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». Th...

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Autores principales:	Adnan D. Mohammed, Hawraa S. Ibraham
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2011
Materias:	Keywords: - Type I diabetes, Backstepping, Bergman’s model, oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/f8b244f6b670470da87bd789263ff39e
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spelling	oai:doaj.org-article:f8b244f6b670470da87bd789263ff39e2021-12-02T05:27:12ZThe Estimation of Vibrational Energy of Two Coupled (Welded) Plates Using Statistical Energy Analysis1818-11712312-0789https://doaj.org/article/f8b244f6b670470da87bd789263ff39e2011-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/79https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 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. Adnan D. MohammedHawraa S. IbrahamAl-Khwarizmi College of Engineering – University of BaghdadarticleKeywords: - Type I diabetes, Backstepping, Bergman’s model, oral glucose tolerance test.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 7, Iss 4 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Keywords: - Type I diabetes, Backstepping, Bergman’s model, oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Keywords: - Type I diabetes, Backstepping, Bergman’s model, oral glucose tolerance test. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Adnan D. Mohammed Hawraa S. Ibraham 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	Adnan D. Mohammed Hawraa S. Ibraham
author_facet	Adnan D. Mohammed Hawraa S. Ibraham
author_sort	Adnan D. Mohammed
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/f8b244f6b670470da87bd789263ff39e
work_keys_str_mv	AT adnandmohammed theestimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT hawraasibraham theestimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT adnandmohammed estimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis AT hawraasibraham estimationofvibrationalenergyoftwocoupledweldedplatesusingstatisticalenergyanalysis
_version_	1718400450011594752

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

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