スキュードCPP採用による船体振動の改善

概要

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This is the experimental report showing how hull vibration was reduced by the use of highly skewed blades (H. S. blades) from measuring hull vibration, in case of replacing conventional blades with H. S. blades on the ship equipped with controllable pitch propeller (CPP) .<BR>The following points have been found from the result of vibration measurement.<BR>Hull vibration has been reduced to half of the existing one by utilizing H. S. blades as a whole. Especially, the blade number frequency component of vertical acceleration has been reduced conspicuously.<BR>In case of CPP, H. S. blades with ahead blade angle can reduce hull vibration effectively, but they can not reduce hull vibration at all at the time of specific operation of the ship such as astern.<BR>H. S. blades to twin screws ship can reduce hull vibration more effectively than expected, compared with H. S. blades to single screw ship.
社団法人日本マリンエンジニアリング学会の論文