Stability Analysis of a Heterogeneous Periodic Fluid-Conveying Nanotube System

作     者：Jiayin Dai Yongshou Liu Guojun Tong Jiayin Dai;Yongshou Liu;Guojun Tong

作者机构：Department of Engineering MechanicsNorthwestern Polytechnical UniversityXi’an 710129China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2020年第33卷第6期

页      面：756-769页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Heterogeneous nanotube Dynamic stiffness method Periodic structure Nanotube conveying fluid Stability analysis 

摘      要：In this paper,the stability of a periodic heterogeneous nanotube conveying fluid is *** governing equations of the nanotube system are derived based on the nonlocal Euler-Bernoulli beam *** dynamic stiffness method is employed to analyze the natural frequencies and critical flow velocities of the *** results and discussions are presented from three aspects which reveal the influences of period number,material length ratio and boundary *** particular,we make comparisons between the heterogeneous nanotubes with periodic structure and the homogeneous ones with the same integral values of material properties along the longitudinal direction to isolate the influences of periodic *** to the simulation results,we can conclude that with a proper selection of period number in terms of length ratio,the stability of the constructed nanotube can be improved.