subroutine fric

说明：  MATLAB 脚本的振型叠加计算内容， 属于结构动力学的内容，为英国大学教授的教学脚本(SDOFof superposition worked exampleSDOF)

说明：  简易的配筋软件，适用CAD2014及以下版本。(Simple reinforcement software, applicable to CAD2014 and below version.)

说明：  梯形断面明槽水面曲线计算源程序,输入数据即可自动计算结果(Calculation of Water Surface Curve of Trapezoidal Section Open Channel)

说明：  采用初始应力法进行被动土压力分析，程序中对相关矩阵及每一步的意义进行了简要说明(The code uses the initial stress method to analyze the passive earth pressure. The relevant matrix and the significance of each step are briefly explained in the program.)

说明：  此程序为本人自行编制的矩形移动荷载作用下饱和土地基的动应力响应问题的MATLAB程序，适合相关研究方向的初学者。(This program is a matlab program for the dynamic stress response of saturated soil foundation under the action of rectangular moving load, which is suitable for beginners in related research fields.)

abaqus的平板塑性圆孔数值模拟源文件，适合abaqus新手操作练习使用(ABAQUS source files for numerical simulation of plate constraints, suitable for ABAQUS novice operation exercises)

说明：  此为ASCE的第三代基准模型代码，可供土木工程领域学者使用。(This is the third generation benchmark model code of ASCE, which can be used by scholars in the field of civil engineering)

说明：  铝合金门窗辅助设计营销。输入门窗洞口尺寸，系统自动打印下料单、玻璃单、示意图、收银……(Aluminum alloy doors and windows aided design marketing. Input the size of the door and window opening, the system automatically prints the blanking list, glass sheet, schematic diagram, cash register...)

39节点系统稳态和暂态运算的bpa源代码(BPA power flow calculation code for 39-node system)

可利用八节点有限单元进行力学分析，荷载形式可以为点荷载或均布荷载等形式(This code can be used for mechanical analysis of eight-node quadrilateral element, and it is suitable for various load forms such as concentrated load, uniform load and so on.)