This report covers the prototype phase of an OPNAV sponsored hearing conservation program. The objective of the prototype phase was to demonstrate the feasibility of reducing machinery space noise levels sufficiently to comply with BUMED/OSHA hearing damage risk criteria. The USS ELMER MONTGOMERY (FF 1082), the designated prototype ship, was subjected to comprehensive underway and dockside diagnostic noise testing. The tests indicated that even at nominal 15 to 20 knot cruising speeds, noise levels at many manned locations in the engine room and fire room exceeded the BUMED 90 dBA hearing damage risk criterion. Conceptual approaches for noise control treatment were provided to the naval shipyard which developed the design for the prototype treatments. Subsequent noise trials conducted to assess the performance of the prototype treatments indicated the predicted noise reduction from the treatments was achieved. Noise trials were also conducted on a second ship in the class, the USS DOWNES (FF 1070), to insure that differences in equipment manufacture or shipyard construction practices did not result in significant differences in the noise environment within the FF 1052 class machinery spaces. The report concludes with a recommended noise control package for ships of the FF 1052 class.

  • Corporate Authors:

    Bolt, Beranek and Newman, Incorporated

  • Authors:
    • Lehr, J
    • Nelson, D
    • Sutterlin, M
  • Publication Date: 1976-9

Media Info

  • Pagination: 163 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145736
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: BBN-322 Tech Rpt.
  • Contract Numbers: N00014-75-C-0057
  • Files: TRIS
  • Created Date: Jan 16 1977 12:00AM