Second,the domain is divided into various subdomain which local nodal patterns are determined a priori based on theories and past experience of experts on FEM and stored in the database.

• 然后将离散区域划分为不同子区域，利用现有的知识和专家经验建立不同子区域的剖分密度方式，根据模糊数学中隶属函数对子域密度方式进行叠加，生成总体区域密度方式，从而在基平面形成疏密合理的二维网格。