屈曲形水中推進機構の研究 : 第3報,3関節モデルの消費エネルギー・推進効率特性解析

概要

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Although analytical and experimental studies on the bending propulsion mechanism of fish or cetaceans have been carried out by many researchers, the reasons for high speed and high efficiency of the bending propulsion motion have not been clarified, probably because the dynamic interaction between mechanism and fluid has not been taken into account. In this study, we investigate the characteristics of the energy consumption and propulsive efficiency of a three-joint bending propulsion mechanism using the analytical method proposed for a coupled system of the mechanism and the fluid. It is found that the propulsive efficiency has a maximum value of 45% when the propulsive distance in one period of the motion has a certain value and when all phase differences between joints are approximately 60 degrees.
一般社団法人日本機械学会の論文
1994-01-25