NEW APPROACH FOR THE DESIGN AND EVALUATION OF DOUBLE HULL TANKER STRUCTURES

This paper describes the "SafeHull" rule restatement phase of the ABS RULES 2000 project undertaken by the American Bureau of Shipping (ABS) to develop structural criteria for double hull tankers, based on a first principles approach. The paper discusses the philosophical concepts of the development, the specified load components and loading cases, and is followed by a review of the development of the strength criteria and strength assessment with respect to the dominant failure modes. The load components considered in the load criteria consist of still water and cargo loading, external hydrodynamic loading, internal hydrostatic and dynamic tank cargo loading, as well as sloshing load. The dominant failure modes include yielding, buckling and fatigue. The strength requirements developed in the SafeHull System focus on both initial design and design evaluation. Comparisons of the newly developed requirements with service experience are also given to illustrate the application of the criteria.

• Supplemental Notes:
  • SNAME, Centennial Meeting; 15-17 Sept 1993; New York, USA. Preprints. Ppr n 9 [22 p, 16 ref, 10 tab, 4 fig]
• Authors:
  • Chen, H H
  • Jan, H Y
• Publication Date: 1993

Language

• English

Subject/Index Terms

• TRT Terms: Design; Tankers
• Uncontrolled Terms: Design criteria
• Old TRIS Terms: Double hulls; Structural strength
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00706655
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM