STATE-OF-THE-ART OF TURBOFAN ENGINE NOISE CONTROL

The technology of turbofan engine noise reduction is surveyed. Specific topics discussed include: (1) new fans for low noise; (2) fan and core noise suppression; (3) turbomachinery noise sources; and (4) a new program for improving static noise testing of fans and engines.

• Supplemental Notes:
  • Conf-Presented at Noise-Con 77, Hampton, VA., 17-19 Oct. 1977; Cosponsored by Inst. Of Noise Control Eng.
• Corporate Authors:

  Department of the Navy

  The Pentagon
  Washington, DC  United States  20350
• Authors:
  • Jones, W L
  • GROENEWEG, J F
• Publication Date: 1977-10

Media Info

• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Engines; Fans; Noise; Noise control; State of the art; Technology assessment; Turbofan engines; Vehicle design
• Uncontrolled Terms: Noise reduction
• Old TRIS Terms: Engine design; Engine noise; Fan noise
• Subject Areas: Aviation; Design; Environment; Vehicles and Equipment;

Filing Info

• Accession Number: 00174579
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-TM-73734
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM