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The journal International Shipbuilding Progress (ISP) was founded in 1954. Each year two issues appear (in March and September). 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: van Manen, J.D.
Article Type: Research Article
DOI: 10.3233/ISP-1959-65801
Citation: International Shipbuilding Progress, vol. 6, no. 58, pp. 233-248, 1959
Authors: Boericke Jr., Harold
Article Type: Research Article
Abstract: A sharp increase in the wave resistance has limited speeds of full-bodied surface vessels to a practical maximum which has sometimes been called the “wave barrier”. Two approaches towards increasing the top speed of displacement type surface ships are investigated herein. The first approach is that of keeping Froude number constant and increasing length. The second approach, involving operation at high Froude numbers, is emphasized. This involves a study of minimum wave resistance at Froude numbers greater than 0.35. Principles for minimizing wave resistance are proposed. The wave resistance of certain elementary shapes is reviewed, and several forms likely to …have a minimum wave resistance are discussed with reference to the principles proposed, and with reference to operation in rough seas. Heavy displacement type hull forms exist which “break the wave barrier” reaching Froude numbers greater than 0.9 (speed-length ratios greater than 3.0), thus multiplying their speed capabilities. The form characteristics which make for a higher speed may, within limits, also make for a maximum propulsive efficiency and a minimum motion in a seaway. The concept of increasing depth instead of increasing length in order to increase speed and seaworthiness is also briefly investigated. Show more
DOI: 10.3233/ISP-1959-65802
Citation: International Shipbuilding Progress, vol. 6, no. 58, pp. 249-264, 1959
Authors: Anneveld, A.S.
Article Type: Research Article
Abstract: Although a rather abundant litterature on the subject of free piston engine installations exists this mainly concerns applications to stationary installations and it may be useful therefore to survey the relative properties of these engines as marine propulsion prime movers. After a short definition of a free piston engine installation, followed by a brief historical review and a more detailed description of the gasifyer, the paper summarizes various basic differences compared with more conventional machinery in respect of maintenance, running costs, space and weight requirements and future developments. Various design lay-outs are given.
DOI: 10.3233/ISP-1959-65803
Citation: International Shipbuilding Progress, vol. 6, no. 58, pp. 265-291, 1959
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