Experimental and Numerical Comparison of the Acoustic Performance of the Air Filter Box of a SI-ICE 2015-24-2527
In an Internal Combustion Engine, the design of the intake system is a very critical aspect since it affects both the engine power output and noise emissions at the intake side. In particular, downsized VVA engines typically produce higher gas-dynamic noise levels since, due to the intake line de-throttling at part-load, a less effective attenuation of the pressure waves is realized. In this work, the acoustic performance of the intake air filter of a commercial VVA engine is numerically and experimentally analyzed. In particular, a FEM model of the system is realized in order to compute the Transmission Loss (TL) parameter of the base device. The numerical analysis accounts of fluid-structure interaction, which gives the possibility to determine the effect of structure participation on the TL profile. Contemporarily, the experimental tests are performed on an acoustic test bench based on the multi-microphone technique for the evaluation of the acoustic parameters. Numerical outcomes are compared with experimental findings, showing a very good correlation.
Citation: Siano, D., Ferrara, G., Lenzi, G., D'Agostino, D. et al., "Experimental and Numerical Comparison of the Acoustic Performance of the Air Filter Box of a SI-ICE," SAE Int. J. Engines 8(5):2368-2378, 2015, https://doi.org/10.4271/2015-24-2527. Download Citation
Daniela Siano, Giovanni Ferrara, Giulio Lenzi, Danilo D'Agostino, Andrea Fioravanti
Istituto Motori CNR, Univ of Florence, Univ of Naples
12th International Conference on Engines & Vehicles
SAE International Journal of Engines-V124-3, SAE International Journal of Engines-V124-3EJ