A Hybrid Wave Based - Modally Reduced Finite Element Method for the Efficient Analysis of Low- and Mid-frequency Car Cavity Acoustics 2009-01-2214
This paper presents a newly developed hybrid simulation technique for uncoupled acoustic analysis of interior cavities. This method applies a Wave Based model for a large, geometrically simple portion of the acoustic cavity. The superficial details of the problem domain are modeled using a modally reduced finite element model. The resulting hybrid model benefits from the computational efficiency of the Wave Based Method, while retaining the Finite Element Method's ability to model the actual geometry of the problem in great detail. Application of this approach to the analysis of a moderately simplified acoustic car cavity shows the improved computational efficiency as compared to classical finite element procedures and illustrates the potential of the hybrid method as a powerful tool for the analysis of three-dimensional interior acoustic systems.
Citation: Van Genechten, B., Pluymers, B., Vandepitte, D., and Desmet, W., "A Hybrid Wave Based - Modally Reduced Finite Element Method for the Efficient Analysis of Low- and Mid-frequency Car Cavity Acoustics," SAE Int. J. Passeng. Cars – Mech. Syst. 2(1):1494-1504, 2009, https://doi.org/10.4271/2009-01-2214. Download Citation
Bert Van Genechten, Bert Pluymers, Dirk Vandepitte, Wim Desmet
Katholieke Universiteit Leuven
SAE 2009 Noise and Vibration Conference and Exhibition
SAE International Journal of Passenger Cars - Mechanical Systems-V118-6EJ, SAE International Journal of Passenger Cars - Mechanical Systems-V118-6