Surface element layer formation method for improving hexahedral mesh shape in finite element method

摘要

The invention is used for to improve the prediction accuracy of the time of analysis by improving the quality of grid finite element analysis over a position fix of the configuration and the joints of the surface element layer to improve the image quality of the twisted surfaces element badly to provide a surface element layer construction method for improving the shape of the cube element grid it is an object.; The present invention, in the surface element layer structure of the grid method for improving the shape of a lattice grid or has already been configured in the cube element (hexahedral element) for a finite element analysis, of the grid by using the information of the surface adjacent each of the offset vector (offset vector) to obtain, after configuring the new node to a predetermined size offset in the determined positions, respectively, to new nodes interconnected virtual thin film on the flat joints (nodal point), the edge node, and the vertex node phase constituting the surface layer and the element; Each of the nodes are positioned in the appropriate coordinates suitable for the finite element analysis includes the step of repeatedly performing the position fix to the process of the joint corner joints, flat joints, and internal node in order to be fixed in a position of the vertex node.