F-1022 支持部にガタを有する管のカオス振動現象と磨耗(G10-2 振動解析・非線形)(G10 機械力学・計測制御部門一般講演)

概要

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As for the heat exchange machine related to energy in thermal power plants, nuclear power plants and so on, the structures with gaps are adopted due to avoiding the heat expansion damage at supports of tubes in which a fluid pass through as a heat exchange medium. Flow-induced vibrations of heat exchanger tubes are recognized as a serious problem that lead to tube damage through fretting wear. This paper presents the numerical simulation concerning the vibration behavior of cantilever beam with the collision at a gap and the fretting wear due to contact at a support when the harmonic force applies on the beam. Morover, we consider vibration behavior including the chaotic phenomenon, and the fretting wear volume.
一般社団法人日本機械学会の論文
2001-08-22