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International Shipbuilding Progress - Volume 25, issue 285

Purchase individual online access for 1 year to this journal.

Price: EUR 95.00
ISSN 0020-868x (P)
ISSN 1566-2829 (E)

Impact Factor 2024: 0.6

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.

Prediction of propeller induced ship vibration: some structural aspects

Authors: Liepins, Atis A.

Article Type: Research Article

Abstract: Described are some structural aspects of a finite element model used in the design stage to predict vibration levels of a 150,000 SHP triple screw, high speed trailership. The mode shapes of the model show that at blade frequencies of operating RPM the hull does not vibrate as a beam in bending, shearing and twisting, but rather the decks and double bottom move with different wave lengths, amplitudes and phases. Hull flexibility can significantly affect the transverse vibration frequencies of propulsion shafts. The response of the model shows the importance of detuning of propulsion system resonant frequencies from operating RPM. … Show more

DOI: 10.3233/ISP-1978-2528501

Citation: International Shipbuilding Progress, vol. 25, no. 285, pp. 111-121, 1978

Price: EUR 27.50

Statistical data for the extrapolation of model performance tests

Authors: Holtrop, J.

Article Type: Research Article

DOI: 10.3233/ISP-1978-2528502

Citation: International Shipbuilding Progress, vol. 25, no. 285, pp. 122-126, 1978

Price: EUR 27.50

Calculation of non-conservative stability problems using “analytical” finite elements

Authors: Lehmann, E. | Fricke, W.

Article Type: Research Article

Abstract: The calculation of non-conservative stability problems is feasible by using the “kinetic stability criterion” according to Ziegler [1] . This means that a natural frequency analysis is performed at variable non-conservative load for obtaining evidence on the stability of the system. Solutions are found either for relatively simple systems by solving the differential equation being valid over the entire range of calculation ([2] , [3] , [4] , [5] , [6]) or for more complicated systems by approximating with finite elements on the basis of hermitical polynominals [7] . In this paper, however, non-conservative stability problems are treated with “analytical” … Show more

DOI: 10.3233/ISP-1978-2528503

Citation: International Shipbuilding Progress, vol. 25, no. 285, pp. 127-137, 1978

Price: EUR 27.50
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