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1·For Comparison, the consistent mass matrix of circular-beam is also derived.

文中还导出单元的一致质量矩阵，可资比较。

2·Consistent mass matrix and lumped mass matrixes are the common types of mass matrixes in structural dynamic analysis.

一致质量矩阵与集中质量矩阵是结构动力分析中常用的质量矩阵形式。

3·The stiffness matrix, equivalent nodal load and consistent mass matrix are derived for the beam element with variable cross-section.

导出了变截面梁单元的单元刚度矩阵、单元等效节点荷载和单元一致质量矩阵。

4·Through the analysis and comparison of the results, it is found that the dynamic analysis on large and complicated Bridges can be carried out by using consistent mass matrix.

结果表明，对于大型复杂桥跨结构的动力分析宜采用一致质量矩阵模型。