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Experimental Mechanics

, Volume 46, Issue 6, pp 777–787 | Cite as

Stiffness and Damping Identification from Full Field Measurements on Vibrating Plates

  • A. Giraudeau
  • B. Guo
  • F. Pierron
Article

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.

Keywords

Identification Virtual fields method Damping Forced vibrations Optical measurements Grid method Deflectometry Slope fields 

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Copyright information

© Society for Experimental Mechanics 2006

Authors and Affiliations

  1. 1.Laboratoire de Mécanique et Procédés de Fabrication (JE 2381)Ecole Nationale Supérieure d’Arts et MétiersChâlons-en-Champagne CedexFrance

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