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
收藏
页码：58 / 76
页数：19
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