Acoustic metastructure for effective low-frequency acoustic energy harvesting

Autor: Ming Yuan, Ziping Cao, Jun Luo, Roger Ohayon

Publikováno v: Journal of Low Frequency Noise, Vibration and Active Control, Vol 37 (2018)

In this study, a multifunctional acoustic metastructure is proposed to achieve both effective low-frequency sound isolation and acoustic energy harvesting. A metallic substrate with proof mass is adopted to generate the local resonant phenomenon for

Externí odkaz: https://doaj.org/article/280c729f351543a9bfc71b20d12a79fe

Advanced Computational Vibroacoustics : Reduced-Order Models and Uncertainty Quantification

Autor: Roger Ohayon, Christian Soize

Advanced Computational Vibroacoustics presents an advanced computational method for the prediction of sound and structural vibrations, in low- and medium-frequency ranges - complex structural acoustics and fluid-structure interaction systems encounte

Novel formulation for the effects of sloshing with capillarity on elastic structures in linear dynamics

Autor: Christian Soize, Evangéline Capiez-Lernout, Quentin Akkaoui, Roger Ohayon

Publikováno v: International Journal for Numerical Methods in Engineering
International Journal for Numerical Methods in Engineering, Wiley, 2021, 122 (19), pp.5313-5330. ⟨10.1002/nme.6290⟩
International Journal for Numerical Methods in Engineering, Wiley, 2020, pp.1-21. ⟨10.1002/nme.6290⟩

International audience; This paper is devoted to the linear dynamics of liquid-structure interactions for an elastic structure filled with compressible liquid (acoustic liquid), with sloshing and with capillarity effects on the free surface in presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cfcbd001a36bc20431ed34ab38eafdf
https://hal-upec-upem.archives-ouvertes.fr/hal-02461304

Long-range impact localization with a frequency domain triangulation technique: Application to a large aircraft composite panel

Autor: Dimitri Goutaudier, Didier Gendre, Roger Ohayon, Véronique Kehr-Candille

Publikováno v: Composite Structures
Composite Structures, Elsevier, 2020, 238 (111973), pp.1-9. ⟨10.1016/j.compstruct.2020.111973⟩

International audience; Classical triangulation techniques determine the impact point by capturing the Time of Arrival (TOA) delays of some elastic waves at different sensor locations. This paper presents an impact localization technique that exploit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0a4d97e5b61d7d8a475d2e875ad1a5f
https://hal.archives-ouvertes.fr/hal-02493748/file/DMAS20025.1582715158_postprint.pdf

Uncertainty quantification for dynamics of geometrically nonlinear structures coupled with internal acoustic fluids in presence of sloshing and capillarity

Autor: Christian Soize, Quentin Akkaoui, Evangéline Capiez-Lernout, Roger Ohayon

Publikováno v: Journal of Fluids and Structures
Journal of Fluids and Structures, Elsevier, 2020, 94, pp.102966. ⟨10.1016/j.jfluidstructs.2020.102966⟩

International audience; In this paper, we propose an uncertainty quantification analysis, which is the continuation of a recent work performed in a deterministic framework. The fluid-structure system under consideration is the one experimentally stud

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d77c7208ce565248f5f0ea1bc01fb4c5
https://hal.archives-ouvertes.fr/hal-02501461