Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion

The vibration of a cylindrical rotor partially filled with liquid is analyzed by a semianalytical method allowing for all nonlinear terms and arbitrary liquid depth. The method is verified by comparing with earlier experimental results and the nonlinear mechanism is examined that causes transition f...

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Autor principal:	Masahiko UTSUMI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	fluid induced vibration rotor partially filled with liquid sloshing nonlinear vibration vibration coupled with fluid motion semianalytical method Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/f2730aa2eb1c4a2995932008e6f473af
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spelling	oai:doaj.org-article:f2730aa2eb1c4a2995932008e6f473af2021-11-29T05:59:27ZVibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion2187-974510.1299/mej.19-00554https://doaj.org/article/f2730aa2eb1c4a2995932008e6f473af2020-06-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/4/7_19-00554/_pdf/-char/enhttps://doaj.org/toc/2187-9745The vibration of a cylindrical rotor partially filled with liquid is analyzed by a semianalytical method allowing for all nonlinear terms and arbitrary liquid depth. The method is verified by comparing with earlier experimental results and the nonlinear mechanism is examined that causes transition from unstable response to stable vibration. The examination shows that the transition arises from the nonlinearity of the kinematic boundary condition on the liquid surface. A closed loop mechanism is introduced to explain why the vibration suppression effect of nonlinearity in one boundary condition results in stabilization of the whole system. The case with larger dimensionless liquid depth is also addressed. Studies for this case were relatively scarce because many earlier studies were based on shallow water approximation.Masahiko UTSUMIThe Japan Society of Mechanical Engineersarticlefluid induced vibrationrotor partially filled with liquidsloshingnonlinear vibrationvibration coupled with fluid motionsemianalytical methodMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 4, Pp 19-00554-19-00554 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	fluid induced vibration rotor partially filled with liquid sloshing nonlinear vibration vibration coupled with fluid motion semianalytical method Mechanical engineering and machinery TJ1-1570
spellingShingle	fluid induced vibration rotor partially filled with liquid sloshing nonlinear vibration vibration coupled with fluid motion semianalytical method Mechanical engineering and machinery TJ1-1570 Masahiko UTSUMI Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
description	The vibration of a cylindrical rotor partially filled with liquid is analyzed by a semianalytical method allowing for all nonlinear terms and arbitrary liquid depth. The method is verified by comparing with earlier experimental results and the nonlinear mechanism is examined that causes transition from unstable response to stable vibration. The examination shows that the transition arises from the nonlinearity of the kinematic boundary condition on the liquid surface. A closed loop mechanism is introduced to explain why the vibration suppression effect of nonlinearity in one boundary condition results in stabilization of the whole system. The case with larger dimensionless liquid depth is also addressed. Studies for this case were relatively scarce because many earlier studies were based on shallow water approximation.
format	article
author	Masahiko UTSUMI
author_facet	Masahiko UTSUMI
author_sort	Masahiko UTSUMI
title	Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
title_short	Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
title_full	Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
title_fullStr	Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
title_full_unstemmed	Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
title_sort	vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/f2730aa2eb1c4a2995932008e6f473af
work_keys_str_mv	AT masahikoutsumi vibrationanalysisofacylindricalrotorpartiallyfilledwithliquidconsideringnonlinearityofliquidmotion
_version_	1718407621677940736

Vibration analysis of a cylindrical rotor partially filled with liquid considering nonlinearity of liquid motion

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