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Identification of elastic properties of stiffened composite shell

    Andrejs Kovalovs Affiliation
    ; Sandris Ručevskis Affiliation

Abstract

In the present study a numerical‐experimental method for the identification of the elastic properties of stiffened composite panel from experimental vibration analysis is carried out. The elastic properties of a panel are found by an identification procedure based on the method of experiment design, the response surface approach, and the finite element method. The results obtained were verified by comparing the experimentally measured eigenfrequencies with the numerical ones obtained by FEM at the point of optima.


Santrauka


Aprašomas skaitinis‐eksperimentinis briaunotos kompozitines paneles tamprumo savybiu nustatymo metodas. Šioms savybems nustatyti taikytas identifikavimo metodas, kuriame sujungti skaitinio eksperimento planavimas, skaičiavimas baigtiniu elementu metodu bei gautu duomenu aproksimavimas. Identifikavimo rezultatus patvirtina pačios paneles dažniu eksperimentiniu duomenu palyginimas su skaitiniais baigtiniu elementu metodu aptiktu tamprumo savybiu rezultatais.


First Publish Online: 14 Oct 2010


Reikšminiai žodžiai: baigtinių elementų modelis, identifikavimas, valdomas paviršius, vibracijos testas, POLYTEC.

Keyword : finite element model, identification, response surface, vibration test, POLYTEC

How to Cite
[1]
Kovalovs, A. and Ručevskis, S. 2009. Identification of elastic properties of stiffened composite shell. Aviation. 13, 4 (Dec. 2009), 101-108. DOI:https://doi.org/10.3846/1648-7788.2009.13.101-108.
Published in Issue
Dec 31, 2009
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