REDUCING ACCOMMODATION NOISE DUE TO TRANSVERSE THRUSTERS IN LARGE SHIPS

The large, sea-going drilling ship Pelican is fitted with two stern and three bow thrusters which are a considerable source of noise during operations. The bow thrusters are situated in way of the accommodation presenting a serious noise nuisance to the off-duty members of the crew. In order to ascertain the efficiency of the acoustical countermeasures, measurements of structure-borne noise were made during the operation of the ship's thrusters. Equivalent source levels were obtained for a number of positions on tweendeck 3, the results being plotted in a series of graphs, showing, inter alia, the effects of isolating the thrusters and of insulating the cabins.

• 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:
  • Buiten, J
• Publication Date: 1974

Media Info

• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Bow thrusters; Crew comfort; Damping (Engineering); Measurement; Noise; Noise control; Noise sources; Ships; Structural analysis
• Uncontrolled Terms: Noise measurement; Noise reduction; Ship noise
• Old TRIS Terms: Structure-borne noise
• Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00179229
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Aug 19 1978 12:00AM