get_principal_stress

计算相图学，材料学开源软件，Fortran(Calculation of phase diagram, materials science open source software, Fortran)

说明：  关于海杂波的仿真源程序，包括原理和编程中的注意事项(Simulation of sea clutter on the source, including the principles and programming note)

这是在MATLAB环境下进行电力系统暂态稳定分析的pst源程序，该文件定义了一个4机8节点的系统模型。(This is the MATLAB environment in power system transient stability analysis of the pst source, the document defines a 4-machine system model 8 nodes.)

说明：  用VC++开发了一个数控加工的三维仿真程序，能有效仿真加工过程。(With VC++ Developed a three-dimensional simulation of NC machining process simulation can effectively process.)

本程序基于matlab，采用牛顿拉夫逊法，对33节点潮流进行计算。(Calculating Power Flow of 33-Node Power Grid by Newton-Raphson Method)

土地折算：在vb环境下基于mo的不同等级土地折算系统的开发，(Land conversion: vb environment in different grades of land-based mo conversion system development,)

此文件为凯威特网壳结构ANSYS建模的APDL语言，可以完成各类凯威特网壳结构的参数化建模(This document is APDL language of modeling ANSYS of kaiweite shell structure, which can complete the parametric modeling of various kinds of kaiweite shell structure)

本程序为电力系统潮流计算PQ法，计算结果正确，画出图形不正确。需自行改正(This procedure for the PQ power system power flow calculation method, calculation is correct, draw graphics incorrect. To be self-corrected)

说明：  计算散度涡度等气象要素，还有计算很多诊断量的程序(canculate divergence and vorticity)

ansys在土木相关的基本资料学习，可供相关人员参考学习(ANSYS basic information)