LoopArea2019_byCJD

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...)

说明：  针对轨道动力学，模拟轨道不平顺的matlab编程，对轨道增加不平顺性，美国六级谱(Addition of track irregularity)

说明：  Abaqus中用于用户自定材料属性的子程序编程实例，适用于初学者。(ABAQUS subroutine programming example for user defined material properties, suitable for beginners.)

abaqus的残余应力数值模拟源文件，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：  用于求解悬臂梁前3阶固有频率和振型（假设模态法，解析法，瑞利里兹法）(It is used to solve the first three natural frequencies and modes of cantilever beam (assumed mode method, analytical method, Rayleigh Ritz method))

说明：  程序考虑了悬臂梁的几个大变形，并给出了变形过程图，很适合非线性学习的初学者。(The program considers several large deformations of the cantilever beam, and gives the deformation process chart, which is very suitable for beginners of nonlinear learning.)

说明：  滞回环面积求解，实验数据中滞回曲线的面积计算，采用MATLAB编写。(Solving the area of hysteresis loop)

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：  适合各种桥梁杆系单元计算的有限元计算软件，自带许多算例(Finite element calculation software suitable for the calculation of all kinds of bridge bar system elements, with many examples of its own)

用于房屋、大坝、桥梁、水电站等大型结构的时程分析，根据桥梁抗震细则规范标准谱得到的25条地震波(For time history analysis of large structures such as buildings, dams, bridges and Hydropower stations, 25 seismic waves are obtained according to the standard spectrum of seismic rules for bridges.)