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25 results on '"Clot, Arnau"'

4. Design of Railway-Induced Ground-Borne Vibration Abatement Solutions to be Applied in Railway Tunnels by Means of a Hybrid Modelling Approach

Author

Arcos, Robert, Ghangale, Dhananjay, Noori, Behshad, Liravi, Hassan, Clot, Arnau, Romeu, Jordi, Hirschel, Ernst Heinrich, Founding Editor, Schröder, Wolfgang, Series Editor, Boersma, Bendiks Jan, Editorial Board Member, Fujii, Kozo, Editorial Board Member, Haase, Werner, Editorial Board Member, Leschziner, Michael A., Editorial Board Member, Periaux, Jacques, Editorial Board Member, Pirozzoli, Sergio, Editorial Board Member, Rizzi, Arthur, Editorial Board Member, Roux, Bernard, Editorial Board Member, Shokin, Yurii I., Editorial Board Member, Mäteling, Esther, Managing Editor, Degrande, Geert, editor, Lombaert, Geert, editor, Anderson, David, editor, de Vos, Paul, editor, Gautier, Pierre-Etienne, editor, Iida, Masanobu, editor, Nelson, James Tuman, editor, Nielsen, Jens C. O., editor, Thompson, David J., editor, Tielkes, Thorsten, editor, and Towers, David A., editor

Published
2021
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5. Assessment of Dynamic Vibration Absorbers Efficiency as a Countermeasure for Ground-Borne Vibrations Induced by Train Traffic in Double-Deck Tunnels Using an Energy Flow Criterion

Author

Noori, Behshad, Arcos, Robert, Clot, Arnau, Romeu, Jordi, Hirschel, Ernst Heinrich, Founding Editor, Schröder, Wolfgang, Series Editor, Boersma, Bendiks Jan, Editorial Board Member, Fujii, Kozo, Editorial Board Member, Haase, Werner, Editorial Board Member, Leschziner, Michael A., Editorial Board Member, Periaux, Jacques, Editorial Board Member, Pirozzoli, Sergio, Editorial Board Member, Rizzi, Arthur, Editorial Board Member, Roux, Bernard, Editorial Board Member, Shokin, Yurii I., Editorial Board Member, Mäteling, Esther, Managing Editor, Degrande, Geert, editor, Lombaert, Geert, editor, Anderson, David, editor, de Vos, Paul, editor, Gautier, Pierre-Etienne, editor, Iida, Masanobu, editor, Nelson, James Tuman, editor, Nielsen, Jens C. O., editor, Thompson, David J., editor, Tielkes, Thorsten, editor, and Towers, David A., editor

Published
2021
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6. A Methodology for the Assessment of Underground Railway-Induced Vibrations Based on Radiated Energy Flow Computed by Means of a 2.5D FEM-BEM Approach

Author

Ghangale, Dhananjay, Arcos, Robert, Clot, Arnau, Romeu, Jordi, Hirschel, Ernst Heinrich, Founding Editor, Schröder, Wolfgang, Series Editor, Boersma, Bendiks Jan, Editorial Board Member, Fujii, Kozo, Editorial Board Member, Haase, Werner, Editorial Board Member, Leschziner, Michael A., Editorial Board Member, Periaux, Jacques, Editorial Board Member, Pirozzoli, Sergio, Editorial Board Member, Rizzi, Arthur, Editorial Board Member, Roux, Bernard, Editorial Board Member, Shokin, Yurii I., Editorial Board Member, Mäteling, Esther, Managing Editor, Degrande, Geert, editor, Lombaert, Geert, editor, Anderson, David, editor, de Vos, Paul, editor, Gautier, Pierre-Etienne, editor, Iida, Masanobu, editor, Nelson, James Tuman, editor, Nielsen, Jens C. O., editor, Thompson, David J., editor, Tielkes, Thorsten, editor, and Towers, David A., editor

Published
2021
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18. A 2.5D automatic FEM-SBM method for the evaluation of free-field vibrations induced by underground railway infrastructures.

