FINITE ELEMENT APROACH TO A COUPLED STRUCTURAL ACOUSTIC SYSTEM: APPLICATION TO A LOUDSPEAKER CABINET - J. SEGURA ALCARAZ; BORRELL GADEA; M. JULIÃ SANCHIS E. J.; J. MASIÃ VAÃ‘Ã“; J. RAMIS SORIANO (Annals of the Oradea University: Fascicle Management and Technological Engineering, 2010)