A new local optimization method of finite-element mesh

Abstract

In the finite element mesh analysis, researches are always done on displacement and stress in a certain area and higher accuracy is expected to be obtained in that area. If the accuracy of mesh grid is higher or the number of units is increased, the storage space of the computer relatively needs to be larger, the computing time becomes longer and some problems may not be solved by computer. In the local mesh encryption method, only the initial mesh parts of the model are encrypted. Under the condition of accuracy ensured, only the calculating number of nodes of local model needs to be increased in this method without unit dividing for the entire model. In this method, model unit density is increased, storage space and computing time is greatly reduced and the accuracy of calculating is improved.