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Experimental validation of a Lagrange-Rayleigh-Ritz modelling technique for mass loaded actively controlled panels

Experimental validation of a Lagrange-Rayleigh-Ritz modelling technique for mass loaded actively controlled panels
Experimental validation of a Lagrange-Rayleigh-Ritz modelling technique for mass loaded actively controlled panels
This paper describes the validation of a Lagrange-Rayleigh-Ritz technique for the mathematical modeling of mass loaded panels for active control studies. The validation has been carried out by comparing the results produced by a Lagrange-Rayleigh-Ritz model with the results produced by a finite-element model and experimental data. Attention was focussed on a simply supported panel with a lumped mass constrained to its surface to simulate the presence of equipment mounted on the panel and twin piezoelectric patches bonded to the panel, working as sensors and actuators. The design of the experimental rig is described in detail, and a test campaign was carried out to obtain a set of transfer functions characteristic of this plant. The experimental data are then used to validate the predictions of the mathematical model. In particular, it was demonstrated that the Lagrange-Rayleigh-Ritz model was able to reproduce accurately the dynamics of the plant requiring a relatively small number of degrees of freedom.
panels, mathematical models, loads
0893-1321
31-37
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72

Aglietti, G.S. and Rogers, E. (2003) Experimental validation of a Lagrange-Rayleigh-Ritz modelling technique for mass loaded actively controlled panels. Journal of Aerospace Engineering, 16 (1), 31-37. (doi:10.1061/(ASCE)0893-1321(2003)16:1(31)).

Record type: Article

Abstract

This paper describes the validation of a Lagrange-Rayleigh-Ritz technique for the mathematical modeling of mass loaded panels for active control studies. The validation has been carried out by comparing the results produced by a Lagrange-Rayleigh-Ritz model with the results produced by a finite-element model and experimental data. Attention was focussed on a simply supported panel with a lumped mass constrained to its surface to simulate the presence of equipment mounted on the panel and twin piezoelectric patches bonded to the panel, working as sensors and actuators. The design of the experimental rig is described in detail, and a test campaign was carried out to obtain a set of transfer functions characteristic of this plant. The experimental data are then used to validate the predictions of the mathematical model. In particular, it was demonstrated that the Lagrange-Rayleigh-Ritz model was able to reproduce accurately the dynamics of the plant requiring a relatively small number of degrees of freedom.

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More information

Published date: 2003
Keywords: panels, mathematical models, loads

Identifiers

Local EPrints ID: 22207
URI: http://eprints.soton.ac.uk/id/eprint/22207
ISSN: 0893-1321
PURE UUID: 2962ff25-762f-430f-97d4-a2b4a883b1bd
ORCID for E. Rogers: ORCID iD orcid.org/0000-0003-0179-9398

Catalogue record

Date deposited: 20 Mar 2006
Last modified: 16 Mar 2024 02:41

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Contributors

Author: G.S. Aglietti
Author: E. Rogers ORCID iD

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