Vertical beam modal response in a broadband energy harvester
| Autor: | Andrzej Rysak, Grzegorz Litak, J. Gier, Marek Borowiec, Michael Scheffler |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Acoustics Modal analysis Non-linear vibrations broadband energy harvesting piezoceramic 02 engineering and technology Structural engineering Kinematics 021001 nanoscience & nanotechnology Condensed Matter Physics Vibration Nichtlineare Schwingungen breitbandige Energiegewinnung Piezokeramik 020303 mechanical engineering & transports Modal 0203 mechanical engineering Physics::Accelerator Physics ddc:530 Shaker Laser scanning vibrometry 0210 nano-technology business Excitation Beam (structure) |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics. 230:541-552 |
| ISSN: | 2041-3068 1464-4193 |
| DOI: | 10.1177/1464419316633565 |
| Popis: | We examined energy harvesting using a vertical composite laminate beam with an additional moving mass subjected to kinematic harmonic excitation. The gravity effect and the moving tip mass applied to the system cause considerable changes in effective spring-mass characteristics of the bending beam. Simultaneously, we observed dynamical beam damping by an additional degree of freedom and non-linear effects including friction between the moving mass and the beam structure. The experiments were performed on the beam excited kinematically by a shaker, while beam velocity measurements were made by a scanning laser vibrometer. We applied modal analysis in the limit of a fairly low excitation level. The selected modal vibrations are illustrated by corresponding output time series. |
| Databáze: | OpenAIRE |
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