▍1. Cal_fric
计算井筒注入或者生产过程中的摩阻系数,可用于井筒压力分布预测(Wellbore fraction coefficient calcuation method)
计算井筒注入或者生产过程中的摩阻系数,可用于井筒压力分布预测(Wellbore fraction coefficient calcuation method)
基于空间矢量的电流型整流器,双闭环,可运行,实现了电压电流同相位功能(The current mode rectifier based on space vector can operate with double closed loops, and achieve the function of voltage current and phase.)
实现线性调频信号,实现对线性调频信号的建模(linear frequency modulation)
单相半桥式跟踪PWM逆变器仿真,电流滞环跟踪控制(Single phase half bridge tracking PWM inverter simulation, current hysteresis tracking control.)
本文首先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。(This paper first analyzes the development of permanent magnet synchronous motor vector control, and then explains the electromechanical energy conversion principle of three-phase permanent magnet synchronous motor from the perspective of electromechanical energy conversion, and deduce the Lagrange motion equation. In addition, the mathematical model of permanent magnet synchronous motor (PMSM) in three phase stationary coordinate system and dq coordinate system is listed. Based on Simulink, a simulation model of speed and current double closed loop vector control system is established. By analyzing the simulation results, the performance of PMSM vector control system is verified.)
滑模变结构 刘金坤 ,很好用,很实用,特别是机器人控制方向。(sliding mode control liujinkun)
用于铣削动力学建模的稳定性叶瓣图分析(全离散法)(The full discrete method is used to map the stability lobe)
获得针对于双馈风力发电机组的风力发电特性曲线,用于研究风力发电原理。(Obtain the wind generation curve for doubly-fed wind turbines to study the principle of wind power generation.)
单相z源逆变器matlab仿真模型。(Matlab simulation model of single-phase Z source inverter)
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))
对地面固定目标设计了一种仅依赖测距传感器的制导律,不再需要传统的视线角信号以及目标和无人机自身的定位信息,再将该制导律推广到对地面匀速和变速移动目标的跟踪制导。相比于现有制导律,本课题提出的制导律结构更为简洁,仅有一个设计参数,并且制导策略更为合理。仿真结果表明所提出的制导律能够实现无人机对地面固定目标的稳定跟踪。(A guidance law that only depends on the ranging sensor is designed for the ground fixed target. The traditional line-of-sight signal and the target and the positioning information of the UAV are no longer needed. The guidance law is extended to the uniform and variable speed moving target Tracking guidance. Compared with the existing guidance law, the guidance law structure proposed by this subject is more concise, with only one design parameter, and the guidance strategy is more reasonable. The simulation results show that the proposed guidance law can achieve stable tracking of UAV fixed targets on the ground.)
机器人MATLAB m语言,实现关节机器人的运动学正解运算。算(Robot MATLAB M language, realize kinematic joint robot forward kinematics, inverse operation.)
分别对matlab和ansys两种平台的拓扑优化结果分析比较,为学习者提供了两种不同优化设计思路,过程详细清晰,易于学习理解(The analysis and comparison of topology optimization results between MATLAB and ANSYS two platforms provide two different optimization design ideas for learners. The process is clear and clear, and easy to learn and understand.)
one bubble free field 单气泡自由场计算(one bubble free field)
matlab 小程序实现晶粒形核加圆形长大(CA grain nucleation and growth)
说明: 卫星姿态是指卫星星体在轨道上运行所处的空间指向状态。将直角坐标系的原点置于星体上,指向地面的Z轴反映偏航方向,Y轴反映俯仰方向,X轴反映滚动方向。星体在高空中沿局部地球铅垂方向和轨道矢量方向运行,不时地产生对三轴的偏移。姿态控制是通过姿态控制分系统(ACS)来实现,使用地平扫描仪可感应俯仰和滚动轴的姿态误差,使用速度陀螺仪和罗盘可感应偏航轴的姿态误差。(Satellite attitude refers to the spatial orientation of a satellite in orbit. The origin of the Cartesian coordinate system is placed on the star, the Z axis pointing to the ground reflects the yaw direction, the Y axis reflects the pitching direction, and the X axis reflects the rolling direction. The stars move along the direction of the earth's vertical direction and the orbit vector in the high altitude, resulting in the deviation of the three axis from time to time. Attitude control is realized by attitude control subsystem (ACS). The attitude error of pitch and rolling axis can be induced by using horizon scanner, and the attitude error of yaw axis can be induced by using speed gyroscope and compass.)
用matlab动态无功补偿器statcom的仿真模型(Dynamic reactive power compensator statcom simulation mode)