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ORBi Open Repository and Bibliography (304.334 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Engineering, computing & technology => Aerospace & aeronautics engineering

Mostrando recursos 1 - 20 de 39

  1. Improving CFD prediction of drag on Paralympic tandem athletes: influence of grid resolution and turbulence model

    Mannion, Paul; Toparlar, Yasin; Blocken, Bert; Hajdukiewicz, Magdalena; Andrianne, Thomas; Clifford
    Peer reviewed

  2. Improving CFD prediction of drag on Paralympic tandem athletes: influence of grid resolution and turbulence model

    Mannion, Paul; Toparlar, Yasin; Blocken, Bert; Hajdukiewicz, Magdalena; Andrianne, Thomas; Clifford
    Peer reviewed

  3. Energy harvesting from different aeroelastic instabilities of a square cylinder

    Andrianne, Thomas; Aryoputro, Renar; Laurent, Philippe; Colson, Gérald; Amandolèse, Xavier; Hémon, Pascal
    Peer reviewed

  4. Energy harvesting from different aeroelastic instabilities of a square cylinder

    Andrianne, Thomas; Aryoputro, Renar; Laurent, Philippe; Colson, Gérald; Amandolèse, Xavier; Hémon, Pascal
    Peer reviewed

  5. Etude des pertes d'alliage de Platine-Rhodium utilisé dans les filières de fabrication des fibres de verre

    Reginster, Sylvie

  6. Etude des pertes d'alliage de Platine-Rhodium utilisé dans les filières de fabrication des fibres de verre

    Reginster, Sylvie

  7. DETERMINATION OF THE LOAD BEARING CAPACITY OF COMPOSITE FLANGES FOR AIRCRAFT ENGINE CASING APPLICATION: GENERAL METHODOLOGY AND DESIGN OF TESTING DEVICES SUPPORTED BY SIMULATION

    Bruyneel, Michaël
    Peer reviewed

  8. PFEM-FEM coupling for fluid-structure interaction problems involving free surfaces and large solid deformations

    Cerquaglia, Marco Lucio; Boman, Romain; Deliège, Geoffrey; Papeleux, Luc; Ponthot, Jean-Philippe
    The present work focuses on the solution of fluid-structure interaction problems involving free surfaces and deformable structures. Free-surface flows are often encountered in reality, but the numerical solution of such problems remains a challenge, especially when the flow interacts with some flexible structure. The Particle Finite Element Method (PFEM) is nowadays a well-established Lagrangian method for the study of free-surface flows. The key feature of this method is the continuous remeshing of the computational domain through an efficient Delaunay triangulation, based on which the equations are solved using classical Finite Elements. In this work, the PFEM is coupled to Metafor, an in-house...

  9. A Modal Frequency-Domain Generalised Force Matrix for the Unsteady Vortex Lattice Method

    Dimitriadis, Grigorios; Giannelis, N. F.; Vio, G. A.
    Peer reviewed

  10. A Modal Frequency-Domain Generalised Force Matrix for the Unsteady Vortex Lattice Method

    Dimitriadis, Grigorios; Giannelis, N. F.; Vio, G. A.
    Peer reviewed

  11. Fatigue resistant designs using stress-based topology optimization

    Collet, Maxime; Bauduin, Simon; Fernandez Sanchez, Eduardo Felipe; Duysinx, Pierre
    Fatigue is an important mode of failure in mechanical engineering and accounting for it as soon as the early stage of design using topology optimization sounds primordial. Structures undergoing high-cycle fatigue can be described by the stress-based approach and then a stress-based topology optimization framework, which has received great interest since almost 20 years because of the innovative designs that can be achieved to answer strength requirements, can be used. Literature reports many good results for shape optimization [Mrzyglod & Zielinsky(2006)] whereas in the eld of topology optimization several authors have shown that considering fatigue in an optimization framework leads to more relevant solutions where fluctuating loads are...

  12. Topology optimization of mechanical components fabricated by additive manufacturing for a Shell Eco Marathon vehicle

    Alarcon Soto, Pablo
    Since 2004, a team of students and researchers of University of Liege takes part to the Shell Eco Marathon race with a lightweight electric vehicle. The goal of this pedagogical project is to design, fabricate and operate a vehicle exhibiting the least energy consumption. A key factor to reduce the energy consumption is to minimize the vehicle mass. Besides the body structure made of CRFP, engineers have also to focus on the weight reduction of any mechanical parts of the powertrain, transmission and of rolling gear. The combination of topology optimization with additive manufacturing techniques allows to propose innovative designs exhibiting...

