Enviaments recents

  • Event-driven observer-based smart-sensors for output feedback control of linear systems 

    Acho Zuppa, Leonardo (MDPI AG, 2017-09-04)
    Article
    Accés obert
    This paper deals with a recent design of event-driven observer-based smart sensors for output feedback control of linear systems. We re-design the triggering mechanism proposed in a previously reported system with the ...
  • Hybrid passivity based and fuzzy type-2 controller for chaotic and hyper-chaotic systems 

    Serrano, Fernando E.; Rossell Garriga, Josep Maria (2017-06-15)
    Article
    Accés obert
    In this paper a hybrid passivity based and fuzzy type-2 controller for chaotic and hyper-chaotic systems is presented. The proposed control strategy is an appropriate choice to be implemented for the stabilization of chaotic ...
  • Structural damage continuous monitoring by using a data driven approach based on principal component analysis and cross-correlation analysis 

    Camacho-Navarro, Jhonatan; Ruiz Ordóñez, Magda; Villamizar Mejía, Rodolfo; Mujica Delgado, Luis Eduardo; Moreno Beltran, Gustavo Adolfo; Quiroga, Jabid (Institute of Physics (IOP), 2017)
    Article
    Accés obert
    Continuous monitoring for damage detection in structural assessment comprises implementation of low cost equipment and efficient algorithms. This work describes the stages involved in the design of a methodology with high ...
  • Estimation of dispersion curves by combining effective elastic constants and SAFE method: a case study in a plate under stress 

    Quiroga, Jabid; Mujica Delgado, Luis Eduardo; Villamizar Mejía, Rodolfo; Ruiz Ordóñez, Magda; Camacho-Navarro, Jhonatan (Institute of Physics (IOP), 2017)
    Article
    Accés obert
    This paper presents an approach to calculate dispersion curves for homogeneous and isotropic plates subject to stress, via Semi-Analytical Finite Element and the Effective Elastic Constants, since stresses in the waveguide ...
  • A robust asynchronous sampled-data control design for nonlinear systems with actuator failures 

    Acho Zuppa, Leonardo; Buenestado Caballero, Pablo (Multidisciplinary Digital Publishing Institute, 2017-08-26)
    Article
    Accés obert
    This paper presents a recent self-sampled-data control algorithm applied to nonlinear systems with actuator failures. Our approach uses the linear model of a given nonlinear system, and based on a granted actuator fault ...
  • Ensemble learning as approach for pipeline condition assessment 

    Camacho-Navarro, Jhonatan; Ruiz Ordóñez, Magda; Villamizar Mejía, Rodolfo; Mujica Delgado, Luis Eduardo; Moreno Beltran, Gustavo Adolfo (Institute of Physics (IOP), 2017)
    Article
    Accés obert
    The algorithms commonly used for damage condition monitoring present several drawbacks related to unbalanced data, optimal training requirements, low capability to manage feature diversity and low tolerance to errors. In ...
  • Damages detection in cylindrical metallic specimens by means of statistical baseline models and updated daily temperature profiles 

    Villamizar Mejía, Rodolfo; Mujica Delgado, Luis Eduardo; Ruiz Ordóñez, Magda; Camacho-Navarro, Jhonatan; Moreno Beltran, Gustavo Adolfo (Institute of Physics (IOP), 2017)
    Article
    Accés obert
    In previous works, damage detection of metallic specimens exposed to temperature changes has been achieved by using a statistical baseline model based on Principal Component Analysis (PCA), piezodiagnostics principle and ...
  • Use of wiris quizzes in an online calculus course 

    Calm, Remei; Masià, Ramon; Olivé, Carme; Parés Mariné, Núria; Pozo Montero, Francesc; Ripoll, Jordi; Sancho Vinuesa, Teresa (Omnia Publisher SL (OmniaScience), 2017)
    Article
    Accés obert
    Calculus courses often present a large number of difficulties to undergraduate students of scientific studies, especially in engineering degrees. These difficulties are sometimes related to teaching and assessment strategies. ...
  • Wind turbine synchronous reset pitch control 

    Vidal Seguí, Yolanda; Acho Zuppa, Leonardo; Cifre Font, Ignasi; Garcia Manzanera, Àlex; Pozo Montero, Francesc; Rodellar Benedé, José (2017-06-01)
    Article
    Accés obert
    Reset controllers are commonly used to smooth the transient response of systems. We use this technique to improve a standard baseline pitch controller for offshore wind turbines (WTs). The introduction of this strategy ...
  • Distributed piezoelectric sensor system for damage identification in structures subjected to temperature changes 

    Vitola Oyaga, Jaime; Pozo Montero, Francesc; Tibaduiza Burgos, Diego Alexander; Anaya Vejar, Maribel (2017-05-31)
    Article
    Accés obert
    Structural health monitoring (SHM) is a very important area in a wide spectrum of fields and engineering applications. With an SHM system, it is possible to reduce the number of non-necessary inspection tasks, the associated ...

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