2000
DOI: 10.1108/00022660010340150
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A coupled FE‐BE analysis of acoustic cavities confined inside laminated composite enclosures

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Cited by 19 publications
(4 citation statements)
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References 25 publications
(42 reference statements)
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“…From this equation, natural frequency and mode shape data have been calculated. This data is then used in the mobility matrix [17] required for the structural-acoustic coupling.…”
Section: Boundary Conditions For Opening and Flexible Panelmentioning
confidence: 99%
See 1 more Smart Citation
“…From this equation, natural frequency and mode shape data have been calculated. This data is then used in the mobility matrix [17] required for the structural-acoustic coupling.…”
Section: Boundary Conditions For Opening and Flexible Panelmentioning
confidence: 99%
“…Recently, Koch [16] used FEM for finding the acoustic resonances in rectangular open cavities by solving the Helmholtz wave equation. Niyogi et al [17], had calculated acoustic pressure in the laminated cavity using coupled FEM -BEM. Nowadays many researchers developed analytical methods for calculating complex boundary problems to avoid large computational time and storage of coupled FEM-BEM.…”
Section: Introductionmentioning
confidence: 99%
“…Da ϕ z jedoch in den Gleichgewichtsbedingungen nicht vorkommt, kann man einen willkürlichen Steifigkeitskoeffizienten k ϕ z in lokalen Koordinaten einführen, der dazu dient, das Gleichungssystem bei der Transformation zu regularisieren. Dieser kann beliebig gewählt werden [140]: BATHE [16] schlägt einen Wert von etwa 1 10000 des kleinsten Diagonalwertes der Gesamtsteifigkeitsmatrix vor, mit dem etwa in [112] gute Ergebnisse erzielt werden. Die alternative Einführung von Scheibenelementen mit explizitem ϕ z -Freiheitsgrad, wie z.…”
Section: Kopplung Der In-plane Und Der Biegeschwingungenunclassified
“…The vibro-acoustics of composite wall and back cavity systems has not been extensively examined yet, though its importance for sensitive solutions in industrial applications such as aircraft and automobile production. The vibro-acoustic interconnection between composite plates and their back cabins has been analysed first by Niyogi et al. (2000).…”
Section: Introductionmentioning
confidence: 99%