An approximate method for calculation of mean statistical value of ship service speed on a given shipping line, useful in preliminary design stage

• Autorzy: Żelazny K.
• Języki publikacji: EN

Abstrakty

EN

During ship design, its service speed is one of the crucial parameters which decide on future economic effects. As sufficiently exact calculation methods applicable to preliminary design stage are lacking the so called contract speed which a ship reaches in calm water is usually applied. In the paper [11] a parametric method for calculation of total ship resistance in actual weather conditions (wind, waves, sea current), was presented. This paper presents a parametric model of ship propulsion system (screw propeller - propulsion engine) as well as a calculation method, based on both models, of mean statistical value of ship service speed in seasonal weather conditions occurring on shipping lines. The method makes use of only basic design parameters and may be applied in preliminary design stage.

Słowa kluczowe

EN

service speed; shipping lines; preliminary design

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: nr 1
• Strony: 28—35
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Żelazny K.

• West Pomeranian University of Technology Faculty of Maritime Technology and Transport, 41 Piastów Ave., 71-065 Szczecin POLAND

Bibliografia

• 1. Abramowski T.: Elements of multidisciplinary optimization of technical and economic indices in preliminary concurrent design of transport ships (in Polish). Publishing House of West Pomeranian University of Technology in Szczecin, Szczecin, 2011
• 2. Holtrop J.: A Statistical Re-analysis of Resistance and Propulsion Data, International Shipbuilding Progress, No. 363, 1984, pp. 272 ÷ 276
• 3. Holtrop J.: A Statistical Resistance Prediction Method with a Speed Dependent Form Factor, Proceedings of the 17th Session BSHC, Varna 17-22 Oct. 1988, Vol. 1, pp. 3.1 ÷ 3.7
• 4. Holtrop J.: A statistical analysis of performance test result, International Shipbuilding Progress, Vol. 24, No. 270, 1977, pp. 23 ÷ 28
• 5. Holtrop J., Mennen G. G. J.: An Approximate Power Prediction Method, International Shipbuilding Progress, Vol. 29, No. 335, 1982, pp. 166 ÷ 170
• 6. Szelangiewicz T., Żelazny K.: 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, No. 4(50), Vol. 13, 2006, pp. 23 ÷ 31,
• 7. Szelangiewicz T., Żelazny K.: 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, No 1,Vol. 14, 2007, pp. 28 ÷ 32,
• 8. Szelangiewicz T., Żelazny K.: 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, No 2, Vol. 14, 2007, pp. 27 ÷ 32
• 9. Szelangiewicz T., Wiśniewski B., Żelazny K.: Forecasting operating speed of the ship in the selected weather conditions, EXPLO-SHIP 2014, Zeszyty Naukowe ( Scientific bulletins) No. 38(110),Szczecin Maritime University, Szczecin 2014, pp. 89 ÷ 98
• 10. Szelangiewicz T., Wiśniewski B., Żelazny K.: The influence of wind, wave and loading condition on total resistance and speed of the vessel, Polish Maritime Research, No 3(83), Vol. 21, 2014, pp. 61 ÷ 67
• 11. Żelazny K.: A method for determination of service speed of transport ships in statistical weather conditions occurring on shipping lines , useful in preliminary design stage ( in Polish ). A monograph ( to be published in 2015 by Publishing House of West Pomeranian University of Technology in Szczecin )