ISSN 2542–0380
Труды Института механики им. Р.Р. Мавлютова
Электронный научный журнал | Electronic Scientific Journal
Proceedings of the Mavlyutov Institute of Mechanics


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Ilgamov M.A., Lukmanov R.L., Zaripov D.M. Excitation mechanism of hydroelastic oscillations in a pipeline Proceedings of the Institute of Mechanics of Ufa Branch of RAS. 3 (2003). 21–52.
2003. Vol. 3. Issue 1, Pp. 21–52
URL: http://proc.uimech.org/uim2003.1.002,en
DOI: 10.21662/uim2003.1.002
Excitation mechanism of hydroelastic oscillations in a pipeline
Ilgamov M.A., Lukmanov R.L., Zaripov D.M.
Institute of Mechanics, Ufa

Abstract

The article considers bending oscillations generated in the vertical plane of a horizontal liquid-filled pipe under the impact of a harmonic pressure wave in the liquid in the cases that the ends of the pipe are fixed in two different ways. The investigation is focused on the impact of the initially curved position of the pipe and the excitation frequency on the behaviour of forced and parametric oscillations. The conditions are reveled for the occurrence of nonlinear resonance and also the excitation of upper harmonics/ The oscillations of the system vary from periodic to chaotic depending on the parameters of the problem.

Keywords

pipeline,
internal pressure,
excitation of transverse oscillations,
forced and parametric oscillations,
periodic and chaotic modes