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The influence of ship size and propeller parameters on engine workload during ship motion on regular wave

Żelazny K.

Zeszyty Naukowe Akademii Morskiej w Szczecinie

2015

nr 41 (113)

52--57

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 marine engine. The article presents a simplified method for calculating the decrease in torque of the propeller during ship motion on a regular wave together with the obtained results for various ship sizes and propellers.

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

Szelangiewicz T., Żelazny K.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2013

nr 35 (107)

138--143

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.

The influence of propeller emergence on the load of a marine engine of a ship sailing on irregular wave

Szelangiewicz T., Żelazny K.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2013

nr 35 (107)

144--148

When a ship is saling 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 marine engine. The article presents both calculation results and the algorithm for calculating the decrease in torque of the propeller during ship motions on irregular wave.