This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Application of Virtual SEA for the Prediction of Acoustic Performance of Cockpit
Technical Paper
2009-01-0767
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Not only for the carmakers but also for the automotive parts suppliers, cost reduction and short development cycle are strongly required to survive in highly competitive market. The simulation models predicting acoustic performance of cockpit module at early design stage could be a part of time-saving and cost-effective solution for those demands. Via experimental, analytical, and virtual statistical energy analysis (SEA) approach, the simulation models of cockpit module predicting acoustic performance are developed and validated. Recently proposed virtual SEA using FE models from crash analysis are useful to reduce the ambiguity of SEA modeling which could make a big difference in the result. The SEA models simulate the transmission loss tests of a cockpit module attached with several kinds of acoustical treatments between two connected reverberation chambers. Above 1kHz, where the SEA assumption of perfect diffusion are verified in the internal cavity of the cockpit, the SEA model gives good prediction of measured TL.
Recommended Content
Authors
Citation
Jeong, W. and Park, K., "Application of Virtual SEA for the Prediction of Acoustic Performance of Cockpit," SAE Technical Paper 2009-01-0767, 2009, https://doi.org/10.4271/2009-01-0767.Also In
References
- Gagliardini, L. Houillon, L. Borello, G. Petrinelli, L. “Virtual SEA-FEA-based Modeling of structure-borne noise,” Sound and Vibration Magazine January 2005
- Borello, G. “From Finite Element Modeling to SEA Using Virtual SEA,” Wespac2006 Seoul, Korea 2006
- Lyon, R. H. Statistical Energy Analysis of Dynamical Systems MIT press 1975