Now showing items 1-20 of 41

    • A boundary algebraic formulation for plane strain elastodynamic scattering 

      Poblet-Puig, Jordi; Shanin, Andrey (Society for Industrial and Applied Mathematics (SIAM), 2018)
      Article
      Open Access
      Solving of elastodynamic problems arises in many scientific fields such as wave propagation in the ground, non-destructive testing, vibration design of buildings, or vibroacoustics in general. An integral formulation based ...
    • A deterministic model of impact noise transmission through structural connections based on modal analysis 

      Díaz Cereceda, Cristina; Hetherington, Jack; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2011-01-17)
      Article
      Open Access
      Vibration transmission through structural connections is modelled in a deterministic way by means of modal analysis. This model is used first to study the effect of elastic joints across the floor in the transmission of ...
    • A modal-spectral model for flanking transmissions 

      Poblet-Puig, Jordi (2016-11)
      Article
      Open Access
      A model for the prediction of direct and indirect (flanking) sound transmissions is presented. It can be applied to geometries with extrusion symmetry. The structures are modelled with spectral finite elements. The acoustic ...
    • A new numerical method for solving the acoustic radiation problem 

      Poblet-Puig, Jordi; Shanin, Andrey (2018-03)
      Article
      Open Access
      A numerical method of solving the problem of acoustic wave radiation in the presence of a rigid scatterer is described. It combines the finite element method and the boundary algebraic equation one. In the proposed method, ...
    • A numerical technique for obtaining SEA coupling loss factors in double walls 

      Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2012)
      Conference report
      Open Access
      Double walls usually consist of two leaves of material connected by steel studs. Aside from improving the structural performance, studs create a vibration transmission path which connects the two leaves. There is interest ...
    • A subsystem identification method based on the path concept with coupling strength estimation 

      Magrans Fontrodona, Francesc Xavier; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2018-02)
      Article
      Open Access
      For complex geometries, the definition of the subsystems is not a straightforward task. We present here a subsystem identification method based on the direct transfer matrix, which represents the first-order paths. The key ...
    • Amplified catalogue of vibration reduction index formulas for junctions based on numerical simulations 

      Poblet-Puig, Jordi; Guigou-Carter, Catherine (Deutsche Gesellschaft für Akustik e.V. (DEGA), 2016)
      Conference report
      Restricted access - publisher's policy
      The vibration reduction index (Kij) is a key parameter in the prediction of flanking transmissions according to the EN-12354 standard. Formulas for the evaluation of Kij in L, T and X junctions that depend on the mass ratio ...
    • An energy model for the acoustic insulation of absorbing materials 

      Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
      Conference report
      Open Access
      In this work an energy model for the acoustic insulation of absorbing ma- terials is shown. This model is an extension of Statistical Energy Analysis (SEA) [1] in order to account for the effect of non-conservative ...
    • An SEA-like model for double walls filled with absorbing materials 

      Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2012)
      Conference report
      Open Access
      Modelling absorbing materials with statistical energy analysis (SEA) is an open issue. They are neither reverberant subsystems nor conservative couplings. The absorbing material layers located inside the cavities of ...
    • Application of inverse SEA models to obtain the Coupling LossFactor in structural junctions from numerical simulations 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2019)
      Conference report
      Open Access
      An inverse SEA procedure that mimics the Experimental SEA (ESEA) is used in order to obtain the Coupling Loss Factor (CLF) of structural junctions. The main differences with respect to ESEA are that: 1) the subsystem ...
    • Automatic subsystem identification in statistical energy analysis 

      Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2015-03)
      Article
      Open Access
      An automatic methodology for identifying SEA (statistical energy analysis) subsystems within a vibroacoustic system is presented. It consists in dividing the system into cells and grouping them into subsystems via a ...
    • Boundary element method based on preliminary discretization 

      Poblet-Puig, Jordi; Valyaev, Valery; Shanin, Andrey (2014-03)
      Article
      Open Access
      A new numerical method for solving wave diffraction problems is given. The method is based on the concept of boundary elements; i.e., the unknown values are the field values on the surface of the scatterer. An analog of a ...
    • Building performance at low frequency range including flanking transmissions 

      Guigou-Carter, Catherine; Poblet-Puig, Jordi (Deutsche Gesellschaft für Akustik e.V. (DEGA), 2016)
      Conference report
      Restricted access - publisher's policy
      Recent researches have proposed alternative formulas for the estimation of the vibration reduction index (Kij) at junctions. Among other aspects, the new approaches propose different expressions for the low, mid and high ...
    • Caracterización numérica y experimental de un sistema vibroacústico mediante "Advanced Transferer Path Analysis" 

      Cierco, Ester; Vicens Rodríguez, Pere; Aragonès Martín, Àngels; Arcas, Kevin; Poblet-Puig, Jordi; Magrans Fontrodona, Francesc Xavier; Rodríguez Ferran, Antonio (Sociedad Española de Acústica, 2018)
      Conference report
      Restricted access - publisher's policy
      ATPA (Advanced Transfer Path Analysis) is a method that allows knowing the noise paths and contributions of a vibroacoustic problem. It is clear that a good quantification of the less dominant contributions is essential ...
    • Catalogue of vibration reduction index formulas for heavy junctions based on numerical simulations 

      Poblet-Puig, Jordi; Guigou-Carter, Catherine (2017-07)
      Article
      Open Access
      The vibration reduction index (Kij) is a key parameter in the prediction of flanking transmissions according to the EN-12354 standard. Formulas for the evaluation of Kij in L, T and X junctions that depend on the mass ratio ...
    • Dos ejemplos de aplicación de métodos numéricos en la modelización de la transmisión de ruido en edificación 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (SOCIEDAD ESPAÑOLA DE ACÚSTICA, 2005)
      Conference report
      Open Access
      Two applications of numerical techniques to the study of sound transmission are shown. In the first one the sound reduction index of a double wall in the low frequency range is computed solving a vibro acoustic problem ...
    • Educating XXIst century civil engineers in Barcelona 

      Turmo Coderque, José; Estela Carbonell, M. Rosa; Chacón Flores, Rolando Antonio; Gironella Cobos, Xavier; Lloberas Valls, Oriol; Oliver Olivella, Xavier; Poblet-Puig, Jordi; Puigví Burniol, Maria Àngels; Valls del Barrio, Susanna; Díez, Pedro (2017)
      Conference report
      Restricted access - publisher's policy
      The educational programs of Civil Engineering schools have evolved to adapt to changes in society demands and regulations. Specifically, Civil Engineering curricula in Spain was highly impacted by the Bolonia Declaration ...
    • Eigenvalue and eigenmode synthesis in elastically coupled subsystems 

      Magrans Fontrodona, Francesc Xavier; Poblet-Puig, Jordi (2018-10-13)
      Article
      Restricted access - publisher's policy
      A method to synthesize the modal characteristics of a system from the modal characteristics of its subsystems is proposed. The interest is focused on those systems with elastic links between the parts which is the main ...
    • Error estimation in vibroacoustic problems solved by means of finite elements 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2010-06)
      Conference report
      Open Access
      The vibroacoustic equations can be solved by means of the finite element method. A discretisation of the structure and the acoustic domains is required and highly influences the quality of the numerical solution. There ...
    • Experimental and numerical characterization of metallic studs 

      Poblet-Puig, Jordi; Guigou-Carter, C; Villot, M; Rodríguez Ferran, Antonio (European Acoustics Association, 2006)
      Conference report
      Open Access
      In this paper, the characterization of metallic studs used to mount lightweight double wall systems is studied both experimentally and numerically. The metallic studs are usually considered by introducing translational and ...