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METHOD OF OPTIMIZING THE EFFICIENCY OF SHIPS WITH BOW AND STERN PROPELLERS AND ARRANGEMENT FOR ADJUSTING THE SPEED OF ROTATION OF THE BOW PROPELLER
METHOD OF OPTIMIZING THE EFFICIENCY OF SHIPS WITH BOW AND STERN PROPELLERS AND ARRANGEMENT FOR ADJUSTING THE SPEED OF ROTATION OF THE BOW PROPELLER
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机译：弓桨和斯特恩桨优化船舶效率的方法及调整弓桨螺旋桨转速的方法
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摘要
The invention concerns a method of optimizing the efficiency of ships with bow and stern propellers and an arrangement for adjusting the speed of rotation of the bow propeller. Ferry boats in particular can have identical drives at the bows and the stern in order to avoid their having to turn when changing their direction of travel. Generally, during travel, the speed of rotation of the front propeller is slower than that of the rear propeller. According to the invention, in order to optimize efficiency, the total of the absorbed active power of the two drive systems is controlled so as to be at a minimum value. An associated arrangement comprises a controller (10) of which the input variables are formed by the active power of the two drive systems, the bow propeller speed of rotation at which the active power total is a minimum being determined in the controller (10).
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