VIBRATION RESPONSE ON PROPULSION-EFFICIENT CONTAINER VESSELS

In the interest of fuel efficiency, new containerships are being designed with large, slow-running, two-stroke diesel engines and large-diameter propellers. This often results in low-frequency excitation forces of considerable amplitude. To eleminate the risk of excessive vibrations in service, fairly detailed vibration calculations are required in the design phase and using simple well-known design formulas is frequently unsatisfactory. The purpose of this paper is to demonstrate that three-dimensional calculations are necessary to reliably predict vibration behavior for this type of ship. The method is explained and typical calculation results are presented and compared with measurements during sea trials for a 2000-TEU container vessel. It is shown that vibration behavior can be predicted with sufficient accuracy to base design decisions on the results.

• Supplemental Notes:
  • Transactions paper
• Authors:
  • PAYER, H G
  • Asmussen, I
• Publication Date: 1985

Media Info

• Features: References;
• Pagination: 18 p.
• Serial:
  • Society of Naval Architects and Marine Engineers-Transactions
  • Volume: 93
  • Publisher: Society of Naval Architects and Marine Engineers

Subject/Index Terms

• TRT Terms: Alternatives analysis; Calculation; Containerships; Forecasting; Hulls; Measurement; Superstructures; Vibration
• Uncontrolled Terms: Computation
• Old TRIS Terms: Hull vibration; Superstructure vibration
• Subject Areas: Marine Transportation; Planning and Forecasting;

Filing Info

• Accession Number: 00651464
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM