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The journal International Shipbuilding Progress (ISP) was founded in 1954. Each year four issues appear (in April, July, September and December). Publications submitted to ISP should describe scientific work of high international standards, advancing subjects related to the field of Marine Technology, such as:
- Concept development
- General design of ships and offshore objects
- Ship and offshore structural design
- Hydro-mechanics and -dynamics
- Maritime engineering and machinery systems
- Production processes of all types of ships and other objects intended for marine use
- Production technology and material science
- Shipping science, economics, and all directly related subjects
- Ship operations
- Offshore and ocean engineering in relation to the marine environment
- Marine safety
- Efficiency, lifecycle, and environment
- Ice-related aspects for ships and offshore objects.
The contents of the papers may be of a fundamental or of an applied scientific nature and must be of the highest novelty and rigor.
Authors: Cavaleri, L.
Article Type: Research Article
Abstract: The linear and nonlinear approaches to the evaluation of the motion of a spar buoy in regular waves are discussed. Advantages and disadvantages are compared. A nonlinear model used for the design of a meteo-ocean-ographic buoy is described. Its results are compared with experimental data, and the influence of the various nonlinear factors is discussed. Possible extensions of the model are indicated.
Citation: International Shipbuilding Progress, vol. 32, no. 366, pp. 26-32, 1985
Article Type: Research Article
Abstract: A three-parameter extended-Lewis form family is considered and investigated. The parameters used are the half beam to draft ratio λ , the area coefficient σ , and the K B ‾ to draft ratio κ , where K B ‾ is the vertical distance of the centroid of the section from the keel. The region of values λ , σ and κ corresponding to conventional, free of deficiencies, ship-like forms is investigated and determined. Various applications of the extended-Lewis forms to ship hydrodynamics are discussed. It is …demonstrated that the hydrodynamic characteristics (added mass and damping coefficients) of ship-like forms depend considerably on the κ parameter. The effect of the longitudinal K B ‾ distribution of a destroyer-type hull on its seakindliness is also investigated. It is found that to reduce ah motion characteristics over a wide range of ship speeds and seaways, the forebody as well as the afterbody center of buoyancy should be taken as lower as possible (U-shaped sections). The apparent contradiction of this conclusion with previous results is explained. To minimize mean added resistance in head waves the forebody center of buoyancy should be taken as lower as possible, while the afterbody center of buoyancy should be drawn as higher as possible. Show more
Citation: International Shipbuilding Progress, vol. 32, no. 366, pp. 33-43, 1985
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