This paper deals with a theoretical and experimental investigation into the vibration of portable grinder disks. Our research objective is to determine the elasto-dynamic properties for a new type of damped disk and evaluate their behavior in terms of reduction in noise emission levels. The disk vibration has been studied from a variety of standpoints. A comparison between the vibration modes obtained from theory and experimental data allows us to estimate the constitutive parameters of these new disks. In addition, our study includes a numerical analysis that takes into account the effects of the disk rotation. Theoretical modes show good agreement with experimental data. They both confirm a reduction in the high frequency modes exhibited by the damped disk when compared to the undamped disk. The finite element analysis allows prediction for the shift in natural frequencies produced by the centrifugal force field acting on the disk surface.

Experimental, Theoretical and Numerical Analysis of a Damped Portable–Grinder Disk / Farina, Angelo; Garziera, Rinaldo; Rainieri, Sara. - STAMPA. - 1:(1999), pp. 215-223. ((Intervento presentato al convegno 17th International Modal Analysis Conference tenutosi a Hyatt Orlando Hotel, Kissimmee, Florida, USA nel February 8-11, 1999.

Experimental, Theoretical and Numerical Analysis of a Damped Portable–Grinder Disk

FARINA, Angelo;GARZIERA, Rinaldo;RAINIERI, Sara
1999

Abstract

This paper deals with a theoretical and experimental investigation into the vibration of portable grinder disks. Our research objective is to determine the elasto-dynamic properties for a new type of damped disk and evaluate their behavior in terms of reduction in noise emission levels. The disk vibration has been studied from a variety of standpoints. A comparison between the vibration modes obtained from theory and experimental data allows us to estimate the constitutive parameters of these new disks. In addition, our study includes a numerical analysis that takes into account the effects of the disk rotation. Theoretical modes show good agreement with experimental data. They both confirm a reduction in the high frequency modes exhibited by the damped disk when compared to the undamped disk. The finite element analysis allows prediction for the shift in natural frequencies produced by the centrifugal force field acting on the disk surface.
091205364X
Experimental, Theoretical and Numerical Analysis of a Damped Portable–Grinder Disk / Farina, Angelo; Garziera, Rinaldo; Rainieri, Sara. - STAMPA. - 1:(1999), pp. 215-223. ((Intervento presentato al convegno 17th International Modal Analysis Conference tenutosi a Hyatt Orlando Hotel, Kissimmee, Florida, USA nel February 8-11, 1999.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1460535
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