ABAQUS_VUMAT初学者用户子程序小例子

abaqus的动态力学数值模拟源文件，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：  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：  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))

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)

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)

说明：  格子玻尔兹曼仿真多孔介质，适合煤炭，石油，岩土等行业(Lattice Boltzmann simulation of porous media, suitable for coal, petroleum, geotechnical and other industries)

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：  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：  三层框架，瑞雷阻尼。 激励是白噪声。 先计算得到理论的响应时程，理论频率，再利用响应做峰值法识别频率模态，与理论频率对比。 程序只写到了画ANPSD曲线，还需要自己写一个拾取峰值的代码。(Three story frame, Rayleigh damping. The excitation is white noise. First, the theoretical response time history and frequency are calculated, and then the peak response method is used to identify the frequency mode, which is compared with the theoretical frequency. Later, you need to write a code to pick up the frequency corresponding to the peak value.)

可以用该程序进行多自由度结构的地震控制计算(Earthquake control calculation of structures)