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Energy finite element method for vib...

Zhang, Weiguo.

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Energy finite element method for vibration analysis of stiffened plates under fluid loading.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Energy finite element method for vibration analysis of stiffened plates under fluid loading./
Author:	Zhang, Weiguo.
Description:	127 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-06, Section: B, page: 2863.
Contained By:	Dissertation Abstracts International64-06B.
Subject:	Engineering, Marine and Ocean. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3096252
ISBN:	0496438775

Energy finite element method for vibration analysis of stiffened plates under fluid loading.
Zhang, Weiguo.

Energy finite element method for vibration analysis of stiffened plates under fluid loading. - 127 p.

Source: Dissertation Abstracts International, Volume: 64-06, Section: B, page: 2863.

Thesis (Ph.D.)--University of Michigan, 2003.

Formulations for New Energy Finite Element Analysis (EFEA) are developed for high frequency vibration analysis of stiffened plates and stiffened cylindrical shells under heavy fluid loading. An alternative approach is presented for deriving the EFEA governing differential equations without a lossy plane approximation. Instead, the EFEA differential equations are derived by considering the response of a plate as a linear superposition of orthogonal waves. The added mass effect and radiation damping effect due to heavy fluid are incorporated in the derivation of the EFEA governing differential equations. The fluid loading effect and the presence of stiffeners are accounted in the computation of the power transfer coefficients through plate/stiffener joints. In addition, Periodic Structure (PS) theory is employed for predicting the high frequency vibration of fluid-loaded cylindrical shells with periodic circumferential stiffeners. The periodicity effects such as the pass/stop characteristics are accounted in the EFEA solution. The new formulation is validated through comparison of EFEA results to solutions by very dense finite element model, the solutions by classical techniques such as Statistical Energy Analysis (SEA) method, and results by the modal decomposition method for bodies of revolution. The energy ratios between the receiving members and the excited members are compared. The good correlation indicates that the new EFEA formulations capture properly the heavy fluid loading effects of the exterior fluid medium, the stiffener effects, and the periodicity characteristics due to periodic stiffeners. The real marine structures are analyzed by the new formulations. The effects of heavy fluid loading on vibration response are discussed and the advantages of the new formulation are identified.

ISBN: 0496438775Subjects--Topical Terms:

1019064
Engineering, Marine and Ocean.

Energy finite element method for vibration analysis of stiffened plates under fluid loading.
LDR:02755nmm 2200289 4500 001 1836526
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020 $a 0496438775
035 $a (UnM)AAI3096252
035 $a AAI3096252
040 $a UnM $c UnM
100 1 $a Zhang, Weiguo. $3 1925004
245 1 0 $a Energy finite element method for vibration analysis of stiffened plates under fluid loading.
300 $a 127 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-06, Section: B, page: 2863.
500 $a Chair: Nickolas Vlahopoulos.
502 $a Thesis (Ph.D.)--University of Michigan, 2003.
520 $a Formulations for New Energy Finite Element Analysis (EFEA) are developed for high frequency vibration analysis of stiffened plates and stiffened cylindrical shells under heavy fluid loading. An alternative approach is presented for deriving the EFEA governing differential equations without a lossy plane approximation. Instead, the EFEA differential equations are derived by considering the response of a plate as a linear superposition of orthogonal waves. The added mass effect and radiation damping effect due to heavy fluid are incorporated in the derivation of the EFEA governing differential equations. The fluid loading effect and the presence of stiffeners are accounted in the computation of the power transfer coefficients through plate/stiffener joints. In addition, Periodic Structure (PS) theory is employed for predicting the high frequency vibration of fluid-loaded cylindrical shells with periodic circumferential stiffeners. The periodicity effects such as the pass/stop characteristics are accounted in the EFEA solution. The new formulation is validated through comparison of EFEA results to solutions by very dense finite element model, the solutions by classical techniques such as Statistical Energy Analysis (SEA) method, and results by the modal decomposition method for bodies of revolution. The energy ratios between the receiving members and the excited members are compared. The good correlation indicates that the new EFEA formulations capture properly the heavy fluid loading effects of the exterior fluid medium, the stiffener effects, and the periodicity characteristics due to periodic stiffeners. The real marine structures are analyzed by the new formulations. The effects of heavy fluid loading on vibration response are discussed and the advantages of the new formulation are identified.
590 $a School code: 0127.
650 4 $a Engineering, Marine and Ocean. $3 1019064
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Applied Mechanics. $3 1018410
690 $a 0547
690 $a 0548
690 $a 0346
710 2 0 $a University of Michigan. $3 777416
773 0 $t Dissertation Abstracts International $g 64-06B.
790 1 0 $a Vlahopoulos, Nickolas, $e advisor
790 $a 0127
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3096252