THE MODAL FEATURES OF THE VIBRATION SYSTEMS OF THE WEAKLY- VISCOELASTIC MATERIAL STRUCTURES  

作　　者：Chen Guo-ping and Zhu De-maoNanjing Aeronautical Institute 

出　　处：《Chinese Journal of Aeronautics》1991年第4期347-353,共7页中国航空学报（英文版）

摘　　要：This paper discusses the modal features of weakly-viscoelastic material structures both for single-modulus and multi-modulus materials. It is the eigenvalues of these structures that are the roots of a series of rational fraction polynomial equations. A theorem about the roots of these equations is proved in the paper. Based on it, some important conclusions about the modal features of the weakly viscoelastic material structures are given according to their dynamic behaviors.This paper discusses the modal features of weakly-viscoelastic material structures both for single-modulus and multi-modulus materials. It is the eigenvalues of these structures that are the roots of a series of rational fraction polynomial equations. A theorem about the roots of these equations is proved in the paper. Based on it, some important conclusions about the modal features of the weakly viscoelastic material structures are given according to their dynamic behaviors.

关 键 词：VISCOELASTIC MATERIAL STRUCTURES THE MODAL FEATURES OF THE VIBRATION SYSTEMS OF THE WEAKLY REAL 

分 类 号：V2-55[航空宇航科学技术]