24-转子-轴承系统的临界转速

MATLAB编写的一段有限元方法计算梁的应力分析程序(A finite element method program written by matlab for stress analysis of beams)

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.)

matlab生成一个随机相位屏，可以模拟大气和电离层，结果为彩色图。(Matlab generates a random phase screen, which can simulate the atmosphere and the ionosphere. The result is a color map.)

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：  线性阵列方向图生成程序，matlab代码 。包括和波束方向图生成、差波束方向图生成，具有自主知识产权。(linear_array_pattern)

噪声调幅干扰和噪声调频干扰的matlab仿真(AM noise jamming, FM noise jamming)

说明：  利用python编程的WOFOST作物模型，进行作物产量等模拟，实现wofost模型。(The WOFOST crop model programmed by Python was used to simulate crop yield and realize WOFOST model.)

说明：  很强大的数据拟合软件，能做各种方程拟合，精度很高(Data Fitting software)

说明：  这是MATLAB和CST联合仿真工具包，个人进行了一些完善和修改。(This is a joint simulation toolkit of MATLAB and CST. I have made some improvements and modifications.)

说明：  对网上现有的产生m序列的线性反馈移位寄存器代码进行了修改，可以通过输入本原多项式向量，生成相应m序列(The existing linear feedback shift register code for m-sequence generation on the Internet is modified. The corresponding m-sequence can be generated by inputting the primitive polynomial vector)