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Title
An approximate method for calculating the mean statistical service speed of container ships on a given shipping line and its application in preliminary design

ISSN printed: 1733-8670, ISSN on-line: 2392-0378
Szelangiewicz, Tadeusz1; Żelazny, Katarzyna2
URI: https://repository.am.szczecin.pl/handle/123456789/1177
2015-12-10
During ship design, service speed is one of the crucial parameters in determining the operational economy of the vessel. As sufficiently exact calculation methods applicable to preliminary design stage are lacking, the so-called contract speed, the speed which a ship reaches in calm water, is usually cited. Żelazny (2015) developed a parametric method for calculating total ship resistance under actual weather conditions (wind, waves, sea current). This paper presents a parametric model of a ship’s propulsion system (screw propeller – propulsion engine) as well as a method, based on both the resistance and propulsion system models, of calculating the mean statistical value of a ship’s service speed under the seasonal weather conditions occurring on shipping lines. The method makes use only of basic design parameters, and may be applied in preliminary design phase of container ships.
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  5. HOLTROP, J. & MENNEN, G.G.J. (1982) An Approximate Power Prediction Method. International Shipbuilding Progress. 29. 335. pp. 166–170.,
  6. SZELANGIEWICZ, T. & ŻELAZNY, K. (2006) Calculation of the Mean Long-Term Service Speed of Transport Ship. Part I: Resistance of Ship Sailing on Regular Shipping Route in Real Weather Conditions. Polish Maritime Research. 4(50), 13. pp. 23–31.,
  7. SZELANGIEWICZ, T. & ŻELAZNY, K. (2007a) Calculation of Mean Long-Term Service Speed of Transport Ship, Part II: Service Speed of Ship Sailing on Regular Shipping Route in Real Weather Conditions. Polish Maritime Research. 1. 14. pp. 28–32.,
  8. SZELANGIEWICZ, T. & ŻELAZNY, K. (2007b) Calculation of Mean Long-Term Service Speed of Transport Ship, Part III: Influence of Shipping Route and Ship Parameters on its Service Speed. Polish Maritime Research. 2. 14. pp. 27– 32.,
  9. SZELANGIEWICZ, T., WIŚNIEWSKI, B. & ŻELAZNY, K. (2014a) Forecasting operating speed of the ship in the selected weather conditions. Zeszyty Naukowe Akademii Morskiej w Szczecinie. 8(110). pp. 89–98.,
  10. SZELANGIEWICZ, T., WIŚNIEWSKI, B. & ŻELAZNY, K. (2014b) The influence of wind, wave and loading condition on total resistance and speed of the vessel. Polish Maritime Research. 3(83), 21. pp. 61–67.,
  11. ŻELAZNY, K. (2015) A method for determination of service speed useful in the preliminary design of cargo vessels under statistical weather conditions occurring on shipping route. Szczecin: Publishing House of West Pomeranian University of Technology in Szczecin.,

Title

An approximate method for calculating the mean statistical service speed of container ships on a given shipping line and its application in preliminary design

Pages

34-42

Figures

5

Tables

11

ISSN printed

1733-8670

ISSN on-line

2392-0378

DOI

10.17402/054

Type

Original scientific article

Journal

44 Scientific Journals of the Maritime University of Szczecin, no. 44 / 2015

Publisher

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Copyright Holder

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Published

2015-12-10

Recieved

2015-10-16

Accepted

2015-11-11

Funding

No data

Keywords

weather conditions, propulsion system, container ship, preliminary design, service speed, shipping lines

URI:

https://repository.am.szczecin.pl/handle/123456789/1177

Language

English

Authors

Szelangiewicz, Tadeusz1; Żelazny, Katarzyna2

Affiliation

1 Maritime University of Szczecin, Faculty of Navigation 1–2 Wały Chrobrego St., 70-500 Szczecin, Poland, tadeusz.szelangiewicz@zut.edu.pl
2 West Pomeranian University of Technology Szczecin, Faculty of Maritime Technology and Transport 41 Piastów Avenue, 71-065 Szczecin, Poland, katarzyna.zelazny@zut.edu.pl

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