Waves in thin-walled fluid-filled ducts with arbitrary cross-sections

被引：22

作者：

Nilsson, C. -M. ^{[1
]}

Finnveden, S. ^{[1
]}

机构：

[1] KTH, MWL, SE-10044 Stockholm, Sweden

来源：

JOURNAL OF SOUND AND VIBRATION | 2008年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/j.jsv.2007.07.081

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

First, a variational formulation for fluid-shell coupling is presented. Subsequently new waveguide finite elements for fluid and fluid-shell coupling are derived from this formulation. Together with previously derived elements, modelling thin-walled shells, equations for pipes and ducts with arbitrary cross-sections may be formulated. Two examples, one pipe and one duct, are presented together with dispersion curves for the respective case. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：58 / 76

页数：19

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