elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Modal Rotor Identification by Base Excitation with Interface Force Measurements.

Sinapius, M. and Füllekrug, U. (1997) Modal Rotor Identification by Base Excitation with Interface Force Measurements. In: International Forum on Aeroelasticity and Structural Dynamics, Volume III, pp. 263-268. CEAS. International Conference on Aeroelasticity and Structural Dynamics, 17-20 June, 1997, Rome, Italy.

Full text not available from this repository.

Abstract

Most of the commonly used modal testing methods are based on multiple point excitation. An alternative to this kind of excitation is driven-base testing using a multi-axis shaker table. Driven base tests excellently deliver all the eigenmodes of vibration which significantly react to a total acceleration of the structure through its interface to a primary structure in real operation. As a typical example, the article presents the modal identification of a large propeller which was performed on DLR's multi-axis vibration table MAVIS in Goettingen. For the first time, the interface forces between the structure and the shaker table were measured during the investigation of such a dynamically complex structure under base excitation. The analysis of interface forces and moments yields the effective and generalized masses of the structure, whereas the analysis of the structural responses deliver the eigenfrequencies, modal damping values, and mode shapes. The paper summarizes the theoretical background, elucidates the test procedure and test data evaluation, and presents typical test results which emphasize the measured interface forces.

Item URL in elib:https://elib.dlr.de/39819/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1997,
Title:Modal Rotor Identification by Base Excitation with Interface Force Measurements.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sinapius, M.UNSPECIFIEDUNSPECIFIED
Füllekrug, U.UNSPECIFIEDUNSPECIFIED
Date:1997
Journal or Publication Title:International Forum on Aeroelasticity and Structural Dynamics, Volume III
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 263-268
Publisher:CEAS
Status:Published
Keywords:experimental modal analysis, multi-axial base excitation, interface force measurement
Event Title:International Conference on Aeroelasticity and Structural Dynamics, 17-20 June, 1997, Rome, Italy
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:UNSPECIFIED
DLR - Program:W RP - Raumtransport
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 10:55

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.