Stiffness and damping identification from full field measurements on vibrating plates
Stiffness and damping identification from full field measurements on vibrating plates
The paper presents an experimental application of a method leading to the identification of the elastic and damping material properties of isotropic vibrating plates. The theory assumes that the searched parameters can be extracted from curvature and deflection fields measured on the whole surface of the plate at two particular instants of the vibrating motion. The experimental application consists in an original excitation fixture, a particular adaptation of an optical full-field measurement technique, a data preprocessing giving the curvature and deflection fields and finally in the identification process using the Virtual Fields Method (VFM). The principle of the deflectometry technique used for the measurements is presented. First results of identification on an acrylic plate are presented and compared to reference values. Results are discussed and improvements of the method are proposed.
identification, virtual fields method, damping, forced vibrations, optical measurements, grid method, deflectometry, slope fields
777-787
Giraudeau, A.
5ed9acc2-14da-4d5a-9944-bdca36d7cca5
Guo, B.
6c4581ac-e3e3-4002-992a-3abb7776ec5d
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
22 September 2006
Giraudeau, A.
5ed9acc2-14da-4d5a-9944-bdca36d7cca5
Guo, B.
6c4581ac-e3e3-4002-992a-3abb7776ec5d
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Giraudeau, A., Guo, B. and Pierron, F.
(2006)
Stiffness and damping identification from full field measurements on vibrating plates.
Experimental Mechanics, 46 (6), .
(doi:10.1007/s11340-006-9477-7).
Abstract
The paper presents an experimental application of a method leading to the identification of the elastic and damping material properties of isotropic vibrating plates. The theory assumes that the searched parameters can be extracted from curvature and deflection fields measured on the whole surface of the plate at two particular instants of the vibrating motion. The experimental application consists in an original excitation fixture, a particular adaptation of an optical full-field measurement technique, a data preprocessing giving the curvature and deflection fields and finally in the identification process using the Virtual Fields Method (VFM). The principle of the deflectometry technique used for the measurements is presented. First results of identification on an acrylic plate are presented and compared to reference values. Results are discussed and improvements of the method are proposed.
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Submitted date: 3 March 2006
Published date: 22 September 2006
Keywords:
identification, virtual fields method, damping, forced vibrations, optical measurements, grid method, deflectometry, slope fields
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 210643
URI: http://eprints.soton.ac.uk/id/eprint/210643
ISSN: 1741-2765
PURE UUID: 5fca9415-c421-4aab-8908-d6508591d05a
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Date deposited: 13 Mar 2012 14:27
Last modified: 15 Mar 2024 03:35
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Author:
A. Giraudeau
Author:
B. Guo
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