Now showing items 1-20 of 21

    • A meshless finite point method for three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2013-10)
      Article
      Open Access
      A finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ...
    • A simulation tool for parachute/payload systems 

      Flores Le Roux, Roberto Maurice; Ortega, Enrique; Vallés Fluvià, J.; Oñate Ibáñez de Navarra, Eugenio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Conference report
      Restricted access - publisher's policy
      The design and evaluation of parachute-payload systems is a technology field in which numerical analysis tools can make very important contributions. This work describes a new development from CIMNE in this area, a coupled ...
    • A transonic potential solver with an embedded wake approach using multivalued finite elements 

      López Canalejo, Iñigo; Baez Jones, Eloisa; Núñez Corbacho, Marc; Zorrilla Martínez, Rubén; Rossi, Riccardo; Bletzinger, Kai Uwe; Wüchner, Roland (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
      Conference lecture
      Open Access
      A potential transonic solver with an embedded wake is presented. The flow outside of attached boundary layers of streamlined bodies flying at high Reynold numbers can be assumed to be irrotational and isentropic. This ...
    • Aeroelastic study of the flutter conditions of an aircraft wing 

      Adroher Bolla, Guillermo (Universitat Politècnica de Catalunya, 2022-07-18)
      Bachelor thesis
      Open Access
      Aircraft wings are the responsible for planes to fly, they are the main structures providing lift so that the gravity is overcome. Therefore, one must ensure that instabilities do not appear because they can lead to fatal ...
    • Análisis aeroelástico de chimeneas de acero utilizando elementos no-lineales de lámina sin rotación 

      Valdés, Jesús G.; Hernández, Hugo; Hernández, Alejandro (Universitat Politècnica de Catalunya. CIMNE, 2010)
      Article
      Open Access
      En este trabajo proponemos el análisis de chimeneas utilizando interacción fluido-estructura como alternativa a los clásicos procedimientos internacionales bien reglamentados por diferentes países. Para lograr un análisis ...
    • Determination of flutter derivatives of bridge sections based on wind tunnel experiments under forced excitation 

      Fontecha González, Robert (Universitat Politècnica de Catalunya, 2012-01-26)
      Minor thesis
      Open Access
      [ANGLÈS] In the last centuries new technologies and structural knowledge have made possible the construction of filigree structures, which economize the required material quantities by taking material capacity to its limits. ...
    • Efficient aeroelastic analysis of inflatable structures using enhanced potential flow aerodynamics 

      Ortega, Enrique; Flores Le Roux, Roberto Maurice; Cuartero Zaragoza, Eric; Oñate Ibáñez de Navarra, Eugenio (2019-10)
      Article
      Open Access
      An efficient method for the aeroelastic analysis of wind effects on inflatable structures is presented. The solution scheme is staggered and uses an explicit finite-element structural solver and potential flow aerodynamics. ...
    • Efficient aeroelastic analysis of wind loads on inflatable hangars 

      Flores Le Roux, Roberto Maurice; Ortega, Enrique (International Centre for Numerical Methods in Engineering (CIMNE), 2019)
      Conference report
      Open Access
      Wind loads play a crucial role in inflatable structures. Unfortunately, design loads from safety regulations grossly overestimate the real aerodynamic forces. Thus, a more accurate estimation of wind loads is desirable. ...
    • Engenharia do vento computacional e suas aplicações na engenharia civil. Análise aerodinâmica e aeroelástica 

      Awruch, A.M.; Braun, A.L.; Greco, M. (Universitat Politècnica de Catalunya. CIMNE, 2015)
      Article
      Open Access
      Procedimentos experimentais em túneis de vento têm sido tradicionalmente empregados como uma ferramenta fundamental para avaliação dos efeitos aerodinâmicos e aeroelásticos causados pela ação do vento sobre estruturas ...
    • Ensayos de flameo: procedimientos y herramientas de análisis modal 

      Barros Rodríguez, José; Flores Le Roux, Roberto Maurice (Fundación Rogelio Segovia para el Desarrollo de las Telecomunicaciones (Fundetel), 2013)
      Conference lecture
      Restricted access - publisher's policy
      El flameo es un fenómeno vibratorio que puede llevar a la destrucción de una aeronave en vuelo. Los ensayos en vuelo de flameo, dentro del proceso de integración de Armamento en Plataformas Aéreas, tienen por objeto ...
    • Estudi d'elements hipersustentadors. Flaps i Slats 

