Pass-by Noise Modelling with Boundary Elements 972014
This paper presents a method for modelling Pass-By Noise from a light weight truck by using Direct and Inverse Boundary Element Techniques.
One of the issues in evaluating Pass-By Noise of a vehicle is to assess the internal noise sources. In the present study, it is assumed that the noise is mainly due to sound radiation from the truck engine. Therefore a proper source model of the engine is derived by using an Inverse Boundary Element scheme involving experimental data and a boundary element model of the engine defined as a set of prescribed acceleration surfaces.
Once the engine noise model has been derived, the Pass-by Noise is computed by using the standard Variational Boundary Element Method as packaged in I-DEAS Vibro-Acoustics of SDRC which includes RAYON-3D solver of STRACO SA. Finally, computed acoustics pressures at standardized Pass-By Noise locations are compared to experimental results.
Citation: Auger, J., Hamdi, M., Amadasi, G., and Gilimondi, E., "Pass-by Noise Modelling with Boundary Elements," SAE Technical Paper 972014, 1997, https://doi.org/10.4271/972014. Download Citation
Author(s):
J. M. Auger, M. A. Hamdi, G. Amadasi, E. Gilimondi
Affiliated:
STRACO S.A., SCS Controlli e sistemi
Pages: 4
Event:
SAE Noise and Vibration Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1997 Noise and Vibration Conference-P-309, SAE 1997 Transactions - Journal of Passenger Cars-V106-6
Related Topics:
Noise
Radiation
Acoustics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
