Lyapunov exponent (2)

说明：  pmsm转矩预测控制（还有瑕疵，请指正）(Pmsm Torque Predictive Control (with flaws, please correct))

异步电机的VVVF的变频启动，含matlab仿真模型和编程M文件(AsynchronousMotor ,VVVF,including M file and SIMULINK model)

煤矿通风系统模拟仿真软件，可以模拟矿井通风系统的运行，优化通风系统的功能。(The simulation software of mine ventilation system can simulate the operation of mine ventilation system and optimize the function of ventilation system.)

在文件qiexian.m中输入两个摩尔圆的坐标即可画出莫尔圆，并求出两圆的切线(In the file qiexian.m, enter the moire circle with the coordinates of two Moore circles, you can find the tangent of the two circle.)

实现弧度向角度的转换，判断在第几象限。。。。。。(Realize the conversion of radian to angle and judge the quadrant)

说明：  abaqus中vumat下铝的fortran本构，二次开发，只适用于初学者，非常简单的那种(FORTRAN constitutive model, secondary development, elementary study)

这是基于MFC的北京（部分）地铁售票系统，采用ODBC连接数据库，界面美观。PS:要将res文件中的SUBWAY.MDB从ODBC导入才能正常运行。(This is based on the MFC (part) Metro ticketing system using ODBC connected database, beautiful interface. PS: in SUBWAY.MDB To res file to import from ODBC to run properly.)

说明：  为了感谢惠俊英老师的谆谆教诲，再为好奇诸君奉上水声物理--海洋传播声场模拟的一份武林秘籍--海洋传播声场抛物方程解算方法--RAM！ 当好奇诸君阅毕此卷，再对照轻松跑完作业，即入门 RAM！ RAM 与 AcousticsToolbox 遵照 GNU 公共许可证进行分发。感谢Michael D. Collins 对 RAM 的原创，也感谢由 Free Software 凝聚起来的自由科学家社区(In order to thank Professor Hui Junying for his teachings, and then offer you a secret book of underwater acoustic physics, ocean propagation sound field simulation, the parabolic equation solution method of ocean propagation sound field, RAM! When curious gentlemen read this volume, and then compared with easy running homework, that is, access to RAM! RAM and Acoustics Toolbox are distributed under the GNU Public License. Thanks to Michael D. Collins for his original RAM and to the Free Software community of free scientists.)

说明：  ANSYS180有限元分析学习宝典配套的实例命令流(Example command flow of ansys18.0 finite element analysis learning dictionary)

说明：  该文档为ANSYS仿真开发实例，为某扁挤压筒的热结构耦合分析，格式为txt，请自行如有需要请自行修改并复制到ANSYS开发界面运行。(This document is an example of ANSYS simulation development. It is a thermal structure coupling analysis of a flat extrusion tube. The format is TXT. Please modify and copy it to the ANSYS development interface if necessary.)