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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文中还导出单元的一致质量矩阵,可资比较。
For Comparison, the consistent mass matrix of circular-beam is also derived.
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。
Consistent mass matrix and lumped mass matrixes are the common types of mass matrixes in structural dynamic analysis.
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。
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.
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