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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: Greenspon, Joshua E.
Article Type: Research Article
Abstract: Approximate formulas are given for the determination of natural frequencies and maximum deflections and stresses in rectangular plates subjected to normal transient loading as well as to static loading. The stresses and deflections resulting from dynamic loads are obtained by the application of a “load factor” to the values computed for a static load. The appendixes give the small-deflection theory of forced vibration of plates with approximate solutions for plates with edges which are clamped, simply supported, or free. It is assumed that the plate deflection may be expressed as a series, each term having the form of the normal-mode …function of a uniform beam. Show more
Citation: International Shipbuilding Progress, vol. 3, no. 18, pp. 63-76, 1956
Article Type: Research Article
Abstract: This paper deals with the resistance- and thrust-measurements on a series of nine geometricall similar Victory ship models, ranging in scale from 160 to 18, and on a Victory model boat of scale 6. The first part of the paper gives a description of the ship, the propeller, the models, the test apparatus, the test performance, the instrument calibration and the necessary corrections. The measured resistance and thrust values of the model boat are correlated with the results of the tests with the models using three methods, i.e. the Schoenherr, the Hughes, and the Lap-Troost extrapolators. The …results of experiments for the determination of the wall-interference are given. These experiments are on the principle of the “image method”. An attempt is made to analyse the thrust deduction factors as a function of the Reynolds number. Conclusions and a programme for the continuation of the tests are presented at the end of the paper. Show more
Citation: International Shipbuilding Progress, vol. 3, no. 18, pp. 77-108, 1956
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