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Ara es mostren els items 39-58 de 159

    • Characterization, modeling and assessment of Roll-N-Cage isolator using the cable-stayed bridge benchmark 

      Abdel Kareem Moustafa, Mohamed Ismail; Rodellar Benedé, José; Carusone, Gennaro; Domaneschi, Marco; Martinelli, Luca (2013-03)
      Article
      Accés restringit per política de l'editorial
      This paper presents the results of an extensive series of simulation tests to identify the mechanical characteristics of an innovative isolation device known as the Roll-N-Cage (RNC) isolator. The seismic performance of ...

    • Combined and I indices based on principal component analysis for damage detection and localization 

      Tibaduiza Burgos, Diego Alexander; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José (2011)
      Text en actes de congrés
      Accés obert
      In this paper, two indices (combined or phi index and I index), different to the presented in [1][2][3] are used to detect damages; these indices are calculated from the information obtained from the projection of the ...

    • Comparison of several methods for damage localization using indices and contributions based on PCA 

      Tibaduiza Burgos, Diego Alexander; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José (2011-07-19)
      Article
      Accés restringit per política de l'editorial
      In previous works by the authors, it was shown the advantages of applying an active piezoelectric system in combination with Principal Component Analysis and Neural Networks as methodology for damage detection in ...

    • Comparison of two robust PCA methods for damage detection in the presence of outliers 

      Gharibnezhad, Fahit; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José (2011-07-19)
      Article
      Accés restringit per política de l'editorial
      Statistical methods such as Principal Component Analysis (PCA) are suffering from contaminated data. For instance, variance and covariance as vital parts of PCA method are sensitive to anomalous observation called outliers. ...

    • Complementary matrices in the inclusion principle for dynamic controllers 

      Bakule, Lubomir; Rodellar Benedé, José; Rossell Garriga, Josep Maria (2003-06)
      Article
      Accés obert
      A generalized structure of complementary matrices involved in the input-state-output Inclusion Principle for linear time-invariant systems (LTI) including contractibility conditions for static state feedback controllers ...

    • Comportamiento sísmico de edificios con un sistema no lineal de control híbrido 

      Barbat Barbat, Horia Alejandro; Rodellar Benedé, José; Ryan, Eugene P.; Molinares, Nelson (1993-06-15)
      Article
      Accés obert
      En el artículo se propone una clase de sistema hi33rido de control antisísmico de edificios que combina un sistema pasivo de aislamiento de base con comportamiento no lineal con uno, activo. La componente pasiva del sistema ...

    • Comportamiento sísmico de edificios con un sistema no linel de control híbrido 

      Rodellar Benedé, José; Barbat Barbat, Horia Alejandro; Ryan, Eugene P.; Molinares, N. (1993)
      Article
      Accés obert
      En el artículo se propone una clase de sistema hi33rido de control antisísmico de edificios que combina un sistema pasivo de aislamiento de base con comportamiento no lineal con uno , activo. La componente pasiva del sistema ...

    • Considering temperature effect on robust principal component analysis orthogonal distance as a damage detector 

      Mujica Delgado, Luis Eduardo; Gharibnezhad, Fahit; Rodellar Benedé, José; Todd, Michael (2019-01-01)
      Article
      Accés obert
      In previous works, the authors have shown the feasibility of using classical and robust principal component analysis for damage detection on structures when ultrasonic guided waves are used. It has also been demonstrated ...

    • Contractibility of dynamic LTI controllers using complementary matrices 

      Bakule, Lubomir; Rodellar Benedé, José; Rossell Garriga, Josep Maria (2003-07)
      Article
      Accés obert
      A generalized structure of complementary matrices involved in the input-state-output inclusion principle for linear time-invariant systems including contractibility conditions for static state feedback controllers is well ...

    • Control activo de estructuras con aislamiento de base 

      López, Francisco; Inaudi, José; Rodellar Benedé, José (Centro Internacional de Métodos Numéricos en Ingeniería, 1992)
      Article
      Accés obert
      En este artículo se propone un sistema de control activo como protección antisismica suplementaria para edificios con aislamiento de base y se analiza su viabilidad de forma numérica. Se considera una única fuerza de control ...

