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Browsing by Subject "flow-induced vibration"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Vibrations of steel pipes and flexible hoses induced by periodically variable fluid flow
    (2012) Czerwiński, Andrzej; Łuczko, Jan
    This paper is concerned with the analysis of a model describing the vibrations of simply supported straight pipes conveying periodically pulsating fluid. The vibrations of the hydraulic system are described by a fourth-order partial differential equation, with the inclusion of geometrical non-linearities. Through the application of the Galerkin method, the non-linear problem is reduced to the solution of four ordinary differential equations. The influence of several significant parameters of the model on the rms value of velocity is investigated. The possibility of exciting sub-harmonic and chaotic excitations at certain intervals of excitation frequency and flow velocity is presented.