broadsig_gen

说明：  利用有限差分法求解雷诺方程，效果非常好，需要的同学可以自己下载！(Using the finite difference method to solve the Reynolds equation, the effect is very good. Students who need it can download it by themselves!)

C#实现截屏 可区域截屏，或可全屏点ESC退出(C # Realize Screen Capture Area Screen Capture or Full Screen Point ESC Exit)

大型旋转机械的状态检测与故障诊断 介绍了旋转机械的故障诊断方法(State detection and fault diagnosis of large rotating machinery Introduce the fault diagnosis method of rotating machinery)

说明：  三种训练集和测试集采样方法 分别为 ks spxy 和按照y大小均匀采样(Three sampling methods of training set and test set Ks spxy and uniform sampling according to y size)

又一个AT89c51等单片机可以使用的4*4 键盘程序-Another AT89C51 single-chip microcomputer can be used, such as 4* 4 keyboard procedures

Reynolds boids flocking in ThreeJS

说明：  arduino test sketch for DDS-60 kit

通过坐标转换的方法估算月球在某一时刻在J2000坐标系下的位置和速度。（理解航天中坐标转化、时间系统的学习案例）(Through the coordinates of the conversion method to estimate the moon at a time in the J2000 coordinate system under the location and speed. (Understanding of aerospace coordinate transformation, time system learning case))

分析了永磁同步电机矢量控制的发展概况，然后从机电能量转换的角度出发，解释三相永磁同步电机的机电能量转换原理，推导拉格朗日运动方程。此外，列写出永磁同步电机在三相静止坐标系和dq坐标系下的数学模型。基于Simulink建立了转速电流双闭环矢量控制系统的仿真模型，通过对仿真结果分析，验证了永磁同步电机矢量控制系统性能的优越性(The development of vector control of permanent magnet synchronous motor is analyzed. Then, from the perspective of electromechanical energy conversion, the principle of electromechanical energy conversion of three-phase permanent magnet synchronous motor is explained, and the Lagrangian motion equation is derived. In addition, the mathematical model of the permanent magnet synchronous motor in the three-phase stationary coordinate system and the dq coordinate system is written. Based on Simulink, the simulation model of the speed and current double closed-loop vector control system is established. The simulation results are analyzed to verify the superiority of the performance of the permanent magnet synchronous motor vector control system.)

说明：  基于简单萤火虫算法设计的例程，选择了几个测试函数进行算法搜索结果的检验(Routine design based on simple firefly algorithm. The contents, mathematical model and algorithm design of simple firefly algorithm.)