APPROXIMATE FREQUENCY-DOMAIN ANALYSIS FOR LINEAR DAMPED SPACE STRUCTURES

被引：2

作者：

HAGOOD, NW

CRAWLEY, EF

机构：

[1] Massachusetts Institute of Technology, Cambridge, MA

[2] Space Engineering Research Center, Department of Aeronautics

来源：

AIAA JOURNAL | 1990年 / 28卷 / 11期

基金：

美国国家航空航天局;

关键词：

D O I：

10.2514/3.10504

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A method is presented for the analysis of damped structures in which the structural components are represented by impedance models and analyzed in the frequency domain. Methods are presented to assemble and condense system impedance matrices and then to identify approximate mass, stiffness, and viscous damping matrices for systems whose impedances are complicated functions of frequency. Formulas are derived for determination of approximate values for the natural frequencies and damping of systems represented by mass, stiffness, and viscous damping matrices. The sensitivities of these approximate values to system parameter changes are analyzed. The implementation of these analysis tools is discussed and applied to a simple mechanical system. © 1990 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

引用

页码：1953 / 1961

页数：9

共 20 条

[1] VIBRATION OF PRESTRESSED PERIODIC LATTICE STRUCTURES [J].