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SEA in Vehicle Development Part II: Consistent SEA Modeling for Vehicle Noise Analysis
Technical Paper
2003-01-1547
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper, a model condensation technique is developed to ensure consistent modeling of STL (Sound Transmission Loss) between coarse and detailed SEA model. In the Performance-Based coarse SEA Model, the component level performance (STL and absorption) is assigned to each path, which comes from various ways including detailed analytical SEA model. From the detailed SEA model for the component or even the whole vehicle, the equivalent performance data needs to be condensed and extracted for the coarse model. The condensation theory for equivalent STL is presented in this paper. The extra work needed to apply this technique to detailed SEA model is negligible by using AutoSEA script. An example for condensation of a detailed component model is given at the end. Comparison between the detailed analytical SEA model and the coarse SEA Model is consistent.
Authors
Citation
Zhang, Q., Wang, D., Parrett, A., and Wang, C., "SEA in Vehicle Development Part II: Consistent SEA Modeling for Vehicle Noise Analysis," SAE Technical Paper 2003-01-1547, 2003, https://doi.org/10.4271/2003-01-1547.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15
References
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- Guyan R J Reduction of stiffness and mass matrices AIAA Journal 3 280 1965
- Vibro-Acoustic Sciences AutoSEA 2 User's Manual 2002
- Vibro-Acoustic Sciences AutoSEA 2 Quick Script User's Guide 2002