APPLICATION OF CROSS-CORRELATION TECHNIQUE TO THE CASING NOISE INVESTIGATION OF A HIGH POWERED DIESEL ENGINE

The importance of structural vibration related noise in high-powered diesel engines is discussed in view of its significant contribution to the overall engine noise generation. A cross-correlation technique for noise investigation due to structural vibrations is briefly described and then applied successfully to GM 645 E Series 20 cylinder turbo-charged diesel engine operating in a semi-reverberant environment of a test cell. Implications of cross-correlograms and cross-correlation coefficients have been discussed. This technique can be applied to other vibrating structures for establishing an order of importance of elements of the structure in a noise abatement program.

  • Supplemental Notes:
    • This paper was contributed by the Diesel and Gas Engine Power Division of the ASME for presentation at the Winter Annual Meeting, Houston, Texas, November 30-December 4, 1975.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • Srivastava, N S
    • Kumar, S
  • Publication Date: 1975-5

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 8 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128623
  • Record Type: Publication
  • Source Agency: American Society of Mechanical Engineers
  • Report/Paper Numbers: 75-WA/DGP-3
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM