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Main Title: Application of the Craig-Bampton model order reduction method to a composite structure: MAC and XOR
Author(s): Peredo Fuentes, Humberto
Zehn, Manfred
Type: Article
Language Code: en
Is Part Of: 10.14279/depositonce-6588
Abstract: The Craig-Bampton model order reduction (CBMOR) method based on the Rayleigh-Ritz approach is applied to dynamic behavior simulation of a composite structure in order to verify the method's feasibility and accuracy. The principle of this method is to represent a coupled component model based on the mass, damping and stiffness matrices. The methodology consists of a finite element model based on the classical laminate theory (CLT), a design of experiment to improve the modal assurance criteria (MAC) and experimental results in order to validate the reduced model based on CBMOR method and substructures (super-elements). Experimental modal analysis has been performed using a scanner laser Doppler vibrometer (SLDV) in order to assess the quality of the finite element models. The MAC and cross orthogonality MAC (XOR) values are computed to verify the eigenfrequencies and eigenvectors. This approach demonstrates the feasibility of using CBMOR for composite structures. The example is prepared and solved with MSC/NASTRAN SOL103. The design of experiments (DOE) method has been applied in order to identify the critical parameters and thus obtain high MAC values.
Issue Date: 2014
Date Available: 9-Apr-2018
DDC Class: 531 Klassische Mechanik, Festkörpermechanik
518 Numerische Analysis
Subject(s): SDTools-MATLAB
model analysis
Journal Title: Facta Universitatis / University of Niš: Series mechanical engineering
Publisher: Univ.
Publisher Place: Niš
Volume: 12
Issue: 1
Page Start: 37
Page End: 50
ISSN: 0354-2025
Appears in Collections:FG Strukturmechanik und Strukturberechnung » Publications

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