[en] This thesis is devoted to the finite element analysis of hydro-elastic vibrations arising in launchers. It sets a general formulation generalizing Tong's one by a logical step in a lagrangian point of view. A specialized solution algorithm is presented. As launchers are axisymmetric structures, a general theory of axisymmetric structures with cosinusoidal modes is presented, including shells, volumes, and incompressible structures. The problem of setting the ccorrest limiting conditions on the axis is treated. Special pressure terms are also treated.
Research center :
LTAS, Université de Liège
Disciplines :
Mechanical engineering
Author, co-author :
Debongnie, Jean-François ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Méthodes de fabrication
Language :
French
Title :
Modélisation de problèmes hydroélastiques par éléments finis. Application aux lanceurs aérospatiaux
Alternative titles :
[en] Modelling hydro-elastic problems by finite elements. Application to aerospace launchers.