NNMs by SAIS.rar

The file includes: - The original .fig figures generated in MATLAB - The results of SAIS vs. Pseudo Arc-Length corresponding with NNMs - Datasets of NNMs corresponding with a 2DOF with more substantial nonlinearities - Datasets of NNMs corresponding with a 5DOF - Datasets of FEPs during Hardening to Softening behavior <br> ** Considering "N" as number of DOFs, the first to (N)th columns of datasets are the initial displacements that stimulate the structure during a free vibration periodic motion, the (N+1)th to (2N)th columns are the initial velocities, the (2N+1)th column is corresponded with the period of the periodic oscilliation, the (2N+2)th column is corresponded with the total energy of the whole system, the (2N+3)th to (3N+2)th columns shows the maximum domain of each DOF, and the final column shows the total residuals of all DOFs. <br> <br> <br> <br>本数据集包含以下内容： - MATLAB 生成的原始 .fig 格式图形文件 - 与非线性正常模态（Nonlinear Normal Modes，NNMs）对应的 SAIS 与伪弧长法对比结果 - 针对具有较强非线性的二自由度（2DOF）系统的非线性正常模态数据集 - 针对五自由度（5DOF）系统的非线性正常模态数据集 - 硬化特性向软化特性转变过程中的 FEPs 数据集 **若以N表示自由度总数，则数据集的第1至第N列对应自由周期振动过程中激励结构的初始位移；第N+1至第2N列为初始速度；第2N+1列为周期振荡的周期值；第2N+2列为整个系统的总能量；第2N+3至第3N+2列为各自由度的最大幅值域；最后一列为所有自由度的总残差。**