Propagation of steady-state vibration in periodic pipes conveying fluid on elastic foundations with external moving loads

被引：32
|
作者：
Yu, Dianlong [1 ,2 ]
Wen, Jihong [1 ,2 ]
Shen, Huijie [1 ,2 ]
Wen, Xisen [1 ,2 ]
机构：
[1] Natl Univ Def Technol, Lab Sci & Technol Integrated Logist Support, Changsha 410073, Hunan, Peoples R China
[2] Natl Univ Def Technol, MOE Key Lab Photon & Phonon Crystals, Changsha 410073, Hunan, Peoples R China
来源：
PHYSICS LETTERS A | 2012年 / 376卷 / 45期
基金：
中国国家自然科学基金;
关键词：
Pipe; Band gap; Moving load; Elastic foundation; DYNAMIC STABILITY; INSTABILITY; SHELLS; SOUND; BEAMS;
D O I：
10.1016/j.physleta.2012.09.041
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The propagation of steady-state vibration in a periodic pipe conveying fluid on elastic foundation with an external moving load is studied using wave propagation and attenuation theory. Wavenumbers and propagation properties in a moving coordinate system are investigated. The propagation constants are calculated using transfer matrix theory to determine whether the perturbation, which is introduced by an external moving load, can propagate through the pipe or not. The Bragg and locally resonant band gaps, corresponding to the velocity field, can exist in a periodic pipe system. In addition, the effects on both types of band gaps have been analysed. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：3417 / 3422
页数：6
相关论文
共 50 条
12345