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振動翼推進船の研究
Study on an Oscillating Wing Propulsion Ship
永井, 實
照屋, 功
中井, 哲朗
Nagai, Minoru
Teruya, Isao
Nakai, Tetsurou
open access
Copyright (c) 1996 日本機械学会
Fluid Dynamics
Fluid Force
Propulsion Mechanism
Swimming Motion
Oscillating Wing
Ship
A screw propeller is the most typical mechanism for ship propulsion. However, it is well known that some species of aquatic animals such as tuna and dolphin are able to swim at a high speed by powerful fanning of their caudal fins. The swimming motion of these animals is considered to be a combination of the heaving and pitching motion of the tail fin (the oscillating wing). The authors have developed a two-hinge oscillating fin propulsion mechanism which basically follows the swimming motion of aquatic animals'. The propulsion system is driven by a 13 PS motorcycle engine mounted on an experimental ship. The ship is 3.6m in length, 1m in width, and about 160kgf in weight. The wing is flat plate of 3.2mm thickness and 0.27m^2 area, and its aspect ration is 6.3. The wing motion is determined by the balance of forces between a flowing fluid and the torsion of a coiled spring attached to the 2nd hinge at each engine frequency. The maximum ship speed of l.58m/s is obtained in the case of 3.53N・m/deg spring strength and 2.8Hz frequency.
論文
日本機械学会
1996-05-25
jpn
journal article
VoR
http://hdl.handle.net/20.500.12000/235
http://hdl.handle.net/20.500.12000/235
https://u-ryukyu.repo.nii.ac.jp/records/2000809
03875016
AN00187441
日本機械学会論文集. B編
Transactions of the Japan Society of Mechanical Engineers. B
62
597
177
183
https://u-ryukyu.repo.nii.ac.jp/record/2000809/files/teruya_i02.pdf