Exploració per altres contribucions "Universitat Politècnica de Catalunya. LEAM - Laboratori d'Enginyeria Acústica i Mecànica"
Ara es mostren els items 1-20 de 108
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2.5D singular boundary method for exterior acoustic radiation and scattering problems
(2022-10)
Article
Accés obertIn this paper, a numerical methodology based on a two-and-a-half-dimensional (2.5D) singular boundary method (SBM) to deal with acoustic radiation and scattering problems in the context of longitudinally invariant structures ... -
A 2.5D automatic FEM-SBM method for the evaluation of free-field vibrations induced by underground railway infrastructures
(2022)
Text en actes de congrés
Accés obertThis 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 ... -
A 2.5D coupled FEM-BEM-MFS methodology for longitudinally invariant soil-structure interaction problems
(Elsevier, 2021-04)
Article
Accés obertThis paper is concerned with a new prediction methodology for longitudinally invariant soil-structure interaction problems in elastodynamics. The method uses the finite-element method to model the structure, the boundary-element ... -
A 2.5D coupled FEM–SBM methodology for soil–structure dynamic interaction problems
(Elsevier, 2022-01-01)
Article
Accés obertIn this paper, a novel numerical methodology to deal with longitudinally invariant soil–structure interaction problems is proposed. The methodology uses the finite element method to model the structure and the singular ... -
A 2.5D FEM-BEM-MFS methodology for soil-structure interaction problems in layered half-spaces
(2020)
Text en actes de congrés
Accés obertIn this paper, a new prediction methodology to deal with longitudinally invariant soil-structure interaction problems in elastodynamics is presented. The method uses the finite-element method to model the structure, the ... -
A hybrid methodology for the assessment of railway-induced ground-borne noise and vibration in buildings based on experimental measurement in the ground surface
(Sociedad Española de Acústica, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a hybrid experimental/numerical methodology for the assessment of railwayinduced ground-borne noise and vibration in buildings based on experimental measurement in the ground surface is presented. This ... -
A low-cost noise measurement device for noise mapping based on mobile sampling
(2019-12-01)
Article
Accés obertFor the production of representative noise maps, a large amount of information is necessary, which includes, among others, on-site measurements of environmental noise. Thus, mobile sampling emerges as a possible solution ... -
A method based on 3D stiffness matrices in Cartesian coordinates for computation of 2.5D elastodynamic Green's functions of layered half-spaces
(Elsevier, 2018-11-01)
Article
Accés obertThis 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. ... -
A methodology based on 2.5D FEM-BEM for the evaluation of the vibration energy flow radiated by underground railway infrastructures
(Elsevier, 2020-07-01)
Article
Accés obertIn this paper, a comprehensive numerical approach for modelling track/tunnel/soil systems in the context of ground-borne railway-induced vibration problems considering a full-space model of the soil is proposed. All the ... -
A methodology based on sructural finite element Method-Boundary element method and acoustic boundary element method models in 2.5D for the prediction of reradiated noise in Railway-Induced Ground-Borne vibration problems
(2019-06-01)
Article
Accés restringit per política de l'editorialThis work is focused on the analysis of noise and vibration generated in underground railway tunnels due to train traffic. Specifically, an analysis of noise and vibration generated by train passage in an underground simple ... -
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
(Springer, 2019)
Comunicació de congrés
Accés restringit per política de l'editorialIn this paper, a comprehensive numerical approach formulated in two-and-a-half dimension (2.5D) for modelling track/tunnel/soil systems in the context of ground-borne railway-induced vibration problems considering a ... -
A methodology for the calculation of the noise radiated by the rails and the tunnel structure in railway tunnels
(Sociedad Española de Acústica (SEA), 2019)
Text en actes de congrés
Accés obertIn this paper, a robust and fast numerical methodology to compute re-radiated noise in underground railway tunnels is proposed. In this study, the noise analysis does not account for the noise radiation from the train ... -
A numerical and scaled experimental study on ride comfort enhancement of a high-speed rail vehicle through optimizing traction rod stiffness
(SAGE PUBLICATIONS INC, 2021)
Article
Accés obertIn this research, the effect of rail vehicle carbody’s flexural modes on the ride comfort of an example high-speed railway vehicle is investigated. The vehicle is modeled as a rigid multi-body system, where the rigid body ... -
A power flow analysis of a double-deck circular tunnel embedded in a full-space
(2014-02)
Article
Accés restringit per política de l'editorialThe purpose of the present investigation is to obtain the mean power flow radiated by a double-deck circular tunnel and compares it to the one radiated by a simple circular tunnel. To achieve this, a harmonic line load is ... -
A predictive model for fracture in human ribs based on in-vitro acoustic emission data
(2021-09-01)
Article
Accés obertPurpose The aim of this paper is to propose a fracture model for human ribs based on acoustic emission (AE) data. The accumulation of microcracking until a macroscopic crack is produced can be monitored by AE. The ... -
A stochastic model for soft tissue failure using acoustic emission data
(2015-07-15)
Article
Accés obertThe strength of soft tissues is due mainly to collagen fibers. In most collagenous tissues, the arrangement of the fibers is random, but has preferred directions. The random arrangement makes it difficult to make deterministic ... -
Acelerómetros y sensores de vibración
(2010-04)
Article
Accés restringit per política de l'editorial -
Acoustic emission at the wheel-rail contact with micro-slip and stick-slip
(2022)
Text en actes de congrés
Accés obertThe paper aimsto analyse the occurrence of acoustic emission at the wheel-rail contact during microslip. The experimental model allows the different loads and the low sliding speeds specific to the wheel-rail contact. It ... -
Active control of aircraft fly-over sound transmission through an open window
(2014-04-13)
Article
Accés restringit per política de l'editorialThis paper presents an experimental work on active control of sound transmission through a restricted opening bottom hinged window. The main goal of the work is to demonstrate the feasibility of the active technique to ... -
Active control of sound transmission through an aperture in a thin wall
(2014)
Text en actes de congrés
Accés obertThe reduction on sound transmission through an aperture by active means is theoretically investigated. The primary field is composed by a plane wave that arrives at a rectangular aperture placed in an infinite rigid thin ...