n this paper the vibro-acoustic behaviour of a washing machine is deeply investigated, focusing on the mechanical noise sources. At first, a complete modal analysis of the cabinet is performed to define the vibration modes; then all the mechanical components (springs, dampers) are studied in order to understand the origin of the forces giving birth to the cabinet vibrations and to the corresponding emitted noise. To better understand the dynamic behaviour of the washer, the movements of the whole oscillating group were measured during different kinds of washing cycles, pointing out the critical phases. A large database containing all this information has been collected, and this will be the starting point for the development of a numerical model of the machine aimed at testing new solutions to reduce the emitted noise.
Experimental characterization of the vibro-acoustic behaviour of a washing machine / Argentini, T; M., Belloli; Fraternale, G; Gaudiano, N; Sabato, D; Vanali, Marcello. - ELETTRONICO. - (2007), pp. 1-8. (Intervento presentato al convegno 25th Conference and Exposition on Structural Dynamics 2007, IMAC-XXV; Orlando, FL; United States; 19 February 2007 through 22 February 2007; Code 89650 tenutosi a Orlando Florida USA. nel February 19-22, 2007).
Experimental characterization of the vibro-acoustic behaviour of a washing machine
VANALI, Marcello
2007-01-01
Abstract
n this paper the vibro-acoustic behaviour of a washing machine is deeply investigated, focusing on the mechanical noise sources. At first, a complete modal analysis of the cabinet is performed to define the vibration modes; then all the mechanical components (springs, dampers) are studied in order to understand the origin of the forces giving birth to the cabinet vibrations and to the corresponding emitted noise. To better understand the dynamic behaviour of the washer, the movements of the whole oscillating group were measured during different kinds of washing cycles, pointing out the critical phases. A large database containing all this information has been collected, and this will be the starting point for the development of a numerical model of the machine aimed at testing new solutions to reduce the emitted noise.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
