Powertrain Acoustic Characterization at High Frequencies: Acoustic Source Modeling Based on Sound Intensity Measurements

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.

• Record URL:
  • https://doi.org/10.4271/2003-01-1457
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Bousseau, Y
  • Gagliardini, L
• Conference:
  • SAE 2003 Noise & Vibration Conference and Exhibition
  • Location: Grand Traverse Michigan, United States
  • Date: 2003-5-5 to 2003-5-8
• Publication Date: 2003-5-5

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Cartography; Gasoline; Noise; Pitch (Acoustics); Power trains; Radiation hazards; Simulation
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01802454
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2003-01-1457
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:24AM