Theoretical - Numerical Modal Analysis of a portable grinder disk

This work presents the analytical solution for the vibrations of a portable grinder disk, its elastic parameters evaluation by comparing with calculated numerical solution by comparing experimental data frequencies and, eventually, a for vibrations under operating conditions which impose a very quick rotation to the disk. These results are worked out for two kinds of disks: normal disks and high internal damping disks, the latter having been recently introduced with the aim of noise reduction. A comparison between calculated data and experimental data obtained in [I] shows a good accordance between experimental results and theoretical model.