The Software System Of The Two Dimensional Finite Element Mesh Automatic Generation

The automatic mesh generation is the important precondition of finite element analysis and calculation. In the recent methods of two-dimensional quadrilateral mesh generation, the paving method is worthy of studying, which possesses properties of high automatization degree and generating excellent element. But the deficiency of this method still exists. For enhancing the reliability and applicability of the method, this paper makes some beneficial improvement. The quality of the mesh has been improved and the half-bandwidth of the global stiffness matrix has been decreased by adding the algorithm for mesh quality optimization and the algorithm for the optimizing of node number. The accuracy has been improved by introducing the algorithm for mesh encryption. According to the improved algorithm method, the automatic mesh generator has been developed , many examples that have been created by using this generator is proved to the efficiency of the improved algorithm.