Double-Hull Tanker Legislation An Assessment of the Oil Pollution Act of 1990 (1998) / Chapter Skim
Currently Skimming:
Appendix L
Appendix L
Pages 243-249
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 243... ...
, the Interagency Ship Structure Committee, and the Society of Naval Ar iThe Interagency Ship Structure Committee consists of the following member agencies: American Bureau of Shipping, Defense Research Establishment Atlantic (Canada) , Maritime Administration, Military Sealift Command, Naval Sea Systems Command, Transport Canada, United States Coast Guard.
|
From page 244... ...
The evolving methods are applicable to all types of ship structures, including double hulls. The goals of this research are to allow the designer to evaluate the performance of competing designs in a variety of critical accident scenarios and to refine designs to meet specific performance goals.
|
From page 245... ...
Among the conclusions drawn from the joint Dutch-Japanese research were these: fracture initiation is dominated by the welds and is poorly characterized; the hydrodynamics of both ships during collision must be modeled correctly if penetration and collision forces are to be predicted accurately; and a sizable fraction of the energy dissipated in a collision goes into wave generation. Structural Responses to Groundings Most aspects of structural failure in tanker grounding incidents can be analyzed by the same methods used to analyze ship collisions.
|
From page 246... ...
The tearing energy for steel plate must be measured independently in a simulated tearing test. Then, the length of the underside rupture is estimated by accounting for the combined energy dissipated in the grounding from tearing and from plastic deformation of the hull during interaction with the protrusion, with due allowance for other mechanisms of energy loss.
|
From page 247... ...
The unidirectionally stiffened structure improves construction productivity by reducing the number of structural joints and by allowing maximum use of automatic welding. A disadvantage of this design is that a unidirectional structure requires smaller tanks than a conventional tanker structure, thus increasing the subdivisions and the weight of steel in the vessel.
|
From page 248... ...
double-hull tanker design. However, the "superecological E3" tanker design has small cargo tanks and double-hull dimensions that were optimized to reduce the probability of oil spills using statistical data on damage extent and damage locations on the hull.
|
From page 249... ...
1994. Full-scale six degrees of freedom motion measurements of two colliding 80 m long inland waterway tankers.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.