Method of controlling rotational speed of propeller of ship to reduce cavitation
AssigneeMoth Co., Ltd.
InventorsYeong Ju GO, Chang Sup LEE
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Abstract
Disclosed is a method of controlling a rotational speed of a propeller of a ship to reduce cavitation. The method may reduce cavitation by determining a rotational angle range of a propeller corresponding to a cavitation occurrence section when cavitation occurs during sailing of a ship and by increasing or reducing the rotational speed of the propeller within the determined rotational angle range of the propeller corresponding to the cavitation occurrence section. Therefore, it is possible to simply reduce cavitation only by controlling the rotational speed of the propeller without changing the structure of the propeller.
Claims10
A method of controlling a rotational speed of a propeller of a ship to reduce cavitation, the method comprising:
- (S100) generating cavitation information about cavitation occurring during rotation of a propeller;
- (S200) measuring a rotational angle of the propeller in real time after generating the cavitation information;
- and
- (S300) changing a rotational speed of the propeller using the cavitation information generated in the step (S100) and information about the rotational angle of the propeller measured in real time in the step (S200) such that occurrence of cavitation is reduced, wherein the cavitation information comprises information about a rotational angle of the propeller at a time of occurrence of cavitation.
Dependencies are inferred from the claim text.