Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system

This thesis describes an investigation of the vibration of a system comprising a thin elastic plate, acting as a separator, between a fluid and gas column contained in a cylindrical container. The intention is that the plate will constrain the movement of the liquid to one end of the container, p...

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Main Author:	Zainulabidin, Muhd Hafeez
Format:	Thesis
Language:	English
Published:	2007
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.uthm.edu.my/6844/1/24p%20MUHD%20HAFEEZ%20ZAINULABIDIN%20.pdf
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id	my-uthm-ep.6844
record_format	uketd_dc
spelling	my-uthm-ep.68442022-03-28T01:45:32Z Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system 2007 Zainulabidin, Muhd Hafeez TA Engineering (General). Civil engineering (General) TA349-359 Mechanics of engineering. Applied mechanics This thesis describes an investigation of the vibration of a system comprising a thin elastic plate, acting as a separator, between a fluid and gas column contained in a cylindrical container. The intention is that the plate will constrain the movement of the liquid to one end of the container, preventing it from splashing around the container enclosure, hence improving the stability of the system. However in general systems involving fluid-structural vibration interaction, it has been shown by previous researchers that there exists a critical condition where the fluid and structure are strongly coupled together. At this critical condition the levels of vibration induced kinetic energy of the plate and fluid are comparable. This strong couple characteristic may affect the stability and structural health of the whole coupled system especially the thin elastic plate. In this thesis, critical vibration characteristics of such system are studied. The theoretical analysis of vibration interaction of liquid-structure-gas system is presented. The values of natural frequencies and relative energy distribution throughout the system obtained theoretically have been verified with the values obtained by finite element analysis and by laboratory experiment where appropriate. Then, the characteristics of strong coupled vibration interaction of liquid-structuregas system are investigated around three possible strong coupled conditions. Results have shown that for a liquid-structure-gas system, strong couple vibration occurs if the system fulfills either of the following conditions: 2007 Thesis http://eprints.uthm.edu.my/6844/ http://eprints.uthm.edu.my/6844/1/24p%20MUHD%20HAFEEZ%20ZAINULABIDIN%20.pdf text en public phd doctoral University of Strathclyde Department of Mechanical Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) Zainulabidin, Muhd Hafeez Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
description	This thesis describes an investigation of the vibration of a system comprising a thin elastic plate, acting as a separator, between a fluid and gas column contained in a cylindrical container. The intention is that the plate will constrain the movement of the liquid to one end of the container, preventing it from splashing around the container enclosure, hence improving the stability of the system. However in general systems involving fluid-structural vibration interaction, it has been shown by previous researchers that there exists a critical condition where the fluid and structure are strongly coupled together. At this critical condition the levels of vibration induced kinetic energy of the plate and fluid are comparable. This strong couple characteristic may affect the stability and structural health of the whole coupled system especially the thin elastic plate. In this thesis, critical vibration characteristics of such system are studied. The theoretical analysis of vibration interaction of liquid-structure-gas system is presented. The values of natural frequencies and relative energy distribution throughout the system obtained theoretically have been verified with the values obtained by finite element analysis and by laboratory experiment where appropriate. Then, the characteristics of strong coupled vibration interaction of liquid-structuregas system are investigated around three possible strong coupled conditions. Results have shown that for a liquid-structure-gas system, strong couple vibration occurs if the system fulfills either of the following conditions:
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Zainulabidin, Muhd Hafeez
author_facet	Zainulabidin, Muhd Hafeez
author_sort	Zainulabidin, Muhd Hafeez
title	Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
title_short	Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
title_full	Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
title_fullStr	Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
title_full_unstemmed	Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
title_sort	analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system
granting_institution	University of Strathclyde
granting_department	Department of Mechanical Engineering
publishDate	2007
url	http://eprints.uthm.edu.my/6844/1/24p%20MUHD%20HAFEEZ%20ZAINULABIDIN%20.pdf
_version_	1747831094086991872

Analysis of the vibration characteristics of a strongly coupled liquid-structure-gas system

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