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Advanced Test Strategy for Identification and Characterization of Nonlinearities of Aerospace Structure

Göge, D. and Füllekrug, U. and Sinapius, M. and Link, M. and Gaul, L. (2005) Advanced Test Strategy for Identification and Characterization of Nonlinearities of Aerospace Structure. AIAA Journal, Vol.43 (5), pp. 974-9986.

Full text not available from this repository.

Abstract

The development of new, high-performance aerospace structures requires the availability of powerful and efficient methods for dynamic testing. Also, the European aircraft industry is calling for a reduction of the testing times for prototypes without diminishing the accuracy of the test results. As a consequence, substantial improvements in the test strategy of ground vibration and modal survey tests have been developed and applied during the last years. In addition, space agencies like the European Space Agency are interested in advanced measurement techniques, for example, when a spacecraft has to be qualified by a boosted modal survey test. Very high loads are introduced in the structure during these tests, and significant nonlinear behavior of the spacecraft can sometimes be observed. A test strategy is presented that can be used to identify and characterize nonlinear, structural behaviour during modal testing. The method assumes a weak non-linear behavior and operates in modal space. The approach can replace the common analysis by linearity plots that are utilized during modal survey testing of aerospace structures. The proposed strategy supplies much more information on the nonlinear behavior than the common procedure and allows for a reduction in the test duration.

Item URL in elib:https://elib.dlr.de/14539/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2005,
Title:Advanced Test Strategy for Identification and Characterization of Nonlinearities of Aerospace Structure
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Göge, D.UNSPECIFIEDUNSPECIFIED
Füllekrug, U.UNSPECIFIEDUNSPECIFIED
Sinapius, M.UNSPECIFIEDUNSPECIFIED
Link, M.UNSPECIFIEDUNSPECIFIED
Gaul, L.UNSPECIFIEDUNSPECIFIED
Date:2005
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:Vol.43
Page Range:pp. 974-9986
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Space
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:59

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