The Study Of Changing The Mesh For Diversity Of Analysis

Meshing is the most tedious and time-consuming work in Finite element analysis and key steps for keeping analysis accuracy.A research direction is that how to get automatic meshing . Traditional research is limit on the method that people try to generate Maximum geometric model and grid approximation, but ignore the effects of meshing from different analysis. For example, static analysis and modal analysis have different requirements for mesh. In order to get the best automatic meshing for every analysis, this paper Proposed a new method that transformation of the grid would be finished before calculating analysis. This transformation based on different analysis that for the Grid Similarities and differences between the requirements. Finally got optimal mesh analysis and discussed with the key technology ,The main study contents in this paper is illustrated in following parts :Firstly, for static analysis and modal analysis, the paper researched deeply two different analysis on the grid 's requirement. Finding out the differences between two analysis to get optimal meshSecondly, paper introduced the characters of the Triangular mesh model ,and use Container in STL to achieve reconstruction of half of the grid data structure. The paper Described the transformation of static analysis of optimal modal analysis algorithm for grid . Algorithm consists three parts: 1.The treatment of small size pores; 2.The treatment of small radius fillet; 3.The treatment of Narrow incision. It described the Concrete steps of three transformation methods, and verified Effectiveness of algorithm by experiments.Finally, finite modal analysis was made for washing machine modal, Natural frequency and mode shape were compared to verified Effectiveness of Transformation Thought.