灰色算法

说明：  计算可见光通信中最大化最小速率的优化问题，还有稳健波束成形(The optimization problem of maximizing the minimum rate and robust beamforming are also discussed)

说明：  abaqus中用fortran编写的热源子程序（双椭球）(Subroutine of heat source (double ellipsoid) written by Fortran in ABAQUS)

说明：  高压共轨系统模型，包括喷油器，油泵，共轨(High pressure common rail system model, including injector, oil pump, common rail)

说明：  三个ANSYS瞬态分析的命令流：冲击载荷作用悬臂梁的阻尼振动分析；破碎锤的瞬态动力学分析；滑动摩擦接触分析(Three command streams of ANSYS transient analysis: damped vibration analysis of cantilever beam under impact load; transient dynamic analysis of crushing hammer; sliding friction contact analysis)

实现调频仿真，用于系统组合使用，检测；可进一步用于各种调频的使用。(Realization of FM simulation)

说明：  利用遗传算法求解TSP问题，具有比较实际的应用价值(It has practical application value to solve TSP problem by genetic algorithm)

无刷直流电机调速仿真。PI转速和电流双闭环(Speed control simulation of Brushless DC motor)

说明：  混凝土的弹塑性损伤问题，可以很好解决弹塑性损伤问题(The elastoplastic damage of concrete can be solved well)

说明：  abaqus纯镁切削算例文件，可直接计算(ABAQUS pure magnesium cutting example file can be directly calculated)

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.)