Reference : Vibrations asymétriques d'une coque de révolution autour d'un état d'équilibre thermo...
Reports : External report
Engineering, computing & technology : Aerospace & aeronautics engineering
Vibrations asymétriques d'une coque de révolution autour d'un état d'équilibre thermo-élastique
[en] Asymmetrical vibrations of a shell of revolution round a thermo-elastic equilibrium state
Debongnie, Jean-François mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Méthodes de fabrication >]
Huck, André [ > > ]
Mol, André [ > > ]
Idelsohn, Sergio mailto [ > > ]
Rapports LTAS
[en] shells of revolution ; Asymmetrical vibrations ; thermo-elastical equilibrium reference state
[en] This paper describes a theory of shells of revolution. Staring with geometrical considerations, the expression of the strains is deduced. A particular form of the displacement field is then chosen, from which follow the shell strains and changes of curvature. The equilibrium equations are then deduced from a variational point of view. Constitutive equations are then stated and simplified owing to the powers of the parameter h/R. The problem of vibrations round an equilibrium state is then formulated, including the so-called stability terms.Inertia terms are then developed. IN order to treat asymmetrical vibrations, a Fourier development of the displacements is introduced, which allows a clear separation of the eigenmodes.
Researchers ; Professionals
This is the theoretical work which led to the implementation of element 18 in SAMCEF

File(s) associated to this reference

Fulltext file(s):

Open access
VF22.pdfPublisher postprint914.06 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.