Abstract
We developed an appropriate mesh size automatic decision technique that can be detecting the mesh size with sufficient analytical accuracy and short analytical computation time as possible. The mesh size is one of the most important factors affecting the analytical accuracy. However, the appropriate mesh size is not unique depending on a shape of analysis model and/or physical phenomena. In particular, beginners of analysis work take a lot of trial and error to evaluate the appropriate mesh size. So, we developed a mesh size detection tool that can be guaranteed reliability of analytical results. More specifically, relations between the mesh sizes and the analysis results is gathered by executing FEM analysis while decreasing mesh size, and appropriate mesh size is set at the time when the difference of analysis results approach asymptotically to 0%. This technique can be eliminated trial-and-error adjustment of the mesh size. We demonstrated to be reduced analysis work time to 1/50 or less by application to electromagnetic field analysis tool developed in-house.
