只有建筑物加载版

说明：  diff 2 for stationary data

生成地震动反应谱的matlab函数，输入加速度时程，阻尼比，输出：1列：加速度反应谱，2列：速度反应谱，3列：位移反应谱(Matlab function for generating seismic response spectrum)

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)

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.)

说明：  生成地震动反应谱的matlab函数，输入加速度时程，阻尼比，输出：1列：加速度反应谱，2列：速度反应谱，3列：位移反应谱(Matlab function for generating seismic response spectrum)

说明：  利用ansys建立输电塔模型，并进行模态分析。(The transmission tower model is established by ANSYS, and the modal analysis is carried out.)

abaqus的平板约束数值模拟源文件，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：  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.)

3维米塞斯屈服准则模型，子程序为vumat，用于abaqus(ABAQUS 3-dimensional Mises yield criterion)

说明：  徐世良经典算法集合，包含常用的各种算法，供大家下载参考(index for FEM code)