The joint element matrix equations were developed for various structural configurations and wave types.

针对各种不同的结构连接形式和振动波形，分别推导了各种节点单元矩阵的表达式。

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Reference to the derivation of the general beam element matrix, taking into account the shear deformation of the beam element, it is derived spatial beam element stiffness matrix.

参考一般梁单元矩阵推导过程，考虑了梁单元的剪切变形，推导出空间梁单元刚度矩阵。

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Every storey with a same section is taken as a calculation element. The element matrix, section matrix and transfer matrix of every element are derived by the differential equations.

根据变截面框筒结构的截面沿高度为阶形变化的特点，以每个相同截面的层作为一个计算单元，每个单元由微分方程组导出其单元矩阵、截面矩阵和传递矩阵。

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In brief, the formation element offers different notions in the form of social networks, workgroups or matrix teams, communities, and swarms, based on how these groups are created, and how members join in.

FORBES: A Road Trip Through Different Views On Collaborative Work