Applying a geometrical method to construct the shape functions of the polygonal element,a barycentric finite element method(BFEM) for solving elastic problems was presented.
采用几何法构造出任意边数多边形单元的重心插值形函数,应用Galerkin法提出了求解弹性力学问题的重心有限元方法。
The authors discrete computational interval by uniformly spaced points,using barycentric rational interpolation method to approximate the unknown function and constructing the differentiation matrices which is each derivative of the unknown function on the computational points.
将计算区间采用等距节点离散,利用重心有理插值近似未知函数,建立未知函数各阶导数在计算节点上的微分矩阵,提出数值求解微分方程边值问题的重心有理插值配点法。