  13. Fatigue resistant designs using stress-based topology optimization

    Collet, Maxime; Bauduin, Simon; Fernandez Sanchez, Eduardo Felipe; Duysinx, Pierre
    Stress based topology optimization has received great interest since almost 20 years because of the innovative designs that can be achieved to answer strength requirements. Fatigue is an important mode of failure in mechanical engineering and accounting for it as soon as the early stage of design using topology optimization sounds primordial. Literature reports many good results for shape optimization [Mrzyglod & Zielinsky(2006)] whereas in the field of topology optimization several authors have shown that considering fatigue in an optimization framework leads to more relevant solutions where fluctuating loads are involved [Holmberg E.(2015), Collet et al(2016), Svärd(2015)]. In order to check...

  14. Feasibility study of a UV photometer on-board a 3 CubeSat for the study of bright massive stars

    Desselle, Richard; Kintziger, Christian; Rauw, Grégor; Rochus, Pierre
    Following the amazing progresses in miniaturizing essential components of spacecraft, the last decade has witnessed an important development of nano- and micro-satellites. Beyond the mere technological experiment, these small satellites are now considered as important complements of much larger and more sophisticated probes to do scientific research. In this context we are conducting a feasibility study of a UV photometer on-board a 3U CubeSat. The scientific purpose of this payload will be to collect time series of photometric measurements of bright massive stars. These massive stars are very hot and luminous objects emitting copious amounts of UV radiation. The properties of...

  15. Feasibility study of a UV Photometer on-board a 3U Cubesat for the study of bright massive stars

    Desselle, Richard
    Feasibility study of a UV Photometer on-board a 3U Cubesat for the study of bright massive stars

  16. Experimental and numerical investigation of the nonlinear dynamics of compliant mechanisms for deployable structures

    Dewalque, Florence; Schwartz, Cédric; Denoël, Vincent; Croisier, Jean-Louis; FORTHOMME, Bénédicte; Bruls, Olivier
    Peer reviewed

  17. Experimental and numerical investigation of the nonlinear dynamics of compliant mechanisms for deployable structures

    Dewalque, Florence; Schwartz, Cédric; Denoël, Vincent; Croisier, Jean-Louis; FORTHOMME, Bénédicte; Bruls, Olivier
    Peer reviewed

  18. Numerical and Experimental Study of Bluff Body Aerodynamics

    Guissart, Amandine
    This thesis investigates the dynamics of detached flows around bluff bodies and the resulting aerodynamic loads, which are of primary importance in wind engineering. Two canonical geometries are considered: a 4:1 rectangular cylinder and a flat plate that is either fixed at large incidence or undergoing a large pitching motion. The different studies are conducted through both experimental measurements and numerical simulations. Their results are compared by using Proper Orthogonal Decomposition and Dynamic Mode Decomposition. The flow around the 4:1 rectangular cylinder is studied through dynamic pressure measurements along a cross-section combined with Unsteady Reynolds-Averaged Navier-Stokes (RANS) and Delayed-Detached Eddy Simulation (DDES) results. The main...

  19. Nonlinear analysis of compliant deployable structures: modelling, simulation and experimental validation

    Dewalque, Florence
    Compliant mechanisms are flexible components which can store elastic energy when deformed and then passively release it to produce a motion. Their scope of applications encompasses various domains from robotic orthoses to microscopes and grippers. In this work, the developments focus on compliant mechanisms called tape springs used in deployable space structures. Tape springs, due to their autonomous deployment capacity from a compact folded configuration, their high stiffness in the deployed equilibrium state and their simplicity of integration, represent efficient alternatives to common motorised hinges for space applications. Thus, they are currently used to deploy appendices on satellites such as solar...

  20. Nonlinear analysis of compliant deployable structures: modelling, simulation and experimental validation

    Dewalque, Florence
    Compliant mechanisms are flexible components which can store elastic energy when deformed and then passively release it to produce a motion. Their scope of applications encompasses various domains from robotic orthoses to microscopes and grippers. In this work, the developments focus on compliant mechanisms called tape springs used in deployable space structures. Tape springs, due to their autonomous deployment capacity from a compact folded configuration, their high stiffness in the deployed equilibrium state and their simplicity of integration, represent efficient alternatives to common motorised hinges for space applications. Thus, they are currently used to deploy appendices on satellites such as solar...

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