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Energy finite element analysis devel...

Yan, Xiaoyan.

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Energy finite element analysis developments for high frequency vibration analysis of composite structures.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Energy finite element analysis developments for high frequency vibration analysis of composite structures./
Author:	Yan, Xiaoyan.
Description:	134 p.
Notes:	Advisers: Nickolas Vlahopoulous; Aimin Wang.
Contained By:	Dissertation Abstracts International69-03B.
Subject:	Engineering, Marine and Ocean. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3305111
ISBN:	9780549512493

Energy finite element analysis developments for high frequency vibration analysis of composite structures.
Yan, Xiaoyan.

Energy finite element analysis developments for high frequency vibration analysis of composite structures. - 134 p.

Advisers: Nickolas Vlahopoulous; Aimin Wang.

Thesis (Ph.D.)--University of Michigan, 2008.

Energy finite element analysis (EFEA) has been proven to be an effective and reliable tool for high frequency vibration analysis. It uses the averaged energy density as the primary variable to form the governing differential equations and provides a practical approach to evaluate the structural response at high frequencies, which is hard to reach with conventional finite element analysis because of the computational cost. In the past, EFEA has been applied successfully to different structures, such as beams, rods, plates, curved panels etc. Until recently, however, not much work has been done in the field of composite structures.

ISBN: 9780549512493Subjects--Topical Terms:

1019064
Engineering, Marine and Ocean.

Energy finite element analysis developments for high frequency vibration analysis of composite structures.
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020 $a 9780549512493
035 $a (UMI)AAI3305111
035 $a AAI3305111
040 $a UMI $c UMI
100 1 $a Yan, Xiaoyan. $3 1272286
245 1 0 $a Energy finite element analysis developments for high frequency vibration analysis of composite structures.
300 $a 134 p.
500 $a Advisers: Nickolas Vlahopoulous; Aimin Wang.
500 $a Source: Dissertation Abstracts International, Volume: 69-03, Section: B, page: 1878.
502 $a Thesis (Ph.D.)--University of Michigan, 2008.
520 $a Energy finite element analysis (EFEA) has been proven to be an effective and reliable tool for high frequency vibration analysis. It uses the averaged energy density as the primary variable to form the governing differential equations and provides a practical approach to evaluate the structural response at high frequencies, which is hard to reach with conventional finite element analysis because of the computational cost. In the past, EFEA has been applied successfully to different structures, such as beams, rods, plates, curved panels etc. Until recently, however, not much work has been done in the field of composite structures.
520 $a Research for developing a new EFEA formulation for modeling composite laminate plates is presented in this dissertation. The EFEA governing differential equation, with the time- and space- averaged energy density as the primary variable, is derived for general composite laminate plates. The power transmission characteristics at plate junctions of non-isotropic materials, including orthotropic plates and composite laminate plates are studied in order to obtain the power transmission coefficients at the junction. These coefficients are utilized to compute the joint matrix that is needed to assemble the global system of EFEA equations. The global system of EFEA equations can be solved numerically and the energy density distribution within the entire system can then be obtained. The results obtained from the EFEA formulation have been validated through comparison with results from very dense FEA models.
590 $a School code: 0127.
650 4 $a Engineering, Marine and Ocean. $3 1019064
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0547
690 $a 0548
710 2 $a University of Michigan. $3 777416
773 0 $t Dissertation Abstracts International $g 69-03B.
790 $a 0127
790 1 0 $a Vlahopoulous, Nickolas, $e advisor
790 1 0 $a Wang, Aimin, $e advisor
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3305111