Now showing items 1-15 of 15

  • Análisis modal y dinámico de una pasarela peatonal en servicio 

    Frechilla, N.; Cacho-Pérez, M.; Lorenzana, A. (Universitat Politècnica de Catalunya. CIMNE, 2018)
    Article
    Open Access
    Obras de ingeniería civil como las pasarelas peatonales son estructuras cada vez más esbeltas, ambiciosas y complejas en las que los efectos dinámicos producidos por las solicitaciones a las que están sometidas (peatones) ...
  • Diagnosis methodology for identifying gearbox wear based on statistical time feature reduction 

    Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Osornio Rios, Roque A.; Romero Troncoso, René de Jesús (2017-01-01)
    Article
    Open Access
    Strategies for condition monitoring are relevant to improve the operation safety and to ensure the efficiency of all the equipment used in industrial applications. The feature selection and feature extraction are suitable ...
  • Evaluation of multiclass novelty detection algorithms for electric machine monitoring 

    Ramirez Chavez, Mayra; Ruiz Soto, Lucía; Arellano Espitia, Francisco; Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    The detection of unexpected events represents, currently, one of the most critical challenges dealing with electromechanical system diagnosis. In this regard, machine learning based algorithms widely applied in other fields ...
  • Full-scale wind turbine vibration signature analysis 

    Escaler Puigoriol, Francesc Xavier; Mebarki, Toufik (2018-12-07)
    Article
    Open Access
    A sample of healthy wind turbines from the same wind farm with identical sizes and designs was investigated to determine the average vibrational signatures of the drive train components during normal operation. The units ...
  • Methodology for the experimental evaluation of frequency response functions in the frame of railway-induced or construction-induced groundbourne vibration 

    Arcos Villamarín, Robert; Sans García, Jorge; Romeu Garbí, Jordi; Clot Razquin, Arnau; Cardona Gonyalons, Joan; Oregui, Maider (Sociedade Portuguesa de Acústica, 2016)
    Conference report
    Restricted access - publisher's policy
    In this paper, a methodology for the experimental evaluation of mechanical vibration frequency response functions in the framework of groundbourne railway-induced and construction-induced vibration predictions is presented. ...
  • Modelos numéricos para el análisis del comportamiento de vías férreas 

    Zougari, Ayoub; Martínez Miralles, Jordi Ramon (2012)
    Conference lecture
    Open Access
    Uno de los aspectos que los últimos años ha cobrado especial importancia en el desarrollo del transporte ferroviario es el estudio de las vibraciones y el ruido de rodadura producidos por el tráfico ferroviario. Las ...
  • Multiple-fault detection and identification scheme based on hierarchical self-organizing maps applied to an electric machine 

    Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Romero Troncoso, René; Osornio Rios, Roque A. (2019-08-01)
    Article
    Restricted access - publisher's policy
    Strategies of condition monitoring applied to electric motors play an important role in the competitiveness of multiple industrial sectors. However, the risk of faults coexistence in an electric motor and the overlapping ...
  • Novel condition monitoring approach based on hybrid feature extraction and neural network for assessing multiple faults in electromechanical systems 

    Saucedo Dorantes, Juan Jose; Osornio Rios, Roque A.; Romero Troncoso, René; Delgado Prieto, Miquel; Arellano Espitia, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    New challenges involve the development of new condition monitoring approaches to avoid unexpected downtimes and to ensure the availability of machines during operating working conditions. The feature calculation from ...
  • On some properties of the output of a pulsed digital oscillator working with multiple resonances 

    Blokhina, Elena; Feely, Orla; Ricart Campos, Jordi; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this paper, we study the possible output of the pulsed digital oscillator (PDO) with multiple resonant modes of the mechanical resonator in the feedback loop. PDOs are simple circuits that allow linear resonators to ...
  • PM21 Creping Vibrations August 2011 

    Escaler Puigoriol, Francesc Xavier (2011-09-09)
    External research report
    Restricted access - confidentiality agreement
  • PM21 Creping Vibrations October 2011 

    Escaler Puigoriol, Francesc Xavier (2011-11-21)
    External research report
    Restricted access - confidentiality agreement
  • PM21 Creping Vibrations September 2011 

    Escaler Puigoriol, Francesc Xavier (2011-10-04)
    External research report
    Restricted access - confidentiality agreement
  • Propuesta de fórmula empírica para el factor de pérdidas 

    Rey, R. del; Alba, J.; Ramis, J.; Julia, E.; Segura, J. (Universitat Politècnica de Catalunya. CIMNE, 2012)
    Article
    Open Access
    La evaluación del ruido transmitido por flancos en edificación es esencial para el estudio del aislamiento a ruido aéreo. Desde el punto de vista numérico, para la determinación de las transmisiones laterales es necesario ...
  • Vibration response of a railway track obtained using numerical models based on FEM 

    Zougary, Ayoub; Martínez Miralles, Jordi Ramon; Cardona Foix, Salvador (2012)
    Conference report
    Open Access
    In the last forty years, researchers have developed models of wheel-rail contact force in order to study vibrations and rolling noise caused by railway traffic. These models range from analytical models, who consider a ...
  • Wind speed dependency of low-frequency vibration levels in full-scale wind turbines 

    Escaler Puigoriol, Francesc Xavier; Mebarki, Toufik (2015-12-01)
    Article
    Restricted access - publisher's policy
    A series of continuous vibration measurements in 14 upwind wind turbines of the same model and belonging to the same wind farm have been conducted. The data were acquired over a period lasting approximately half a year. ...