流体せん断流れを伴って拘束空間内を軸方向に移動するウェブの動的安定性解析 : 有限拘束空間内を移動するウェブの場合(機械力学,計測,自動制御)

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This paper deals with a theoretical stability analysis of an axially moving web with shear fluid flow in a fluid-filled narrow space. In the stability analysis, the basic equations of fluid flow around the moving web are based on the Navier-Sokes equations integrated over the gap width between the moving web surface and side wall. The structural vibration equation of the moving web in the transverse motion is based on the Kirchhoff-Love's thin-plate model. From these basic equations, the equations of fluid-structure coupling motion are obtained. The characteristic equation of the system is derived as a function of the axially moving speed of the web. As a result, the analytical results show that divergence and flutter type instabilities occur in the axially moving web due to the shear fluid flow with increasing the web speed. Moreover the analytical results clarify the regions of these two types of instability.
社団法人日本機械学会の論文
2001-12-25