在动态分析中,单元的质量矩阵有两种形式: a)一致质量矩阵(Consistent Mass Matrix):因为它采用了和刚度矩阵一致 的形函数,故称为一致质量矩阵。这种质量矩阵取决于单元的类型和形函数的 形式。
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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。
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。
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。
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