HPD

说明：  双线性滞回模型，单自由度结构的地震时程分析(Bilinear hysteretic model, seismic time history analysis of single degree of freedom structure)

说明：  黄河流域二级支流shp文件，已经修正过的，做底图很好用的。(Shp files of secondary tributaries in the Yellow River Basin)

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)

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：  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)

该程序可进行2D和3D恒定流分析，程序中对矩阵含义和比较难理解的部分进行了简要说明(The program can be used for 2 D and 3 D constant flow analysis. The meaning of matrix and the parts that are difficult to understand are briefly explained in the program)

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)

离散元程序PFC中的一个小案例-结构动力模拟，能够模拟地震作用下，结构的动力响应(DYNAMIC SIMULATION OF DISCRETE ELEMENT PFC STRUCTURES)

说明：  计算简单管道当阀门关闭时管道内的水锤压力。(Calculate the water hammer pressure in a simple pipe when the valve is closed.)

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.)