Simultaneous parametric estimation of shape and impedance of a scattering surface using a multi-frequency fast indirect boundary element method

Li, Yue; Cuenca, Jacques; Ryck, Laurent De; Alkmim, Mansour; Atak, Onur; Desmet, Wim; Dolcetti, Giulio; Krynkin, Anton

doi:10.1016/j.jsv.2022.117494

Cited by 4 publications

(2 citation statements)

References 46 publications

(70 reference statements)

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“…More recent approaches attempted to directly reconstruct the instantaneous shape of the water surface based on simultaneous measurements of the scattered electromagnetic [28], [29] or acoustic [30]- [35] signal at different receivers along an array. These methods, derived for static surfaces, neglect the effects of the surface dynamics on the scattered field (e.g., Doppler shift), which can limit the reliability of the reconstruction over longer periods of time.…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of the Frequency-Wavenumber Spectrum of Water Waves With an Airborne Acoustic Doppler Array for Noncontact River Monitoring

Dolcetti,

Krynkin,

Alkmim

et al. 2024

IEEE Trans. Geosci. Remote Sensing

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Section: Introductionmentioning

confidence: 99%

Reconstruction of the Frequency-Wavenumber Spectrum of Water Waves With an Airborne Acoustic Doppler Array for Noncontact River Monitoring

Dolcetti,

Krynkin,

Alkmim

et al. 2024

IEEE Trans. Geosci. Remote Sensing

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“…This paper employs this recently developed technique for the inverse identification of the acoustic impedance of a porous layer placed within the KU Leuven soundbox. The approach of this paper follows a similar logic to the one presented within [12]. However, employing a parametric reduced order model as presented in [1] results in a more efficient approach allowing not only multiple iterations across different acoustic impedance values but also inverse identification for multiple frequencies, thus enabling complicated impedance functions.…”

Section: Introductionmentioning

confidence: 99%

Inverse impedance identification using an efficient BEM strategy

Panagiotopoulos,

Deckers

2024

Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023

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Limited accessibility often restricts the possibility of directly measuring the true acoustic properties of existing components. In that context, this paper investigates a hybrid approach for the inverse identification of the acoustic impedance of components, by combining microphone measurements with highly efficient acoustic Boundary Element Method (BEM) models. The modeling efficiency, achieved through a parametric model order reduction (pMOR) technique for BEM models [1], facilitates the fast transition among models with different impedance values and thus, greatly accelerates the inverse identification scheme. The effectiveness of the proposed technique is demonstrated with the well-studied example of the KU Leuven soundbox test setup [2].

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Wideband Vibro-Acoustic Coupling Investigation in Three Dimensions Using Order-Reduced Isogeometric Finite Element/Boundary Element Method

Xu,

Zhang,

Wang

et al. 2024

JMSE

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This study introduces an innovative model-order reduction (MOR) technique that integrates boundary element and finite element methodologies, streamlining the analysis of wideband vibro-acoustic interactions within aquatic and aerial environments. The external acoustic phenomena are efficiently simulated via the boundary element method (BEM), while the finite element method (FEM) adeptly captures the dynamics of vibrating thin-walled structures. Furthermore, the integration of isogeometric analysis within the finite element/boundary element framework ensures geometric integrity and maintains high-order continuity for Kirchhoff–Love shell models, all without the intermediary step of meshing. Foundational to our reduced-order model is the application of the second-order Arnoldi method coupled with Taylor expansions, effectively eliminating the frequency dependence of system matrices. The proposed technique significantly enhances the computational efficiency of wideband vibro-acoustic coupling analyses, as demonstrated through numerical simulations.

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Simultaneous parametric estimation of shape and impedance of a scattering surface using a multi-frequency fast indirect boundary element method

Cited by 4 publications

References 46 publications

Reconstruction of the Frequency-Wavenumber Spectrum of Water Waves With an Airborne Acoustic Doppler Array for Noncontact River Monitoring

Reconstruction of the Frequency-Wavenumber Spectrum of Water Waves With an Airborne Acoustic Doppler Array for Noncontact River Monitoring

Inverse impedance identification using an efficient BEM strategy

Wideband Vibro-Acoustic Coupling Investigation in Three Dimensions Using Order-Reduced Isogeometric Finite Element/Boundary Element Method

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