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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: Murray, M.T.
Article Type: Research Article
Abstract: The basic equations of lifting surface theory are derived and used to provide methods for the design and evaluation of propellers. For the design calculation, the method requires as data the number of blades and the blade outline and thickness distribution, the wake inflow pattern and advance ratio, and the required thrust together with the shape of the circulation distribution over the blade surface; the method will then yield a value of the torque required, and also the blade pitch angle distribution and the distribution of camber, cavitation number and actual circulation values over the blade surface. For the evaluation …calculation, the method requires full details of the propeller and operating conditions, and will yield thrust and torque values and also surface distributions of circulation value and cavitation number. The treatment includes the case of a pair of contra-rotating propellers, and the similar case of a rotor-stator combination. The method will treat straight or skewed propellers. The numerical techniques used in the calculations are described. Some information is also given about the KDF9 computer program which was written to carry out the computation. Numerical examples are presented. Show more
Citation: International Shipbuilding Progress, vol. 14, no. 160, pp. 433-451, 1967
Authors: Visser, N.J.
Article Type: Research Article
Abstract: The measurement of the axial stiffnesses of the cranks of four full scale crankshafts, supported by the engine main bearings, is described. The results are discussed and compared with those of the calculations using six published formulae. The relationship between the coefficients and the angles of adjacent cranks, or the “mean” crank angle, is investigated. The experimental results are verified with the theoretically determined shear force moments for axially loaded adjacent cranks. The experimentally and theoretically determined stiffnesses are compared and finally proposals are made for future work.
Citation: International Shipbuilding Progress, vol. 14, no. 160, pp. 452-466, 1967
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