Electrical analogs of curved beams and application to piezoelectric network damping
| Autor: | Francesco dell’Isola, Ivan Giorgio, Robin Darleux, Jean-François Deü, Boris Lossouarn |
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| Přispěvatelé: | Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC), Conservatoire National des Arts et Métiers [CNAM] (CNAM), International Research Center for the Mathematics & Mechanics of Complex Systems (MEMOCS), Università degli Studi dell'Aquila (UNIVAQ) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
vibration mitigation
Analog synthesis Materials science General Mathematics Acoustics piezoelectric coupling Electromechanical analogy lumped-element model multimodal damping 02 engineering and technology Vibration mitigation 021001 nanoscience & nanotechnology Piezoelectricity [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] 020303 mechanical engineering & transports 0203 mechanical engineering electromechanical analogy Mechanics of Materials General Materials Science Arch 0210 nano-technology Piezoelectric coupling |
| Zdroj: | Mathematics and Mechanics of Solids Mathematics and Mechanics of Solids, SAGE Publications, 2021, pp.108128652110276. ⟨10.1177/10812865211027622⟩ |
| ISSN: | 1081-2865 |
| DOI: | 10.1177/10812865211027622⟩ |
| Popis: | International audience; In this paper, the method of electric analog synthesis is applied to design a piezo-electro-mechanical arch able to show the capacity of multimodal damping. An electric-analog circuit is designed by using a finite number of lumped elements representing the equivalent of a curved beam. Spatial and frequency coherence conditions are proven to be verified for the modes to be damped: in fact, lumped-element circuit can damp only a finite number of vibration modes. Analogous boundary conditions are ensured, so that natural frequencies and mode shapes of both the curved beam and the analog circuit are equal. The instance considered here is the vibration mitigation of a piezo-electro-mechanical arch. Having a view towards prototypical applications, all simulations consider values of physically feasible passive circuital elements. It is believed that the present results may represent a step towards the design of multi-physics metamaterials based on micro-structures exploiting the principle of multimodal damping. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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