Author

Liravi, Hassan, Clot, Arnau, and Arcos, Robert

Subjects
RAILROAD design & construction, SOUND systems, SOUNDPROOFING, NOISE control, ACOUSTICAL engineering
Abstract

This paper presents an efficient method to predict underground railway-induced vibrations. The method uses the finite element method (FEM) to model the railway tunnel structure and the singular boundary method (SBM) to model the wave propagation in the surrounding soil. The FEM mesh and the distribution of SBM collocation points at the tunnel/soil interface are generated using an automatic meshing strategy. The presented method is one of the main components of VIBWAY, a user-friendly prediction tool to address railway-induced vibration problems. This paper presents three calculation examples in which the soil response due to forces applied on the tunnel structure are computed in terms of transfer functions. The results obtained for each one of the calculation examples are compared with those computed using a model based on a 2.5D FEM-BEM approach. The presented comparisons show that the proposed approach is a suitable strategy for predicting underground railway-induced vibrations, both in terms of accuracy and computational efficiency. Moreover, the use of an automatic meshing strategy and the SBM formulation not only eases the implementation of the approach but it also makes it easier to use, which is one of the key features of the VIBWAY tool. [ABSTRACT FROM AUTHOR]

Published
2023
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19. VIBWAY: A user-friendly computational tool for the prediction of railway-induced ground-borne noise and vibration.

Author

Arcos, Robert, Conto, Kenny F., Liravi, Hassan, Jorge Soares, Paulo, Clot, Arnau, and Romeu, Jordi

Subjects
TOOLBOXES, VIBRATION (Mechanics), ACOUSTICAL engineering, SOUND systems, SOUNDSCAPES (Auditory environment)
Abstract

This paper aims to introduce preliminary statement of methods of a computationally efficient and user-friendly toolbox, called VIBWAY, able to predict vibration and re-radiated noise levels in two situations. On the one hand, it can predict levels in existing buildings due to new lines or after the application of mitigation measures in existing operational railway infrastructures. Thus, it can be used to assess the performance of vibration countermeasures applied at the track, at the soil and/or at the building. On the other hand, it can predict levels in new buildings to be constructed close to an existing railway line from vibration measurements in the surface of the ground where the building will be constructed. The VIBWAY toolbox is based on a non-interface 2.5D FEM-SBM approach for the wave propagation on the soil, on semi-analytical approaches for the track and the building and on rigid multibody dynamics modelling of the train vehicle. [ABSTRACT FROM AUTHOR]

Published
2023
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23. A method based on 3D stiffness matrices in Cartesian coordinates for computation of 2.5D elastodynamic Green's functions of layered half-spaces

Author

Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica, Universitat Politècnica de Catalunya. LEAM - Laboratori d'Enginyeria Acústica i Mecànica, Noori, Behshad, Arcos Villamarín, Robert, Clot, Arnau, Romeu Garbí, Jordi, Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica, Universitat Politècnica de Catalunya. LEAM - Laboratori d'Enginyeria Acústica i Mecànica, Noori, Behshad, Arcos Villamarín, Robert, Clot, Arnau, and Romeu Garbí, Jordi

Abstract

This article elaborates on an extension to the classical stiffness matrix method to obtain the Green's functions for two-and-a-half dimensional (2.5D) elastodynamic problems in homogeneous and horizontally layered half-spaces. Exact expressions for the three-dimensional (3D) stiffness matrix method for isotropic layered media in Cartesian coordinates are used to determine the stiffness matrices for a system of horizontal layers underlain by an elastic half–space. In the absence of interfaces, virtual interfaces are considered at the positions of external loads. The analytic continuation is used to find the displacements at any receiver point placed within a layer. The responses of a horizontally layered half-space subjected to a unit harmonic load obtained using the present method are compared with those calculated using a well-established methodology, achieving good agreement, Postprint (author's final draft)

Published
2018

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