可変ピッチプロペラまわりの流場に関する実験的研究 (第3報) : CPP翼スピンドルトルクの計測

概要

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The hydrodynamical component of CPP blade spindle torque that plays an important role in CPP design is investigated. The hydrodynamical blade spindle torque of two model propellers (MP.B 82-1 and 82-2) was measured by the newly developed support-pillar type blade dynamometer in circulating water channels. Measurements for two propellers in the uniform flow field indicated that the maximum value of hydrodynamical blade spindle torque occured at the maximum reverse pitch setting and near the bollard condition (J=0) and the dominant factor influenced on the hydrodynamical blade spindle torque was blade contour. Fluctuations of the hydrodynamical blade spindle torque of MP. B 82-1 in the simulated non-uniform flow field with the wire mesh were measured. Although means are much different, fluctuations were nearly same for the pitch setting angle from-10 to 10 degree. It is also seen that the means in the non-uniform flow fields were a little higher than the values in the uniform flow at the same operating condition (same thrust condition). Comparisons of calculated values by the lifting surface method and measured values at the design and the maximum reverse pitch setting conditions were made and they showed good agreements. Then in order to use at the early design stage, spindle to torque estimating charts of AU-CP series CPP were drawn based on the lifting surface calculations.
社団法人日本船舶海洋工学会の論文
1984-03-30