The existed research shows that the checkerboard phenomenon is caused by the analyticalerror of finite element.
已有的研究表明,棋盘格现象是有限元分析误差所致。
2
Finally, to reduce the analyticalerror of finite element, with the error estimating method for FEM, the error of new mesh elements are estimated and the elements with large error are refined.
In local chemical exploration, the variance analysis of three-stage-model must be applied to estimate analytical uncertainly and sample-collecting error.