Nonlinear forced vibrations of a slightly curved pipe conveying supercritical fluid

Ye, SQ; Ding, H; Wei, S; Ji, JC; Chen, LQ

Nonlinear forced vibrations of a slightly curved pipe conveying supercritical fluid

Ye, SQ Ding, H Wei, S Ji, JC Chen, LQ

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Publisher:: SAGE PUBLICATIONS LTD
Publication Type:: Journal Article
Citation:: JVC/Journal of Vibration and Control, 2022
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Ye, SQ
dc.contributor.author	Ding, H
dc.contributor.author	Wei, S
dc.contributor.author	Ji, JC
dc.contributor.author	Chen, LQ
dc.date.accessioned	2023-03-30T03:36:00Z
dc.date.available	2023-03-30T03:36:00Z
dc.date.issued	2022-01-01
dc.identifier.citation	JVC/Journal of Vibration and Control, 2022
dc.identifier.issn	1077-5463
dc.identifier.issn	1741-2986
dc.identifier.uri	http://hdl.handle.net/10453/168832
dc.description.abstract	Vibrations of pipes caused by axially flowing fluids are very common in engineering applications. Due to material imperfections, guide misalignment, and improper supports, the installed pipes are prone to the initial curvature. Though small, the initial curvature can significantly change the dynamic characteristics of the slightly curved pipe system. This study investigates the non-linear forced vibration of a slightly curved pipe conveying supercritical fluid around the curved equilibrium, with the emphasis on amplitude–frequency responses around two asymmetric non-trivial equilibrium configurations. The governing equations for the forced vibration of a slightly curved pipe conveying supercritical fluids are derived using the generalized Hamilton principle. Then, the equations of motion are discretized into a set of coupled ordinary differential equations via the Galerkin truncation method and solved by the harmonic balance method combined with the pseudo-arc length technique. The approximate analytical results are verified by the numerical integration results. The obtained results demonstrate that the initial curvature has a significant effect on the dynamic characteristics of pipes conveying supercritical fluids, and can lead to significant differences in the dynamic response of the pipe system near different equilibrium configurations.
dc.language	English
dc.publisher	SAGE PUBLICATIONS LTD
dc.relation.ispartof	JVC/Journal of Vibration and Control
dc.relation.isbasedon	10.1177/10775463221102074
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0913 Mechanical Engineering
dc.subject.classification	Acoustics
dc.title	Nonlinear forced vibrations of a slightly curved pipe conveying supercritical fluid
dc.type	Journal Article
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0913 Mechanical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-30T03:35:59Z
pubs.publication-status	Published

Abstract:

Vibrations of pipes caused by axially flowing fluids are very common in engineering applications. Due to material imperfections, guide misalignment, and improper supports, the installed pipes are prone to the initial curvature. Though small, the initial curvature can significantly change the dynamic characteristics of the slightly curved pipe system. This study investigates the non-linear forced vibration of a slightly curved pipe conveying supercritical fluid around the curved equilibrium, with the emphasis on amplitude–frequency responses around two asymmetric non-trivial equilibrium configurations. The governing equations for the forced vibration of a slightly curved pipe conveying supercritical fluids are derived using the generalized Hamilton principle. Then, the equations of motion are discretized into a set of coupled ordinary differential equations via the Galerkin truncation method and solved by the harmonic balance method combined with the pseudo-arc length technique. The approximate analytical results are verified by the numerical integration results. The obtained results demonstrate that the initial curvature has a significant effect on the dynamic characteristics of pipes conveying supercritical fluids, and can lead to significant differences in the dynamic response of the pipe system near different equilibrium configurations.

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http://hdl.handle.net/10453/168832