Vibration sensitive behavior to connecting angle. Case of coupled beams and plates
Résumé
In this paper one consider semi-infinite 1D and 2D coupled structures in order to find conditions under which coupling effects can induce hypersensitive vibrating behavior. The approach is based on classical wave decomposition, and the first point is to show that high sensitivity can exist in such simple systems. Then, for the beams case, it is shown that two critical coupling angles can be defined, and that their values depend only on waves numbers ratio. A similar study is then performed on semi-infinite coupled plates, and existence of critical coupling angle is shown. Its value can be determined using three structural parameters. Results are finally compared to finite coupled structures.
Domaines
Vibrations [physics.class-ph]
Origine : Fichiers produits par l'(les) auteur(s)