STRUCTUREBORNE SOUND TRANSMISSION IN SHIPS

Model experiments have been carried out to investigate the influence of different structural details on the total vertical transmission of noise in a ship's hull from the machinery spaces to cabins on the upper decks. The model is an idealised 1:5 replica of a cross-section through the engine room, casing and deckhouse of a 50,000-dwt bulk carrier, conventionally built with deckhouse above the engine room. Six built-up stages have been investigated, each stage corresponding to a different transmission path connecting tanktop and main deck. Preliminary results indicate that the build-up of the structure does not affect the structure-borne transmission through the hull to any great extent because of the greater contribution of longitudinal waves.

• Supplemental Notes:
  • Presented at "Inter-Noise 74", Washington, September 30-October 2, 1974.
• Corporate Authors:

  Institute of Noise Control Engineering

  Iowa State University, 210 Marston Hall
  Ames, IA  United States  50011-2153
• Authors:
  • Jensen, J O
• Publication Date: 1974

Media Info

• Features: References;
• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Engine rooms; Hulls; Machinery; Measurement; Noise; Ships; Sound transmission; Structural analysis; Vibration
• Uncontrolled Terms: Noise measurement; Ship noise
• Old TRIS Terms: Engine room noise; Hull vibration; Machinery noise; Sound radiation; Structural vibration; Structure-borne noise
• Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00179230
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Aug 19 1978 12:00AM