Acoustic input impedance of a vibrating cylindrical tube

被引：6
|
作者：
Pico, R.
Gautier, F.
Redondo, J.
机构：
[1] Univ Politecn Valencia, Dept Fis Aplicada, Esc Politecn Super Gandia, Valencia 46700, Spain
[2] Univ Maine, Acoust Lab, CNRS, UMR 6613, F-72085 Le Mans 9, France
来源：
JOURNAL OF SOUND AND VIBRATION | 2007年 / 301卷 / 3-5期
关键词：
D O I：
10.1016/j.jsv.2006.10.030
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
An analytical approach to the acoustic input impedance of vibrating cylindrical pipes is considered. The variation in the acoustic impedance introduced by wall vibrations is calculated using the integro-modal method taking into account axisyminetric shell vibration. It is shown that this variation can be interpreted as a small correction in the acoustic input impedance when the walls of the shell do not influence the acoustics in the pipe. Special conditions Such as the mechanical resonance condition and spatial coincidence effect lead to maximum values of the correction factor for the input impedance. The results allow us to determine Particular shell parameters for which the input impedance is strongly affected by wall vibrations. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：649 / 664
页数：16
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