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SEA modeling and experimental validation of structure-borne noise paths in an aircraft fuselage
Technical Paper
2008-36-0066
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Statistical Energy Analysis (SEA) is the standard method used to access noise and vibration levels in aircrafts and it has been applied to a wide range of problems in the aerospace industry. Even though much research has been carried on in the subject, some questions still remain about the process of modeling aircraft structures and the necessary validation steps. In this work, the development of a SEA model of a fuselage section is discussed. Special attention is given to the structure-borne noise transmission between the fuselage and floor panels and different modeling approaches are investigated. Data obtained through experimental tests were then used to verify the modeling approaches. It is seen that overall SEA results display a good agreement with tests. In the case of the floor panel, model results are very sensitive to modeling approaches and given that the transmission path is correctly represented, the SEA results reasonably match the experimental data.
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Authors
- Julio A. Cordioli - Federal University of Santa Catarina (UFSC).
- Francisco Klug - Federal University of Santa Catarina (UFSC).
- Samir N. Y. Gerges - Federal University of Santa Catarina (UFSC).
- Marcelo Santos - Empresa Brasileira de Aeronáutica S.A (EMBRAER).
- Rafael de Mello - Empresa Brasileira de Aeronáutica S.A (EMBRAER).
Citation
Cordioli, J., Klug, F., Gerges, S., Santos, M. et al., "SEA modeling and experimental validation of structure-borne noise paths in an aircraft fuselage," SAE Technical Paper 2008-36-0066, 2008, https://doi.org/10.4271/2008-36-0066.Also In
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