LIMITS OF THE RESONANCE-SPECTRUM OF TUBE ARRAYS IMMERSED IN A FLUID

被引：6

作者：

CONCA, C

PLANCHARD, J

VANNINATHAN, M

机构：

[1] Departamento de Matemáticas y Ciencias de la Computación, Universidad de Chile, Santiago

[2] Electricité de France, Direction des Etudes et Recherches

[3] Tata Institute, Fundamental Research Center, Bangalore, 560012, Indian Institute of Science Campus

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 1990年 / 4卷 / 05期

关键词：

D O I：

10.1016/0889-9746(90)80017-N

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The resonance frequency spectrum of an elastic tube array placed in a still fluid is spread over a relatively wide interval. This interval depends on the added mass matrix of the bundle. This matrix reflects the mechanical interaction of tubes through the fluid. When the bundle is practically infinite (i.e. with a large number of tubes), the added mass matrix can be expressed by the "Bloch wave" decomposition, valid for infinite periodic structures. That allows to show that the resonance spectrum of the fluid-bundle system is continuous and therefore spread over an interval. It then becomes easy to compute the limits of this interval. Both cases of incompressible and compressible fluids are investigated. © 1990 Academic Press Limited.

引用

页码：541 / 558

页数：18

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