262 狭い領域内で軸流を受ける弾性梁の限界流速近傍に与える流体粘性,構造減衰の安定化または不安定化(平行流による流体関連振動のメカニズムと計測制御,OS-22 流体関連振動・音響メカニズムと計測制御,総合テーマ「伝統を,未来へ!」)

概要

論文の詳細を見る
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.
一般社団法人日本機械学会の論文
2010-09-14