The influence of the propeller emergence on the torque during sailing of a ship on a regular wave

• Autorzy: Szelangiewicz T. , Żelazny K.
• Języki publikacji: EN

Abstrakty

EN

While the ship is sailing on waves the relative motions occur which result in propeller emergence, and as a consequence – propeller thrust reduction which results in a decrease in the ship’s speed. Propeller emergence is also accompanied by the decrease in torque values, with which the propeller affects the propelling engine. The article presents both calculation results and the algorithm for calculating the decrease in torque of the propeller during ship motion on a regular wave.

Słowa kluczowe

EN

ship motion on a regular wave; vertical relative motion; propeller emergence; decrease in torque value of a propeller

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe / Akademia Morska w Szczecinie
• Rocznik: 2013
• Tom: nr 35 (107)
• Strony: 138--143
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Szelangiewicz T.

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

autor

Żelazny K.

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

Bibliografia

• 1. SZELANGIEWICZ T.: Seakeeping in cargo vessels design. 14th International Conference on Hydrodynamics in Ship Design, Szczecin-Międzyzdroje, Poland, September 27–29, 2001, 324–334.
• 2. LUBIENIECKI M.: Wyznaczanie sił hydrodynamicznych generowanych na śrubie w wyniku ruchu na fali. Praca doktorska, Instytut Maszyn Przepływowych PAN, Gdańsk 1996.
• 3. FALTINSEN O.M.: Sea Loads on Ships and Offshore Structures. Cambridge University Press, Cambridge 1990.
• 4. MINSAAS K.J., THON H.J., KAUCZYŃSKI W.: Influence of Ocean Environment on Thruster Performance. Proc. Int. Symp. Propeller and Cavitation, 1986, 124–142.
• 5. SZELANGIEWICZ T., ŻELAZNY K.: Prediction of the influence of emergence of propeller on the propeller thrust reduction during ship navigation on waves. Scientific Journals Maritime University of Szczecin, 2010, 21(93), 10–13.
• 6. SZELANGIEWICZ T., ŻELAZNY K.: The propeller thrust and speed reduction as a result of the propeller emergence on a given ocean route. Scientific Journals Maritime University of Szczecin, 2010, 22(94), 63–66.
• 7. DUDZIAK J.: Teoria okrętu. Fundacja Promocji Przemysłu Okrętowego i Gospodarki Morskiej, Gdańsk 2008.
• 8. SZANTYR J.A.: Method for Analysis of Cavitating Marine Propellers in Non-uniform Flow. Intern. Shipbuilding Progress, Vol. 41, No. 427, 1994.