    • Control activo no lineal de edificios con aislamiento de base 

      Barbat Barbat, Horia Alejandro; Molinares, N.; Rodellar Benedé, José (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 1994)
      Llibre
      Accés obert
      Se consideran edificios con sistema de aislamiento histerético y friccional, se desarrollan sus ecuaciones del movimiento y se describen procedimientos de cálculo numérico de la respuesta del sistema aislado. A continuación ...

    • Control digital predictivo de la respuesta sísmica de estructuras 

      Rodellar Benedé, José; Barbat Barbat, Horia Alejandro (1985)
      Article
      Accés obert
      En este artículo se desarrolla un controlador digital predictivo con aplicación en la reducción de la respuesta sísmica de estructuras. Su eficacia se comprueba controlando la respuesta de un modelo de reactor nuclear.

    • Control of base-isolated systems using force feedback 

      Pozo Montero, Francesc; Rodriguez Tsouroukdissian, Arturo; Acho Zuppa, Leonardo; Vidal Seguí, Yolanda; Rodellar Benedé, José (2011)
      Text en actes de congrés
      Accés obert

    • Control predictivo en sistemas de protección sísmica de estructuras 

      Andrade, R; Rodellar Benedé, José; López Almansa, Francisco (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 1993)
      Llibre
      Accés obert
      En las últimas décadas se ha propuesto la aplicación de técnicas de control activo al campo de las estructuras flexibles sometidas a acciones sísmicas, lo que ha dado lugar a una nueva filosofía de diseño conocida como ...

    • Control strategies for large-scale structural systems: high-raise buildings and multi-building systems 

      Palacios Quiñonero, Francisco; Rodellar Benedé, José; Rossell Garriga, Josep Maria; Rubió Massegú, Josep (Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III (MA3), 2011)
      Text en actes de congrés
      Accés obert
      This work presents an overview of some recent developments made by the authors in the field of vibrational control of largescale structural systems subject to seismic excitations. The structural systems under consideration ...

    • Controllability-observability of expanded composite systems 

      Bakule, Lubomir; Rodellar Benedé, José; Rossell Garriga, Josep Maria (Elsevier, 2001-08-01)
      Article
      Accés obert
      The relation between original and expanded systems within the Inclusion Principle from the point of view of controllability–observability of both subsystems and composite systems is studied. It is proved that complementary ...

    • CSI algorithm: ‘Canal Survey Estimation’ to estimate the flow rate extracted from irrigation canals 

      Soler Guitart, Joan; Bonet Gil, Enrique; Gómez Valentín, Manuel; Rodellar Benedé, José (Edicions de la Universitat de Lleida (UdL), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The management of the water resources in a canal can be disturbed by the users, if the demand deliveries have been increased because a farmer obtained a greater flow than the scheduled delivery, the watermaster does not ...

    • Damage assessment in a stiffened composite panel using non-linear data-driven modelling and ultrasonic guided waves 

      Torres-Arredondo, Miguel Angel; Tibaduiza Burgos, Diego Alexander; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José; Fritzen, Claus-Peter (2013)
      Text en actes de congrés
      Accés obert
      Structural components made of composite materials are being used more often in aerospace and aeronautic structures due to their well-known properties such as high mass specific stiffness and strength. However, their ...

    • Damage detection in piping systems using pattern recognition techniques 

      Buethe, Inka; Torres-Arredondo, Miguel Angel; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José; Fritzen, Claus-Peter (2013)
      Text en actes de congrés
      Accés obert
      The interest in the propagation of ultrasound waves in pipe-like solid waveguides arises out of several areas of the structural health monitoring (SHM) community for the detection, localization and assessment of defects ...

    • Damage detection in the presence of outliers based on robust PCA 

      Gharibnezhad, Fahit; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José (2011)
      Text en actes de congrés
      Accés obert
      Identification of outliers in samples from univariate and multivariate populations has received considerable attention over the past few decades. Presence of outliers has undeniable effects on the results of statistical ...