Recursos de colección

ORBi Open Repository and Bibliography (327.254 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 81 - 95 de 95

  1. Experimental Modal Identification of Mistuning in an Academic Blisk and Comparison With The Blades Geometry Variations

    Nyssen, Florence; Arnst, Maarten; Golinval, Jean-Claude
    Peer reviewed

  2. Experimental Modal Identification of Mistuning in an Academic Blisk and Comparison With The Blades Geometry Variations

    Nyssen, Florence; Arnst, Maarten; Golinval, Jean-Claude
    Peer reviewed

  3. Importance of structural damping in the dynamic analysis of compliant deployable structures

    Dewalque, Florence; Rochus, Pierre; Bruls, Olivier
    Compliant mechanisms such as tape springs are often used on satellites to deploy appendices, e.g. solar panels, antennas, telescopes and solar sails. Their main advantage comes from the fact that their motion results from the elastic deformation of structural components, unlike usual hinges or prismatic joints, the motion of which is dictated by contact surfaces. No actuators or external energy sources are required and the deployment is purely passive, which appears as a decisive feature for the design of low-cost missions with small satellites or cubesats. The mechanical behaviour of a tape spring is intrinsically complex and nonlinear involving buckling,...

  4. Satellite Communications

    Van Droogenbroeck, Marc
    Introduction to satellite communications.

  5. Study of Dynamic Impact Behaviors and Ballistic Properties of Hybrid Composites

    Guo, Yingnan; Sun, Qin; Wu, Ling
    Peer reviewed

  6. Diffusion des inconnues hyperstatiques dans les voilures à longerons couplés

    Fraeijs de Veubeke, Baudouin
    This paper contains a first set of applications of the variational principles of elasticity to aeronautical structures.

  7. An equilibrium model for plate bending

    Fraeijs de Veubeke, Baudouin; Sander, Guy
    Peer reviewed

  8. Diffusive equilibrium elements

    Fraeijs de Veubeke, Baudouin
    Equiliobrium models are characterized by an internal stress field in equilibrium and surface tractions that should obey the diffusivity requirement of reciprocity with adjacent elements at the interfaces. Thepaper discusses the construction of stiffness matices for such elements and the difficulties associated with the presence of mechanisms. The use of first order or second order stress functions is presented together with the possibility of solving the final equations by the force method through a direct flexibility method. Three methods are presented for getting rid of thre machanisms: the classical superelement technique, a method based on the discretization of rotational equilibrium...

  9. Variational Principles and the patch test

    Fraeijs de Veubeke, Baudouin
    Peer reviewed

  10. Variational principles in fluid mechanics

    Fraeijs de Veubeke, Baudouin
    Peer reviewed

  11. A new variational principle for finite elastic displacements

    Fraeijs de Veubeke, Baudouin
    Peer reviewed

  12. A conforming finite element for plate bending

    Fraeijs de Veubeke, Baudouin
    Peer reviewed

  13. Displacement and equilibrium models in the finite element method

    Fraeijs de Veubeke, Baudouin
    A capital contribution to the finite element method, including for the first time equilibrium models, dual analysis, the quadratic displacement element, a discussion of mixed formilation, and the limitation principle.

  14. Sur certaines inégalités fondamentales et leur généralisation dans la théorie des bornes supérieures et inférieures en élasticité

    Fraeijs de Veubeke, Baudouin
    In this paper, the bases of the celebrated dual analysis are given for the first time.

  15. Efficient Implicit Schemes for Finite Element Impact Simulation

    Ponthot, Jean-Philippe; Graillet, Denis
    Peer reviewed

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