Acoustic time histories from vibrating surfaces of a diesel engine

An experiment on a diesel engine provides for validation of a method that retrieves source strength spectra, source strength time histories and sound pressure time histories of the engine's complex partial sources. The method is based on empirical transfer function measurements and inverse matrix calculations briefly described in the article. Different simplifying source models were selected by comparison of calculated and measured auto spectra. The results show: (1) indication of time efficient measurements of source strength spectra, (2) the importance of correct source models in the case of separated source strength time histories, and (3) spectra of separated sound pressure time histories. Listening tests reported that it is possible to detect well differentiated sounds of the partial sources as a result of the method. (A) "Reprinted with permission from Elsevier".

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0003682X
• Authors:
  • FRENNE, N
  • JOHANSSON, O
• Publication Date: 2006-3

Language

• English

Media Info

• Pagination: 230-48
• Serial:
  • Applied Acoustics
  • Volume: 67
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0003-682X
  • Serial URL: http://www.sciencedirect.com/science/journal/0003682X

Subject/Index Terms

• TRT Terms: Combustion; Diesel engines; Measurement; Motors; Scale models; Sound
• Uncontrolled Terms: Quality
• ITRD Terms: 3860: Combustion; 1314: Diesel engine; 6136: Measurement; 6205: Model (not math); 1334: Motor; 9063: Quality; 6748: Sound
• Subject Areas: Bridges and other structures; Vehicles and Equipment; I90: Vehicles;

Filing Info

• Accession Number: 01019781
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Mar 9 2006 8:13AM