自励駆動水上推進機構の研究 : 第2報, 自励パラメータ領域およびアクチュエータ効率・推進効率特性

概要

論文の詳細を見る
In the preceding paper, we proposed an aquatic propulsion mechanism in which a rolling motion of a cylindrical body is self-excited so as for an attached flexible fin to kick fluid. In this paper, we investigated the various characteristics of this propulsion mechanism in detail; The characteristics of the theoretical self-exciting parameter region was first examined and compared with experimental results. Then the characteristics of the efficiency as an actuator and of the efficiency as a propulsor were discussed. It was found that the system tends to be self-excited when the feedback gain is large and the external damping of the body is small. It was also found that the efficiency as an actuator is high enough in almost all parameter region and that both propulsive speed and efficiency become maximum at almost same fin thichness.
一般社団法人日本機械学会の論文
1999-11-25