Fluid film effect on the motion of an externally excited loosely supported tubular structure - Archive ouverte HAL
Article Dans Une Revue Tribology International Année : 2024

Fluid film effect on the motion of an externally excited loosely supported tubular structure

Résumé

In nuclear power plants, water flows make loosely supported tubular structures impacting and sliding against their supports. These interactions lead to wear of components, generating potential safety problems and costs for maintenance. In this work, a simplified model is proposed to investigate the tube motion inside its cylindrical support. The model consists of an externally excited mass-spring-damper system, which can impact rigidly and elastically on a circular frame. The fluid film in the clearance is modelled as a squeeze film damper. The numerical results highlight that the water film can affect differently the mass motion. Depending on the excitation conditions, its motion can change only near to the support or globally. Moreover, it can avoid or increase the impacts number.
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Dates et versions

hal-04662371 , version 1 (25-07-2024)

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Citer

Matteo Delli Colli, Benyebka Bou-Saïd, Sylvie Descartes, Carole Falcand, Nabil Marouf, et al.. Fluid film effect on the motion of an externally excited loosely supported tubular structure. Tribology International, 2024, 197, ⟨10.1016/j.triboint.2024.109762⟩. ⟨hal-04662371⟩
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