非经典阻尼结构动力分析模态综合法综述

A SUMMARY OF MODAL SUPERPOSITION METHODS OF DYNAMIC ANALYSIS FOR NONCLASSICALLY DAMPED STRUCTURES

摘要: 本文综述了非经典阻尼结构动力分析的模态综合法.将已有的各种模态方法概括并定义为三大类,即实模态近似方法、复模态方法和近似复模态方法.列举了各种方法的主要步骤,分析了各自的优缺点,并强调近似复模态方法的特殊优越性。
- modal superposition method /
- approximate complex-modal method
Abstract: In this paper,the modal superposition methods of dynamic analysis for non-classicallydamped structures are reviewed,and all the modal methods available are summarizedinto three versions defined as the real-modal approximation method, the complex-modalmethod and the approximate complex-modal method. The main procedures of each method are represented and the advantages and weaknesses are pointed out. Finally,the particular superiority of the approximate complex-modal method is emphasized.
- modal superposition method /
- approximate complex-modal method