matlab有限元结构动力学分析实例，对结构动力学分析过程中的频率，特征值，模态的求解都有详细实例(Examples of finite element dynamics analysis of matlab, there are detailed examples for the frequency, eigenvalues, modal solutions in the process of structural dynamic analysis.)

自适应（ self-adaptive）是指处理和分析过程中,根据处理数据的数据特征自动调整处理方法、处理顺序、处理参数、边界条件或约束条件,使其与所处理数据的统计分布特征、结构特征相适应,以取得最佳的处理效果(Self-adaptive refers to the automatic adjustment of processing methods, processing sequence, processing parameters, boundary conditions or constr