Browse Publications Technical Papers 2003-01-1457
2003-05-05

Powertrain Acoustic Characterization at High Frequencies: Acoustic Source Modeling Based on Sound Intensity Measurements 2003-01-1457

Predicting the propagation of air-borne noise radiated by the powertrain at high frequencies requires acoustic power data for source modeling. This paper proposes a new model of source based on an acoustic intensity mapping in an anechoic test-bench. Given an energy propagation model, it is possible to back-propagate acoustic intensity data to a model of powertrain, by solving an inverse problem. Application of the method to a 2.0L gasoline powertrain has led to convincing results between 500 and 5,000 Hz, and most of the radiation patterns of the powertrain are well represented in space and frequency.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Combustion on Radiation Noise and Mount Vibration from a V8 Gasoline Engine

2003-01-1730

View Details

TECHNICAL PAPER

Prediction of Vehicle Radiated Noise

971985

View Details

TECHNICAL PAPER

Concept Phase Powertrain Development for NVH Using the Optimization Technique

2015-01-2294

View Details

X