Coriolis Effect on elastic waves propagating in rods
| Autor: | Goksen G. Yaralioglu, Hakan Çetin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics::Computational Physics
Physics Acoustics and Ultrasonics Wave propagation Mechanical Engineering 02 engineering and technology Radius Mechanics Physics::Classical Physics Condensed Matter Physics Rotation 01 natural sciences Rod Computer Science::Other Physics::Geophysics Vibration Wavelength 020303 mechanical engineering & transports 0203 mechanical engineering Flexural strength Mechanics of Materials 0103 physical sciences Wavenumber 010301 acoustics |
| Zdroj: | Journal of Sound and Vibration. 485:115545 |
| ISSN: | 0022-460X |
| DOI: | 10.1016/j.jsv.2020.115545 |
| Popis: | 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 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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