      Mestres Sánchez, Hèctor (Universitat Politècnica de Catalunya, 2021-05-19)
      Bachelor thesis
      Open Access
      L’objectiu principal d’aquest treball és estudiar dos elements hipersustentadors coneguts com a flap, més en concret el bàsic, situat al final del perfil alar, i el slat amb ranura slot situat al començament del perfil. ...
    • Failure investigation of a solar tracker due to wind-induced torsional galloping 

      Valentín Ruiz, David; Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica; Presas Batlló, Alexandre (Elsevier, 2022-05-01)
      Article
      Open Access
      Solar power installations are increasing every year due to the decarbonization policy established around the world. Photovoltaic (PV) systems and specifically one-axis solar trackers are the most used type of installations ...
    • Fluid structure interaction using reduced order modeling: a first approach 

      Tello Guerra, Alexis (Universitat Politècnica de Catalunya, 2014)
      Master thesis
      Open Access
    • Fluid-structure interaction of NASA High Speed Common Research Model 

      Hueso Carro, Adrià (Universitat Politècnica de Catalunya, 2022-10-11)
      Master thesis
      Open Access
      Covenantee:   Chalmers tekniska högskola
      In recent years, the computational study of fluid-structure interaction has become increasingly important. This is due to the increased demand for more efficient aircraft designs without compromising the integrity of the ...
    • Frequency and damping identification in flutter flight testing using singular value decomposition and QR factorization 

      Barros, Jose; Flores Le Roux, Roberto Maurice; Lopez-Díez, Jesus; Martinez-Val, Rodrigo (2015-02)
      Article
      Open Access
      A new method, based on singular value decomposition and QR factorization, has been developed and applied to the analysis of F-18 flutter flight test data. The method is capable of identifying the frequency and damping of ...
    • Non-linear aeroelastic analysis of slender wings accounting for large deformations 

      Escalera Mora, Erik (Universitat Politècnica de Catalunya, 2021-06)
      Master thesis
      Open Access
      This thesis aims to develop a geometrically non-linear aeroelastic analysis for flutter prediction of flexible wings under large displacements. The novel Pazy Wing benchmark model proposed within the AePW3 (Third Aeroelastic ...
    • Numerical wind tunnel for aerodynamic and aeroelastic characterization of bridge deck sections 

      Scotta, Roberto; Lazzari, Massimiliano; Stecca, Enrico; Cotela Dalmau, Jordi; Rossi, Riccardo (2016-04)
      Article
      Restricted access - publisher's policy
      The aim of the present study is to propose a reliable engineering procedure to analyze bridges subjected to wind loads by-passing the expensive wind tunnel tests thanks to numerical simulations. These exploit Kratos, a ...
    • Optimisation of Controlled Aeroelastic Systems 

      Artola i Magrans, Marc (Universitat Politècnica de Catalunya, 2018-06-20)
      Master thesis
      Restricted access - author's decision
      This project presents and investigates a methodology for the optimisation of control systemsand structural parameters of aeroelastic systems, which enables a rapid acquisition of designcriteria with low computational ...
    • Study of aerolastic behavior of a wing using reduced-order modeling and domain decomposition 

      Solergibert Trave, Oriol (Universitat Politècnica de Catalunya, 2018-06-10)
      Bachelor thesis
      Restricted access - author's decision
      Engineering evolution has been accompanied by an increase in the computational cost to address complex structural problems in a precise manner. To alleviate costs, it was sought to develop a method based on the finite ...
    • Unveiling modal parameters with forced response using SVD and QR during flutter flight testing 

      Barros Rodriguez, José; Fernandez Fructuoso, José Miguel; Flores Le Roux, Roberto Maurice; Sanchez Prieto, Sebastián; Rodríguez Polo, Oscar (2018-01-01)
      Article
      Open Access
      This article presents an algorithm for the identification of modal parameters during flutter flight testing when forced excitation is employed and the aircraft possesses several sensors for structural response acquisition. ...