The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis

This paper deals with a method called Statistical Energy Analysis that can be applied to the mechanical and acoustical systems like buildings, bridges and aircrafts etc. S.E.A as a tool can be applied to the resonant systems in the circumstances of high frequency or/and complex structure». The para...

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Autores principales:	Hawraa S. Ibraham, Adnan D. Mohammed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2011
Materias:	Type I diabetes Backstepping Bergmans model oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/d063ee48eb434a8498d8da464832ea09
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spelling	oai:doaj.org-article:d063ee48eb434a8498d8da464832ea092021-12-02T04:16:48ZThe Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis1818-1171https://doaj.org/article/d063ee48eb434a8498d8da464832ea092011-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2182https://doaj.org/toc/1818-1171This paper deals with a method called Statistical Energy Analysis that can be applied to the mechanical and acoustical systems like buildings, bridges and aircrafts etc. S.E.A as a tool can be applied to the resonant systems in the circumstances of high frequency or/and complex structure». The parameters of S.E.A such as coupling loss factor, internal loss factor, modal density and input power are clarified in this work ; coupled plate sub-systems and explanations are presented for these parameters. The developed system is assumed to be resonant, conservative, linear and there is an equipartition of energy between all the resonant modes within a given frequency band in a given sub-system. The aim of this work is to find the energy stored in the sub-systems for two coupled (welded) plates in rectangular angle systems and study the effect of changing sub-systems dimensions, the results shows that as surface area of directly driven plates A1 increases energy level of plate 1 increases while a reduction in the energy level of indirectly driven plate (plate 2) is noticed. This is because of the strength of coupling decreases towards the weak coupling condition and this leads to a reduction in the power transferred from plate 1 to plate 2 and consequently a lower energy level for plate 2. In addition the effect of changing the internal loss factor for a range of (0.00001-0.1) causes a reduction of the values of energy level in these sub-systems. because the increasing of internal loss factor values led to the increasing of the material resistance and that will dissipate the energy flow across those sub-systems. A comparison is made between S.E.A models built by FORTRAN program and Finite Element model solved by ANSYS package.Hawraa S. IbrahamAdnan D. MohammedAl-Khwarizmi College of Engineering – University of BaghdadarticleType I diabetesBacksteppingBergmans modeloral glucose tolerance test.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 7, Iss 4, Pp 41-53 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Type I diabetes Backstepping Bergmans model oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Type I diabetes Backstepping Bergmans model oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Hawraa S. Ibraham Adnan D. Mohammed The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
description	This paper deals with a method called Statistical Energy Analysis that can be applied to the mechanical and acoustical systems like buildings, bridges and aircrafts etc. S.E.A as a tool can be applied to the resonant systems in the circumstances of high frequency or/and complex structure». The parameters of S.E.A such as coupling loss factor, internal loss factor, modal density and input power are clarified in this work ; coupled plate sub-systems and explanations are presented for these parameters. The developed system is assumed to be resonant, conservative, linear and there is an equipartition of energy between all the resonant modes within a given frequency band in a given sub-system. The aim of this work is to find the energy stored in the sub-systems for two coupled (welded) plates in rectangular angle systems and study the effect of changing sub-systems dimensions, the results shows that as surface area of directly driven plates A1 increases energy level of plate 1 increases while a reduction in the energy level of indirectly driven plate (plate 2) is noticed. This is because of the strength of coupling decreases towards the weak coupling condition and this leads to a reduction in the power transferred from plate 1 to plate 2 and consequently a lower energy level for plate 2. In addition the effect of changing the internal loss factor for a range of (0.00001-0.1) causes a reduction of the values of energy level in these sub-systems. because the increasing of internal loss factor values led to the increasing of the material resistance and that will dissipate the energy flow across those sub-systems. A comparison is made between S.E.A models built by FORTRAN program and Finite Element model solved by ANSYS package.
format	article
author	Hawraa S. Ibraham Adnan D. Mohammed
author_facet	Hawraa S. Ibraham Adnan D. Mohammed
author_sort	Hawraa S. Ibraham
title	The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
title_short	The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
title_full	The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
title_fullStr	The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
title_full_unstemmed	The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis
title_sort	estimation of vibrational energy of two coupled (welded) plates using statistical energy analysis
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2011
url	https://doaj.org/article/d063ee48eb434a8498d8da464832ea09
work_keys_str_mv	AT hawraasibraham theestimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT adnandmohammed theestimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT hawraasibraham estimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT adnandmohammed estimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis
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The Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis

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