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Determination of Excitation Locations in Modal Survey Testing - Final Report - ESTEC Contract No. 7509/87/NL/PH.

Niedbal, N. (1991) Determination of Excitation Locations in Modal Survey Testing - Final Report - ESTEC Contract No. 7509/87/NL/PH. DLR-Interner Bericht. 232-89 C 08, 87 S.

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Abstract

Present modal survey test techniques suffer under the absence of a criterion for optimal exciter placement. Based on combinatorical optimization in combination with the condition number of the modal matrix of potential exciter points, a technique for optimal exciter point selection was developed. The a priori information on the normal mode parameters, required for these calculations, is determined by means of indicator function information and a difference criterion for the structural deformations. Tests on an analytical eleven-degree-of-freedom system, as well as a modal survey test on the real satellite model SIMOD, verify the performance of the proposed technique.

Item URL in elib:https://elib.dlr.de/39432/
Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1991,
Title:Determination of Excitation Locations in Modal Survey Testing - Final Report - ESTEC Contract No. 7509/87/NL/PH.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Niedbal, N.UNSPECIFIEDUNSPECIFIED
Date:1991
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:87
Status:Published
Keywords:Structural dynamics, phase resonance methods, phase separation methods, modal survey test, experimental modal analysis, optimal exciter points, appropriated exciter forces, normal modes.
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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