Ponències/Comunicacions de congressos: Enviaments recents

Ara es mostren els items 25-36 de 79

    • 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)
      Text en actes de congrés
      Accés obert
      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. ...

    • Efficient Two-Body Approximations of Impulsive Transfers between Halo Orbits 

      Fantino, Elena; Flores Le Roux, Roberto Maurice; Al-Khateeb, Ashraf (International Astronautical Federation, 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This contribution presents an efficient method to compute direct transfers between Halo orbits from two circular restricted three-body problems. Owing to the remarkable impulse given over the past two decades to the plans ...

    • Shaking table testing on seismic pounding of a RC building structure 

      Kharazian, Alireza; López Almansa, Francisco; Benavent Climent, Amadeo; Gallego Molina, Antolino (Universidad Politécnica de Madrid (UPM), 2018)
      Text en actes de congrés
      Accés obert
      This paper describes unidirectional shaking table tests on seismic pounding of a 3-D RC building structure. Two inputs were considered: a seismic accelerogram and a harmonic wave. The tested specimen is a one-and-a-half-story ...

    • Diseño sísmico de edificios de acero: algoritmos genéticos vs enjambre de partículas 

      Barraza, Manuel; Bojórquez Mora, Edén; Fernández González, Eduardo; López Almansa, Francisco (Sociedad Mexicana de Ingeniería Sísmica, 2017)
      Comunicació de congrés
      Accés obert
      El objetivo de este estudio es comparar el uso de Algoritmos genéticos (AGs) y Optimización por Enjambre de Partículas (PSO, por sus siglas en ingles) en la optimización multi-objetivo de estructuras de acero sometidas a ...

    • Multi-objective design optimisation of stamping process for advanced high strength steels 

      Lee, Dong Seop; Pons Prats, Jordi; Espinoza Román, Héctor Gabriel; Fruitós Bickham, Óscar Alejandro; Oñate Ibáñez de Navarra, Eugenio (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The paper investigates the multi-objective design optimisation of stamping process to control both the shape and quality of final Advanced High Strength Steels (AHSSs) in terms of springback and safety using Distributed ...

    • Robust active shock control bump design optimisation using parallel hybrid-MOGA 

      Lee, Dong Seop; Bugeda Castelltort, Gabriel; Periaux, Jacques Francis; Oñate Ibáñez de Navarra, Eugenio (2011)
      Text en actes de congrés
      Accés obert
      The paper investigates a robust optimisation for detail design of active shock control bump on a transonic Natural Laminar Flow (NLF) aerofoil using a Multi-Objective Evolutionary Algorithm (MOEA) coupled to Computational ...

    • Parallel adaptive mesh refinement for incompressible flow problems 

      Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio; Lafontaine, Nelson Maireni; Idelsohn Barg, Sergio Rodolfo (2011)
      Text en actes de congrés
      Accés obert
      We present an algorithm for the solution of the incompressible Navier- Stokes equations combined with local refinement of the mesh based on an error estimation. Our solution strategy is based on well-established CFD ...

    • Stochastic and robust design procedures applied to the optimization with uncertainties 

      Pons Prats, Jordi; Bugeda Castelltort, Gabriel; Zárate Araiza, José Francisco; Oñate Ibáñez de Navarra, Eugenio (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Engineers agree with the fact that uncertainty is an important issue to get a better model of real behavior. Uncertainty quantification techniques have been largely developed during the recent years; Stochastic and ...

    • Multi-objective high lift systems design optimisation using hybridised evolutionary algorithm with Nash-game 

      Lee, Dong Seop; Periaux, Jacques Francis; Bugeda Castelltort, Gabriel; Oñate Ibáñez de Navarra, Eugenio (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper investigates the High Lift System (HLS) application of complex aerodynamic design problem using Genetic Algorithms (GAs) coupled to Game strategies. Two types of optimization methods are used; the first method ...

    • Nueva tecnología de construcción mixta ligera acero-madera para edificios sismo-resistentes 

      Segués Aguasca, Edgar; Rodríguez Cantalapiedra, Inma; López Almansa, Francisco (Publicaciones EPSEB, 2017)
      Text en actes de congrés
      Accés obert
      Este trabajo describe una nueva técnica de construcción mixta de madera y acero. Esta solución constructiva está destinada principalmente a proporcionar alta resistencia lateral y rigidez, cualidades útiles para resistir ...

    • Reduction environmental effects of civil aircraft through multi-objective flight plan optimisation 

      Lee, Dong Seop; Gonzalez, Luis Felipe; Walker, R.; Periaux, Jacques Francis; Oñate Ibáñez de Navarra, Eugenio (Institute of Physics (IOP), 2010)
      Text en actes de congrés
      Accés obert
      With rising environmental alarm, the reduction of critical aircraft emissions including carbon dioxides (CO2) and nitrogen oxides (NOx) is one of most important aeronautical problems. There can be many possible attempts ...

    • Shock control bump design optimization on natural laminar aerofoil 

      Lee, Dong Seop; Periaux, Jacques Francis; Srinivas, K.; Gonzalez, Luis Felipe; Qin, Ning; Oñate Ibáñez de Navarra, Eugenio (Springer, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The chapter investigates Shock Control Bumps (SCB) on a Natural Laminar Flow (NLF) aerofoil; RAE 5243 for Active Flow Control (AFC). A SCB approach is used to decelerate supersonic flow on the suction/pressure sides of ...