Wyniki wyszukiwania - BazTech

1

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

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2015

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nr 41 (113)

52--57

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 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.

2

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

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2013

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nr 35 (107)

138--143

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.

3

The propeller thrust and speed reduction as a result of the propeller emergence on a given ocean route

Szelangiewicz T., Żelazny K.

Zeszyty Naukowe / Akademia Morska w Szczecinie

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2010

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nr 22 (94)

63-66

EN

During ship navigation on waves its relative motions occur which result in propeller emergence. This, in consequence, causes the propeller thrust drop. The article presents the results of calculations of the propeller thrust drop and ship service speed reduction on a preset ocean route where specific mean statistic weather parameters occur.

PL

Podczas pływania statku na fali powstają m.in. ruchy względne, które powodują wynurzanie się śruby napędowej, a w konsekwencji spadek naporu. W artykule przedstawiono algorytm obliczania spadku naporu śruby w wyniku kołysań statku na fali o zadanych parametrach: wysokość znacząca Hs, okres T1 i kierunek geograficzny

4

Prediction of the influence of propeller emergence on its thrust reduction during ship navigation on waves

Szelangiewicz T., Żelazny K.

Zeszyty Naukowe / Akademia Morska w Szczecinie

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2010

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nr 21 (93)

83-87

EN

During ship's navigation on waves some relative motions occur resulting in propeller emergence, which in consequence reduces the propeller thrust. The article presents an algorithm for calculating the propeller thrust reduction as a result of ship motions on waves. The algorithm has preset parameters: significant wave height Hs, period T1 and geographical direction.

PL

Podczas pływania statku na fali powstają m.in. ruchy względne, które powodują wynurzanie się śruby napędowej, a w konsekwencji spadek naporu. W artykule przedstawiono algorytm obliczania spadku naporu śruby w wyniku kołysań statku na fali o zadanych parametrach: wysokość znacząca Hs, okres T1 i kierunek geograficzny.

5

Prediction of the influence of emergence of propeller on the propeller thrust and speed reduction during navigation on a given ocean route

Szelangiewicz T., Żelazny K.

Journal of Polish CIMAC

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2010

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Vol. 5, no 2

161-173

EN

During ship navigation on waves the relative motions i.a. occur which result in propeller emergence, and in consequence they cause the propeller thrust reduction. The article presents the algorithm for calculating the propeller thrust reduction as a result of the ship motions on waves having preset parameters: significant wave height , period and geographical direction.