Sound Package Development for Lightweight Vehicle Design using Statistical Energy Analysis (SEA)
Published June 15, 2015 by SAE International in United States
Annotation of this paper is available
Lightweighting of vehicle panels enclosing vehicle cabin causes NVH degradation since engine, road, and wind noise acoustic sources propagate to the vehicle interior through these panels. In order to reduce this NVH degradation, there is a need to develop new NVH sound package materials and designs for use in lightweight vehicle design.
Statistical Energy Analysis (SEA) model can be an effective CAE design tool to develop NVH sound packages for use in lightweight vehicle design. Using SEA can help engineers recover the NVH deficiency created due to sheet metal lightweighting actions.
Full vehicle SEA model was developed to evaluate the high frequency NVH performance of “Vehicle A” in the frequency range from 200 Hz to 10 kHz. This correlated SEA model was used for the vehicle sound package optimization studies. Full vehicle level NVH laboratory tests for engine and tire patch noise reduction were also conducted to demonstrate the performance of sound package designs on “Vehicle A”.
In this paper, SEA simulation results for vehicle level as well as dash subsystem level and comparison to test data are presented and SEA prediction capability for the sound package development for vehicle design is discussed.
CitationGur, Y., Pan, J., and Wagner, D., "Sound Package Development for Lightweight Vehicle Design using Statistical Energy Analysis (SEA)," SAE Technical Paper 2015-01-2302, 2015, https://doi.org/10.4271/2015-01-2302.
- Gur, Y., Pan, J., Huber, J., and Wallace, J., “MMLV: NVH Sound Package Development and Full Vehicle Testing,” SAE Technical Paper 2015-01-1615, 2015, doi:10.4271/2015-01-1615.
- Gur, Y., Abhyankar, S., and Wagner, D., “Radiating Panel NVH Performance Evaluations for Vehicle Design,” SAE Technical Paper 2013-01-1991, 2013, doi:10.4271/2013-01-1991.
- Gur, Y., Wykoff, R., Nietering, K., and Wagner, D. (2011): “NVH Performance of Lightweight Glazing Materials In Vehicle Design”, Paper # IMECE2012-89439, Proceedings of the ASME 2012 Int. Mech. Eng. Conference, Nov. 9-15, 2012, Houston, TX.