This paper investigates a hybrid method for the estimative of the structural forces in hermetic compressors. The forces applied in the compressor housing are transmitted trough suspension springs and the discharge tube and they are responsible for the structure-borne noise, which is caused by the vibration of the housing induced by the compressor imbalance force. With the estimated forces it's possible using them to simulate the radiated sound pressure by the hermetic compressor considering only the structure-borne noise. This methodology demonstrated to be a powerful tool to redesign the shell shape of the hermetic compressor aiming the radiated noise reduction, where the project parameters can be shape and thickness. The numerical results (using Boundary Element Method-BEM) presented good agreement with the experimental results, but same inaccuracies were obtained due to the limitations of the numerical model and the experimental data. Copyright © (2011) by the International Institute of Acoustics & Vibration.2 15551562Jeric, A., Govekar, E., Gradisek, J., Grabec, I., Influence of the housing on the noise emitted by a reciprocating compressor (2006) The Thirteenth International Congress on Sound and Vibration, , Vienna, Austria, July 2-6Nunes, O., Análise Teórica e Experimental do Campo Sonoro Irradiado por um Compressor Hermético (2005) Campinas, Faculdade de Engenharia Mecânica, 88p. , Universidade Estadual de Campinas. Dissertação (MestradoErol, H., The noise source identification of a reciprocating refrigeration compressor (1999) Sixth International Congress on Sound and Vubration, , 5-8 July, Denmark(2000) SYSNOISE Rev 5. 5: User Manual, , LMS InternationalSeybert, A.F., Review of the boundary element method in acoustics (1991) Noise Control Foundation, 2532, pp. 25-32. , New York, NY, U. S