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Main Authors: Goldsberry, Benjamin M., Norris, Andrew N., Wallen, Samuel P., Haberman, Michael R.
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2409.02829
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author Goldsberry, Benjamin M.
Norris, Andrew N.
Wallen, Samuel P.
Haberman, Michael R.
author_facet Goldsberry, Benjamin M.
Norris, Andrew N.
Wallen, Samuel P.
Haberman, Michael R.
contents The forced time harmonic response of a spatiotemporally-modulated elastic beam of finite length with light damping is derived using a novel Green's function approach. Closed-form solutions are found that highlight unique mode coupling effects that are induced by spatiotemporal modulation, such as split resonances that are tunable with the modulation parameters. These effects of order unity are caused by spatiotemporal modulation with small amplitude appropriately scaled to the magnitude of the light damping. The scalings identified here between the modulation amplitude, the damping, and the inner range of frequency near the modified resonances, translate over to more complicated and higher dimensional elastic systems.
format Preprint
id arxiv_https___arxiv_org_abs_2409_02829
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Green's Function Approach to Model Vibrations of Beams with Spatiotemporally Modulated Properties
Goldsberry, Benjamin M.
Norris, Andrew N.
Wallen, Samuel P.
Haberman, Michael R.
Applied Physics
The forced time harmonic response of a spatiotemporally-modulated elastic beam of finite length with light damping is derived using a novel Green's function approach. Closed-form solutions are found that highlight unique mode coupling effects that are induced by spatiotemporal modulation, such as split resonances that are tunable with the modulation parameters. These effects of order unity are caused by spatiotemporal modulation with small amplitude appropriately scaled to the magnitude of the light damping. The scalings identified here between the modulation amplitude, the damping, and the inner range of frequency near the modified resonances, translate over to more complicated and higher dimensional elastic systems.
title Green's Function Approach to Model Vibrations of Beams with Spatiotemporally Modulated Properties
topic Applied Physics
url https://arxiv.org/abs/2409.02829