The stiffness matrix of polyhedron of the flexible joint is formulated based on the local flexibility factormatrix and coordinate transformation.
结果表明，对空间管状结构总体分析，考虑接头的局部柔性是很有必要的。
2
It has been shown in this paper, that in solving radiation heat transfer problems for finite element model of mechanical construction it is necessary to compute the shape factormatrix.
本文说明了在用有限元模式对机械结构的幅射换热问题进行求解时，必须计算形状因子矩阵。
3
Method for computing the element restoring force, rather than the stiffness matrix, is the most important factor that determines the accuracy of a geometric nonlinear finite element problem.