An analogue twin for piezoelectric vibration damping of multiple nonlinear resonances
| Autor: | Gaëtan Kerschen, Jean-François Deü, Boris Lossouarn |
|---|---|
| Přispěvatelé: | Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC), Conservatoire National des Arts et Métiers [CNAM] (CNAM), Université de Liège |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Acoustics and Ultrasonics
Acoustics 02 engineering and technology 01 natural sciences law.invention 0203 mechanical engineering law 0103 physical sciences 010301 acoustics ComputingMilieux_MISCELLANEOUS Physics Mechanical Engineering [SPI.NRJ]Engineering Sciences [physics]/Electric power [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] Condensed Matter Physics Piezoelectricity Vibration Nonlinear system 020303 mechanical engineering & transports Amplitude Modal Mechanics of Materials [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] visual_art Electrical network Electronic component visual_art.visual_art_medium Excitation |
| Zdroj: | Journal of Sound and Vibration Journal of Sound and Vibration, Elsevier, 2021, 511, pp.116323. ⟨10.1016/j.jsv.2021.116323⟩ |
| ISSN: | 0022-460X 1095-8568 |
| DOI: | 10.1016/j.jsv.2021.116323⟩ |
| Popis: | The objective of this study is to extend the concept of analogous piezoelectric networks to vibration mitigation of multiple nonlinear resonances. First, the undamped linear part of the electrical network is designed so as to possess similar modal characteristics as those of the underlying linear mechanical structure. Then, nonlinear electrical components possessing the same mathematical form as that of the mechanical nonlinearities are added to the network. Because both modal and nonlinear analogies are enforced, the electrical network can be seen as an analogue twin of the mechanical structure. When the network is coupled to the structure via an array of piezoelectric elements, it is shown numerically and experimentally that such an analogue twin offers important benefits for vibration mitigation over a broad range of frequencies and excitation amplitudes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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