文献类型：期刊文献

英文题名：Fluid-Induced Nonlinear Vibration of a Cantilevered Microtube with Symmetric Motion Constraints

作者：Guo, Yong

第一作者：郭勇

通信作者：Guo, Y[1]|[144409b6bc0494589da87]郭勇;

机构：[1]Guizhou Inst Technol, Sch Civil Engn, Guiyang, Peoples R China

第一机构：贵州理工学院土木工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Civil Engn, Guiyang, Peoples R China.|贵州理工学院土木工程学院;贵州理工学院;

年份：2020

卷号：2020

外文期刊名：SHOCK AND VIBRATION

收录：;EI(收录号：20203709176550);Scopus(收录号：2-s2.0-85090586890);WOS:【SCI-EXPANDED(收录号:WOS:000565234300002)】；

基金：This work was supported by Guizhou Institute of Technology under Grant XJGC20190909.

语种：英文

外文关键词：Flow velocity - Galerkin methods - Hopf bifurcation - Ordinary differential equations - Strain energy

摘要：This paper investigates the dynamic behavior of a cantilevered microtube conveying fluid, undergoing large motions and subjected to motion-limiting constraints. Based on the modified couple stress theory and the von Karman relationship, the strain energy of the microtube can be deduced and then the governing equation of motion is derived by using the Hamilton principle. The Galerkin method is applied to produce a set of ordinary differential equations. The effect of the internal material length scale parameter on the critical flow velocity is investigated. By using the projection method, the Hopf bifurcation is demonstrated. The results show that size effect on the vibration properties is significant.