Vibration simulation of plate with attached multiple absorbers

In general, solutions for standards to improve the vibration and noise problems is to redesign or modify the system such as increasing the thickness of the wall panels, enhancing the elasticity of the structure, and increase the damping mechanism of the structure. So in this study, the concept of Dy...

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Main Author:	Mohamad Nasir, Nadia Nurnajihah
Format:	Thesis
Published:	2014
Subjects:	TJ170-179 Mechanics applied to machinery. Dynamics
Online Access:	http://eprints.uthm.edu.my/6657/ http://eprints.uthm.edu.my/6657/1/NADIA_NURNAJIHAH_MOHAMAD_NASIR.pdf

id	uthm-6657
recordtype	eprints
spelling	uthm-66572015-05-19T09:59:12Z Vibration simulation of plate with attached multiple absorbers Mohamad Nasir, Nadia Nurnajihah TJ170-179 Mechanics applied to machinery. Dynamics In general, solutions for standards to improve the vibration and noise problems is to redesign or modify the system such as increasing the thickness of the wall panels, enhancing the elasticity of the structure, and increase the damping mechanism of the structure. So in this study, the concept of Dynamic Vibration Absorbers (DVA) are used to reduce vibration or amplitude. On a Simply Supported Plate (SSP) structure, the method used in this study were of analytical equations and finite element analysis. MATLAB ® is used to solve the equations of analytical theory, as well as simulation results verify the ANSYS ®. The study found that the analytical and simulation equation for SSP are same. The frequency range used are 10 Hz to 500 Hz and there are a number of modes show. In addition, the mass and damping in the absorber is changed. It aims to identify the mass and damping are most suitable for use in absorber system. Once seen, the mass of 1.0 kg more suitable for use as a percentage reduction or vibration amplitude is the highest of 40.99%. The damping values shows that the percentage reduction in the amplitude of the vibration or spring, 10 N / m is 44.64%. Further, this study was undertaken by placing the absorber at different locations configuration. This was followed by the addition of a single absorber and multiple absorber to see the average percentage reduction in vibration or amplitude. Overall global reduction of the four absorber is 68.07% compared to the single absorber only 33.31% reduction. Finally, it can be concluded that multiple vibration absorber can reduce the overall global vibration compared to a single absorber. However, for structures that take into account the weight of the main things to consider increasing the number of absorbers as excessive weight of the structure will result in a reduction in vehicle fuel efficiency, aerospace, automotive and machine systems. 2014 Thesis NonPeerReviewed application/pdf http://eprints.uthm.edu.my/6657/1/NADIA_NURNAJIHAH_MOHAMAD_NASIR.pdf Mohamad Nasir, Nadia Nurnajihah (2014) Vibration simulation of plate with attached multiple absorbers. Masters thesis, Universiti Tun Hussein Onn Malaysia. http://eprints.uthm.edu.my/6657/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Institutional Repository
collection	Online Access
topic	TJ170-179 Mechanics applied to machinery. Dynamics
spellingShingle	TJ170-179 Mechanics applied to machinery. Dynamics Mohamad Nasir, Nadia Nurnajihah Vibration simulation of plate with attached multiple absorbers
description	In general, solutions for standards to improve the vibration and noise problems is to redesign or modify the system such as increasing the thickness of the wall panels, enhancing the elasticity of the structure, and increase the damping mechanism of the structure. So in this study, the concept of Dynamic Vibration Absorbers (DVA) are used to reduce vibration or amplitude. On a Simply Supported Plate (SSP) structure, the method used in this study were of analytical equations and finite element analysis. MATLAB ® is used to solve the equations of analytical theory, as well as simulation results verify the ANSYS ®. The study found that the analytical and simulation equation for SSP are same. The frequency range used are 10 Hz to 500 Hz and there are a number of modes show. In addition, the mass and damping in the absorber is changed. It aims to identify the mass and damping are most suitable for use in absorber system. Once seen, the mass of 1.0 kg more suitable for use as a percentage reduction or vibration amplitude is the highest of 40.99%. The damping values shows that the percentage reduction in the amplitude of the vibration or spring, 10 N / m is 44.64%. Further, this study was undertaken by placing the absorber at different locations configuration. This was followed by the addition of a single absorber and multiple absorber to see the average percentage reduction in vibration or amplitude. Overall global reduction of the four absorber is 68.07% compared to the single absorber only 33.31% reduction. Finally, it can be concluded that multiple vibration absorber can reduce the overall global vibration compared to a single absorber. However, for structures that take into account the weight of the main things to consider increasing the number of absorbers as excessive weight of the structure will result in a reduction in vehicle fuel efficiency, aerospace, automotive and machine systems.
format	Thesis
author	Mohamad Nasir, Nadia Nurnajihah
author_facet	Mohamad Nasir, Nadia Nurnajihah
author_sort	Mohamad Nasir, Nadia Nurnajihah
title	Vibration simulation of plate with attached multiple absorbers
title_short	Vibration simulation of plate with attached multiple absorbers
title_full	Vibration simulation of plate with attached multiple absorbers
title_fullStr	Vibration simulation of plate with attached multiple absorbers
title_full_unstemmed	Vibration simulation of plate with attached multiple absorbers
title_sort	vibration simulation of plate with attached multiple absorbers
publishDate	2014
url	http://eprints.uthm.edu.my/6657/ http://eprints.uthm.edu.my/6657/1/NADIA_NURNAJIHAH_MOHAMAD_NASIR.pdf
first_indexed	2018-09-05T11:28:00Z
last_indexed	2018-09-05T11:28:00Z
_version_	1610766751718440960

Vibration simulation of plate with attached multiple absorbers

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