Nonlinear three-dimensional dynamics of flexible pipes conveying fluids
Authors:
- Jan Łuczko,
- Andrzej Czerwiński
Abstract
This paper presents a model which describes the non-planar vibrations of an elastic pipe induced by the pulsations of a flowing fluid. The motion of the pipe has been described by a set of four non-linear partial differential equations with periodically varying coefficients. The analysis has been conducted with the use of Galerkin method by applying functions describing the free vibrations of the beam as the shape functions. Floquet theory has been used to determine the unstable areas. The influence of the flow velocity and the pulsation frequency on the character and modes of vibrations and on the ranges of the increased vibration intensity has been examined. The possibility of the excitation of sub-harmonic and quasi-periodic vibrations in ranges of simple and combination parametric resonances has been proved. The results of experiments which confirm the occurrence of the parametric resonance phenomenon have also been presented.
- Record ID
- CUT5b62cb23728b494c8b64c27f3a6a10bb
- Publication categories
- ;
- Author
- Journal series
- Journal of Fluids and Structures, ISSN 0889-9746, e-ISSN 1095-8622
- Issue year
- 2017
- Vol
- 70
- Pages
- 235-260
- Other elements of collation
- rys.; wykr.; Bibliografia (na s.) - 260; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 70
- Keywords in English
- pipe conveying fluid, parametric resonance, flow-induced vibration, non-linear dynamics, 3D-motions, hydraulic systems
- DOI
- DOI:10.1016/j.jfluidstructs.2017.02.002 Opening in a new tab
- URL
- http://www.sciencedirect.com/science/article/pii/S0889974616304054 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 40
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT5b62cb23728b494c8b64c27f3a6a10bb/
- URN
urn:pkr-prod:CUT5b62cb23728b494c8b64c27f3a6a10bb
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