...微分矩阵；重心插值配点法；无网格方法[gap=1516]s: elastic problem; polar coordinate system; barycentric Lagrange interpolation; differential matrix; barycentric interpolation collocation method; meshless method...
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提出了新的对偶向量形式和新的对偶微分矩阵。
A new form of dual vectors and a new dual differential matrix is presented.
采用重心有理插值近似未知函数，得到未知函数的各阶微分矩阵。
The differentiation matrices of unknown function are constructed by using barycentric rational interpolation.
在弹性力学求解新体系中，将对偶向量进行重新排序后，提出了一种新的对偶微分矩阵，对于有一个方向正交的各向异性材料的三维弹性力学问题发现了一种新的正交关系。
In a new systematic methodology for theory of elasticity a new dual differential matrix is presented by the dual vectors over again sorted and a new orthogonality relationship is discover.
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