Dynamics of microscale pipes containing internal fluid flow: Damping, frequency shift, and stability

被引：86

作者：

Rinaldi, Stephanie ^{[1
]}

Prabhakar, Sairam ^{[1
]}

Vengallatore, Srikar ^{[1
]}

Paidoussis, Michael P. ^{[1
]}

机构：

[1] McGill Univ, Dept Mech Engn, Montreal, PQ H3A 2K6, Canada

来源：

JOURNAL OF SOUND AND VIBRATION | 2010年 / 329卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DESIGN; PROBE;

D O I：

10.1016/j.jsv.2009.10.025

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper initiates the theoretical analysis of microscale resonators containing internal flow, modelled here as microfabricated pipes conveying fluid, and investigates the effects of flow velocity on damping, stability, and frequency shift. The analysis is conducted within the context of classical continuum mechanics, and the effects of structural dissipation (including thermoelastic damping in hollow beams), boundary conditions, geometry, and flow velocity on vibrations are discussed. A scaling analysis suggests that slender elastomeric micropipes are susceptible to instability by divergence (buckling) and flutter at relatively low flow velocities of similar to 10 m/s. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1081 / 1088

页数：8

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