By comparing the results with those obtained by the complex modal analysis, it is shown that the present method is efficient.
通过计算实例，并同复模态分析方法比较，说明了该方法的有效性。
By comparing the obtained results with the results of complex modal analysis, it is shown that the present method is accurate enough and efficient.
通过计算实例，并同复模态分析方法比较，说明了该方法的有效性和精确性。
The real modal analysis and complex modal analysis are respectively applied to the multi-degree-of -freedom system according to the different damp.
对粘性比例阻尼与一般粘性阻尼两种情况分别进行了多自由度系统的实模态与复模态分析。
The complex modal analysis method is generalized to the cases in which stiffness matrix may be singular and mass matrix, damping matrix and stiffness may be nonsymmetric.
把复模态分析法推广到刚度矩阵可以奇导且质量矩阵、阻尼矩阵和刚度矩阵均不必为对称的情形。
A complete set of calculating methods for complex modal analysis of nonlinear random response of structures with multi-degrees of freedom and base isolation are proposed.
从而建立了多自由度隔震结构非线性随机响应复模态分析的一整套计算方法。
In this paper, complex modal analysis for dam-foundation interaction problem in time domain is presented, and effects of dam-foundation interaction on modal characteristics of the dam are discussed.
本文提出在时域内分析水坝与地基动力相互作用问题的复模态分析方法，讨论了水坝与地基动力相互作用对水坝模态特性的影响。
Complex modal analysis is then performed to calculate the eigenvalues and eigenvectors, and then modal parameters are obtained.
采用复模态分析求取特征值和特征向量，进而得到系统的模态参数。
Complex modal analysis is then performed to calculate the eigenvalues and eigenvectors, and then modal parameters are obtained.
采用复模态分析求取特征值和特征向量，进而得到系统的模态参数。
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