Vibration simulation of a simply-supported beam with attached multiple absorbers

In general, the standard solutions to reduce the vibration and noise problems are to redesign and modify the system such as adding the thickness of wall panels, enhancing the elasticity of the structure and increase the damping mechanism of the structure. In this study, the concept of dynamic vibrat...

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Main Author:	Idris, Mohd Azli
Format:	Thesis
Language:	English English
Published:	2015
Subjects:	TA349-359 Mechanics of engineering Applied mechanics
Online Access:	http://eprints.uthm.edu.my/1363/1/24p%20MOHD%20AZLI%20IDRIS.pdf http://eprints.uthm.edu.my/1363/2/MOHD%20AZLI%20IDRIS%20WATERMARK.pdf
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spelling	my-uthm-ep.13632021-10-03T06:35:27Z Vibration simulation of a simply-supported beam with attached multiple absorbers 2015-01 Idris, Mohd Azli TA349-359 Mechanics of engineering. Applied mechanics In general, the standard solutions to reduce the vibration and noise problems are to redesign and modify the system such as adding the thickness of wall panels, enhancing the elasticity of the structure and increase the damping mechanism of the structure. In this study, the concept of dynamic vibration absorber is used on a beam structure to re-duce the vibration or amplitude. The methods employed in this study were analytical equations and finite element analysis. MATLAB® was used to transform analytical equations into graphs and at the same time to verify the finite element simulation of ANSYS®. Result shows that analytical equation and finite element simulation of a simply supported beam produce a similar outcome, which indicates a good agreement. The frequency range was studied between 5 Hz to 1000 Hz and there are four modes resulting shape. Further study was conducted by placing the absorber at different lo-cations configuration. This was followed by adding a single absorber and multiple absorbers to see the average percentage reduction in vibration’s amplitude. The over-all reduction achieved for multiple absorbers is 88.6% compared to a single absorber which only achieved 8.21% reduction. Finally, it can be concluded that multiple vi-bration absorber can be reduce the global vibration of structure compared to a single vibration absorber. However, for the structures that concern about weight, adding more dynamic vibration absorber needs to be considered properly since excess weight will result in less fuel efficiency of vehicles, aerospace, automotive and machine systems. 2015-01 Thesis http://eprints.uthm.edu.my/1363/ http://eprints.uthm.edu.my/1363/1/24p%20MOHD%20AZLI%20IDRIS.pdf text en public http://eprints.uthm.edu.my/1363/2/MOHD%20AZLI%20IDRIS%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English
topic	TA349-359 Mechanics of engineering Applied mechanics
spellingShingle	TA349-359 Mechanics of engineering Applied mechanics Idris, Mohd Azli Vibration simulation of a simply-supported beam with attached multiple absorbers
description	In general, the standard solutions to reduce the vibration and noise problems are to redesign and modify the system such as adding the thickness of wall panels, enhancing the elasticity of the structure and increase the damping mechanism of the structure. In this study, the concept of dynamic vibration absorber is used on a beam structure to re-duce the vibration or amplitude. The methods employed in this study were analytical equations and finite element analysis. MATLAB® was used to transform analytical equations into graphs and at the same time to verify the finite element simulation of ANSYS®. Result shows that analytical equation and finite element simulation of a simply supported beam produce a similar outcome, which indicates a good agreement. The frequency range was studied between 5 Hz to 1000 Hz and there are four modes resulting shape. Further study was conducted by placing the absorber at different lo-cations configuration. This was followed by adding a single absorber and multiple absorbers to see the average percentage reduction in vibration’s amplitude. The over-all reduction achieved for multiple absorbers is 88.6% compared to a single absorber which only achieved 8.21% reduction. Finally, it can be concluded that multiple vi-bration absorber can be reduce the global vibration of structure compared to a single vibration absorber. However, for the structures that concern about weight, adding more dynamic vibration absorber needs to be considered properly since excess weight will result in less fuel efficiency of vehicles, aerospace, automotive and machine systems.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Idris, Mohd Azli
author_facet	Idris, Mohd Azli
author_sort	Idris, Mohd Azli
title	Vibration simulation of a simply-supported beam with attached multiple absorbers
title_short	Vibration simulation of a simply-supported beam with attached multiple absorbers
title_full	Vibration simulation of a simply-supported beam with attached multiple absorbers
title_fullStr	Vibration simulation of a simply-supported beam with attached multiple absorbers
title_full_unstemmed	Vibration simulation of a simply-supported beam with attached multiple absorbers
title_sort	vibration simulation of a simply-supported beam with attached multiple absorbers
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2015
url	http://eprints.uthm.edu.my/1363/1/24p%20MOHD%20AZLI%20IDRIS.pdf http://eprints.uthm.edu.my/1363/2/MOHD%20AZLI%20IDRIS%20WATERMARK.pdf
_version_	1747830775119609856

Vibration simulation of a simply-supported beam with attached multiple absorbers

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