Numerical Study of the Thrust, Energy Consumption, and Propulsive Efficiency of a Three Joint Bending Propulsion Mechanism

[+] Author and Article Information
Motomu Nakashima, Kyosuke Ono

Faculty of Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan

J. Fluids Eng 122(3), 614-618 (Mar 13, 2000) (5 pages) doi:10.1115/1.1287503 History: Received December 06, 1999; Revised March 13, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Analytical model of a three joint bending propulsion mechanism
Grahic Jump Location
Thrust F̄px*, its components F̄px1*,F̄px2*, and drag FD* as functions of Ū* when θp max=5.2 deg(p=1∼3): (a) ϕ0=0 deg, (b) ϕ0=100 deg
Grahic Jump Location
Motions of the bending propulsion mechanism during half a period of time: (a) Ū*=0.31,ϕ0=0 deg, (b) Ū*=0.62,ϕ0=0 deg, (c) Ū*=1.11,ϕ0=0 deg, (d) Ū*=1.88,ϕ0=0 deg, (e) Ū*=2.14,ϕ0=0 deg, (f) Ū*=0.16,ϕ0=100 deg
Grahic Jump Location
Propulsive efficiency η as the function of the uniform phase difference ϕ0 for various normalized speed Ū*
Grahic Jump Location
Propulsive efficiency η and its components Ēpx* and Ēpy*, as functions of Ū* when θp max=5.2 deg(p=1∼3),ϕ0=100 deg



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