Author
Çetin, Hakan, Yaralıoğlu, Göksen Göksenin
Publication Date
2020-10-27
Publication Place
-
Elsevier
Subject
Coriolis force, Cylindrical rod, Coriolis coupling, Elastic waves, Rotation, Wavenumber shift
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
0022-460X
Record ID
075e5651-646d-471f-8585-a75b867447f8
Library Location
Electrical & Electronics Engineering
Date
2020-10-27
Notes
TÜBİTAK
Sample Text
Vibration analysis of rods that are subjected to rotation is presented. It is shown that flexural-flexural, longitudinal-flexural and torsional-flexural wave coupling occur due to the Coriolis Effect. First, we carried out our analysis for thin rods where the wavelength is much larger than the radius. It is shown that the wavenumbers change due to the Coriolis Effect. Then, we characterize the 3-D wave propagation in rotating rods by using the Finite Element Method (FEM) in order to determine the corresponding wavenumber shifts for each type of wave. We show that for different drive frequency (ω0) and rotation rate (Ω), wave couplings exhibit different characteristics. For flexural-flexural wave coupling, the wavenumber increases for the primary flexural wave whereas the wave number decreases for the coupled flexural wave where Ω < ω0. For the Coriolis coupling between flexural-longitudinal waves, the wavenumber increases for the flexural wave and decreases for the longitudinal wave where Ω < ω0. For the Coriolis coupling between flexural-torsional waves, the wavenumber increases for both flexural and torsional waves.
DOI
10.1016/j.jsv.2020.115545
Cilt
485
