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Static and Dynamic Test Data Combined with Analytical Models.

Niedbal, N. and Klusowski, E. (1991) Static and Dynamic Test Data Combined with Analytical Models. In: DGLR-Bericht 91-06, 91-082, pp. 231-237. Int. Forum on Aeroelasticity and Structural Dynamics 1991 Combined with a One-Day Workshop on Smart Material Systems and Structures, June 3-6, 1991, Eurogress Center, Aachen..

Full text not available from this repository.

Abstract

Practical applications of updating techniques using measured normal mode parameters or mobility measurements document the advantages and future prospects of the updating technique, but also show the difficulties and problems for practical applications. These insufficiencies are mainly based on the limited number of measured normal modes and measured deformations compared to the large amount of stiffness and mass data of the finite element model. Moreover, the measured normal modes must not show elastic deformations on all substructures or coupling elements. However, modal synthesis technique requires accurate coupling stiffnesses to obtain reliable results. Interface loading may be one way to simulate dynamic loads at the coupling points, but this also has disadvantages caused by the interface loading structure. Another possible method of obtaining the required stiffness information of critical structural components is to perform aimed static deformation measurements. The combination of both static and dynamic test data enlarges the test information. This paper describes the formulation of an updating procedure which uses static and dynamic test data simultaneously. The updating results of a simulated eleven degree of freedom system and of a simple real structure (sandwich plate) show the performance of the proposed technique.

Item URL in elib:https://elib.dlr.de/39453/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1991, pages=7,
Title:Static and Dynamic Test Data Combined with Analytical Models.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Niedbal, N.UNSPECIFIEDUNSPECIFIED
Klusowski, E.UNSPECIFIEDUNSPECIFIED
Date:1991
Journal or Publication Title:DGLR-Bericht 91-06
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:91-082
Page Range:pp. 231-237
Status:Published
Keywords:Structural Dynamics, updating, finite-element, modal survey test, static deformations.
Event Title:Int. Forum on Aeroelasticity and Structural Dynamics 1991 Combined with a One-Day Workshop on Smart Material Systems and Structures, June 3-6, 1991, Eurogress Center, Aachen.
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 10:43

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