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NONLINEAR RESPONSE AND NOISE TRANSMI...

HONG, HONG-KI.

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NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS.

Record Type:	Electronic resources : Monograph/item
Title/Author:	NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS./
Author:	HONG, HONG-KI.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 1982,
Description:	106 p.
Notes:	Source: Dissertations Abstracts International, Volume: 43-07, Section: B.
Contained By:	Dissertations Abstracts International43-07B.
Subject:	Civil engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8307582

NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS.
HONG, HONG-KI.

NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS. - Ann Arbor : ProQuest Dissertations & Theses, 1982 - 106 p.

Source: Dissertations Abstracts International, Volume: 43-07, Section: B.

Thesis (Ph.D.)--Columbia University, 1982.

This item must not be sold to any third party vendors.

An analytical study is presented to predict the nonlinear response of a double wall sandwich panel system subjected to random type loading. Viscoelastic and nonlinear spring-dashpot models are chosen to characterize the behavior of the core. The noise transmission through this panel system into an acoustic enclosure of which the interiors are covered with porous absorption materials is determined. The absorbent boundary conditions of the enclosure are accounted for by a two-step transformation of the boundary effect into a wave equation which governs the acoustic pressure field inside the enclosure. The nonlinear panel response and interior acoustic pressure are obtained by utilizing modal analyses and Monte Carlo simulation techniques. Numerical results include the response spectral densities, root mean square responses, probability density function histograms, crossing rates, and noise reduction. It is found that by proper selection of the dynamic parameters and damping characteristics, the structural response and noise transmission can be significantly reduced.Subjects--Topical Terms:

860360
Civil engineering.

NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS.
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100 1 $a HONG, HONG-KI. $3 3548101
245 1 0 $a NONLINEAR RESPONSE AND NOISE TRANSMISSION OF DOUBLE WALL SANDWICH PANELS.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1982
300 $a 106 p.
500 $a Source: Dissertations Abstracts International, Volume: 43-07, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--Columbia University, 1982.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a An analytical study is presented to predict the nonlinear response of a double wall sandwich panel system subjected to random type loading. Viscoelastic and nonlinear spring-dashpot models are chosen to characterize the behavior of the core. The noise transmission through this panel system into an acoustic enclosure of which the interiors are covered with porous absorption materials is determined. The absorbent boundary conditions of the enclosure are accounted for by a two-step transformation of the boundary effect into a wave equation which governs the acoustic pressure field inside the enclosure. The nonlinear panel response and interior acoustic pressure are obtained by utilizing modal analyses and Monte Carlo simulation techniques. Numerical results include the response spectral densities, root mean square responses, probability density function histograms, crossing rates, and noise reduction. It is found that by proper selection of the dynamic parameters and damping characteristics, the structural response and noise transmission can be significantly reduced.
590 $a School code: 0054.
650 4 $a Civil engineering. $3 860360
650 4 $a Mechanics. $3 525881
690 $a 0543
690 $a 0346
710 2 $a Columbia University. $3 571054
773 0 $t Dissertations Abstracts International $g 43-07B.
790 $a 0054
791 $a Ph.D.
792 $a 1982
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8307582