J. Phys. IV France 02 (1992) C1-515-C1-518
EXPRESSIONS SIMPLIFIÉES DU FLUX D'ÉNERGIE DANS LES PLAQUESJ.-C. PASCAL
Centre Technique des Industries Mécaniques (CETIM), 52 avenue Félix-Louat, F-60300 Senlis, France
The equations for the energy flux carried by bending waves can be approximated using a thirteen point difference pattern for the spatial derivatives in plates. But this formulation can be simplified by introducing different degrees of approximation, making them accessible to measurement by techniques of finite differences between sensors. A conventional two point method gives acceptable results in comparison with the complete thirteen point method. This paper discusses this surprizing establishment.
© EDP Sciences 1992