CORRELATION OF NOISE AND BLADE SURFACE PRESSURE IN AUTOMOTIVE ENGINE-COOLING FAN

Automotive engine cooling fan is one of the major sources of automobile noise. The most annoying features can be characterized by the discrete frequency noise at the blade passing frequency. These tonal noises are generated by blade interaction with inflow and physical configuration such as shroud. Measurements of the blade surface pressure on the rotating blade are conducted and correlated with the far field sound pressure. The results show good coherence between surface and sound pressure. Power spectral density of the surface pressure reveals that there exists some broad hump, which associated with broadband noise. (A) For the covering noise see ITRD E113232.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/980655414
• Corporate Authors:

  CONGRESS SECRETARIAT

  VOORWEG 105-A
  ZOETERMEER,   Netherlands  NG 2715
• Authors:
  • CHO, K
  • Lee, S W
  • Park, C S
  • PARK, T
• Conference:
  • INTER-NOISE 2001 - ABSTRACTS FROM INTERNATIONAL CONGRESS AND EXHIBITION ON NOISE CONTROL ENGINEERING
  • Location: THE HAGUE , Netherlands
  • Date: 2001-8-27 to 2001-8-30
• Publication Date: 2001

Language

• English

Media Info

• Pagination: p. 215-8

Subject/Index Terms

• TRT Terms: Conferences; Cooling; Design; Motors; Noise; Prevention; Vehicles
• ITRD Terms: 8525: Conference; 6711: Cooling (mater); 9011: Design (overall design); 1334: Motor; 2492: Noise; 9149: Prevention; 1255: Vehicle
• Subject Areas: Design; Environment; Security and Emergencies; Vehicles and Equipment;

Filing Info

• Accession Number: 00927085
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 9-806554-1-4
• Files: ITRD
• Created Date: Jul 8 2002 12:00AM