Vibration sensitive behaviour of a connecting angle. Case of coupled beams and plates

摘要: In this paper semi-infinite one- and two-dimensional (1-D 2-D) coupled structures are considered in order to find conditions under which coupling effects can induce hypersensitive vibrating behaviour. The approach is based on classical wave decomposition, the first point show that high sensitivity exist such simple systems. Then, for case of beams, it shown two critical angles be defined, their values depend only number ratio. A similar study then performed plates, existence a angle shown. Its value determined using three structural parameters. results finally compared finite structures.