样条矩阵法

Spline Matrix Method

建立了新的样条坐标矩阵，据此重新定义了一组结点广义位移参数，提出了样条矩阵法。本方法直接采用Ｂ样条函数构造形函数，从而避免了由于Ｂ样条函数的重新组合而造成的种种不便。同时，又能方便地引入边界条件，且易于进行子域间的搭接。样条矩阵法与以往样条函数方法相比，具有格式简单，编程方便，计算简捷等优点。

This paper introduced a new spline coordinate matrix which restrains anodal parameter vector. By this way, the Spline Matrix Method (SMM) was established.This method makes use of B-spline function directly, and so reduces the obstacles which iscaused by the reuniting of B-spline function. This method makes not only the stiffness matrix have a band of equal width, but also the neighboring subdormain be connected easily.Comparing with the former spline function method, the SMM have a simple style of com puting, and is much convenient to program, easy and quick to calculate.