Abstract
The evaluation methodologies for the flow-induced vibration instability of a long flexible beam due to an axial flow confined in a narrow passage have been reported. In this paper, by using this proposed analytical method, the parameter-studies are performed on the dynamic stability of elastic beam subjected to axial flow confined a narrow passage. The effects of support conditions of structures, structural damping, and fluid characteristics on the dynamic stability are clarified for safety dynamic design in industries. Especially, paying an attention on the vicinity of critical velocity, the effects as for stabilization and destabilization on flutter or divergence phenomena is investigated by changing fluid viscosity and structural damping.
