CALCULATION OF STRUCTUREBORNE NOISE TRANSMISSION IN SHIPS USING THE "STATISTICAL ENERGY ANALYSIS" APPROACH

Although it is possible to calculate the expected structureborne sound transmission through a ship structure using empirically based calculation models, this is, in principle, a very conservative method which does not take into consideration individual differences in the steel construction of the vessel. This paper discusses the possibility of calculating the expected vibration amplitude distribution throughout a ship's structure with a higher degree of accuracy, using a "statistical energy analysis (SEA)" approach. An expample is given of such a calculation model in which the structure is assumed to consist of combinations of plates joined in either T-junctions, L-junctions or +-junctions. Results of such a SEA-calculation for a multi-element ship-like structure are given. The calculation results are compared with results of vibration distribution measurements on the corresponding prototype structure. Order from: BSRA as No. 48,245.

• Supplemental Notes:
  • Proceedings of International Symposium on Shipboard Acoustics held of Noordwijkerhout, September 6-10, 1976.
• Corporate Authors:

  Technisch Physische Dienst TNO-TH

  Stieltjesweg 1, Postbus 155
  Delft 2208,   Netherlands 
• Authors:
  • Jensen, J J
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Measurement; Noise; Ships; Sound transmission; Statistical analysis; Structural analysis; Vibration
• Uncontrolled Terms: Noise measurement; Ship noise
• Old TRIS Terms: Structural vibration; Structure-borne noise; Vibration measurement
• Subject Areas: Data and Information Technology; Environment; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00177224
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM