Modal analysis of honeycomb panels and the influence of boundary conditions on the calculation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46709002%3A_____%2F14%3A%230000790" target="_blank" >RIV/46709002:_____/14:#0000790 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modal analysis of honeycomb panels and the influence of boundary conditions on the calculation

Popis výsledku v původním jazyce

The investigation of the behaviour of rectangular shaped sandwich specimens is focused on the modal analysis and the experimental determination of the samples damping properties. Panels are made by unique technique of dry lamination patented by Czech company 5M s.r.o. The Hexagonal cell honeycomb core is made of aluminium as well as the facesheets. The influence of the main directions of anisotropy and the different panel?s thicknesses on the natural frequencies are investigated. The results of experiments are compared with the theoretical calculations and finite element method (FEM) simulation results. Theories used for the calculations are the First-order shear deformation theory (FSDT) and the Reddy?s third-order shear deformation theory (TSDT). FEMmodel had mapped mesh with 20-nodes brick elements. The results we got from FEA were closest to the experimentally measured data, but still with a deviation. The main reason of different results are geometrical irregularities. While FEM

Název v anglickém jazyce

Modal analysis of honeycomb panels and the influence of boundary conditions on the calculation

Popis výsledku anglicky

The investigation of the behaviour of rectangular shaped sandwich specimens is focused on the modal analysis and the experimental determination of the samples damping properties. Panels are made by unique technique of dry lamination patented by Czech company 5M s.r.o. The Hexagonal cell honeycomb core is made of aluminium as well as the facesheets. The influence of the main directions of anisotropy and the different panel?s thicknesses on the natural frequencies are investigated. The results of experiments are compared with the theoretical calculations and finite element method (FEM) simulation results. Theories used for the calculations are the First-order shear deformation theory (FSDT) and the Reddy?s third-order shear deformation theory (TSDT). FEMmodel had mapped mesh with 20-nodes brick elements. The results we got from FEA were closest to the experimentally measured data, but still with a deviation. The main reason of different results are geometrical irregularities. While FEM

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

COMAT 2014

ISBN

978-80-87294-45-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

COMTES FHT a.s.

Místo vydání

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Místo konání akce

Plzeň

Datum konání akce

19. 11. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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