漁船の推進性能とプロペラ起振力について

概要

論文の詳細を見る
Recent trend of fishing boats, especially an ocean going stern trawler is that horse powers of them become larger and larger. According to this trend, a few troubles related to vibration at the stern are reported. The main purposes of this paper are to clarify characteristics of propulsive performance and propeller-excited vibratory forces of fishing boats, and remove these troubles. The first part of the paper deals with propulsive performance obtained from model tests and the estimated horse power compared with the results of ship's speed trials. In the second part of the paper, the research on vibratory forces is dealt with. Pressure fluctuations at the stern above the propeller of ship models and actual ships, and variations of thrust and torque on one blade of a propeller model were measured under the still water and following sea conditions. Furthermore, the unsteady lifting surface theory was applied to obtain the six components of propeller-excited shaft forces. Finally, the authors indicate the fundamental remarks to design fishing boats.
独立行政法人海上技術安全研究所の論文
1977-07-30