说明：  有限元的空间离散化，有限元的编程实现，静态结构的有限元分析，线弹性实体的静力平衡，材料非线性，恒定流，一阶瞬态问题，耦合问题，特征值问题，受迫震动。
(Finite element space discretization, finite element programming realize, static structural finite element analysis, linear elastic entities static equilibrium, material non-linear, unsteady flow, the first-order transient problems, coupled problems, eigenvalue problems, forced vibration.)