, including mass, stiffness and force vector, it is the program to be used to solve response)

说明：  直流配网模型，非常基础的直流配网模型，便于对直流配网的基本掌握和学习(DC distribution network model, very basic DC distribution network model, easy to grasp and learn the basic DC distribution network)

说明：  在 Carsim 中分别搭建好前车与后车的车辆纵向动力学 模型。雷达系统将探测到的后车信息和前车信息传递给行车 间距控制系统，此控制系统根据安全距离模型计算出后车车 辆期望加速度，此期望加速度经过 PID 控制器调节后，输入 给车辆动力学系统，车辆动力学系统基于此加速度输出期望 的制动压力和节气门开度，并将此值传给制动及节气门控制 系统，此系统输出相应的制动力及节气门开度给后车动力学 系统，进行制动及加速控制。(The vehicle longitudinal dynamics of the front car and the rear car were built respectively in Carsim Model.The radar system transmits the information of the vehicle behind and the vehicle in front to the vehicle Spacing control system, this control system according to the safe distance model to calculate the rear car Vehicle expected acceleration, the expected acceleration after PID controller adjustment, input Given to the vehicle dynamics system, the vehicle dynamics system is based on this acceleration output expectation Brake pressure and throttle opening, and pass this value to brake and throttle control System, which outputs the corresponding braking force and throttle opening to the rear car dynamics System for braking and acceleration control.)

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.)

说明：  根据一设定运动轨迹进行模糊pid观测器设定，让后进行跟踪，实现有效跟踪。(According to a set motion trajectory, the fuzzy PID observer is set, and then the tracking is carried out to achieve effective tracking.)

说明：  MATLAB实现二级倒立摆稳摆过程，用MATLAB进行仿真建模，并做角度位置分析(MATLAB realizes the stabilization process of double inverted pendulum)

说明：  自组织映射神经网络，直接就可以流畅的运行出仿真效果图处理。(The self-organizing mapping neural network can directly run smoothly to process the simulation renderings.)

说明：  fluent，使用UDF定义凝固模型中的源项，实现自热发热源(Fluent, using UDF to define the source term in solidification model, to realize self heating heat source)