A bionic fish propulsion device and its control method

A technology of a propulsion device and a control method, applied in the field of bionic robots, can solve problems such as inability to simulate fish tail swings, poor propulsion efficiency, etc., achieve excellent hydrodynamic characteristics, and avoid excessive force deformation.
CN113104188BActive Publication Date: 2022-04-15JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Publication Date
2022-04-15

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Abstract

The invention discloses a bionic fish propulsion device, which comprises a base plate, the base plate is provided with a deflector plate and a support column, the top of the support column is provided with a concave guide rail block, the concave guide rail block is provided with a slide groove, and the concave clamp rod passes through the The slider is slidably installed in the chute of the concave guide rail block. The concave clamping rod is equipped with an imitation fishtail elastic plate. There is a first V-shaped elastic support plate and a second V-shaped elastic support plate between the two imitation fishtail elastic plates. Two driving devices are installed on the bottom plate. The push rods of the two driving devices are hinged to the corresponding concave clamping rods. . The bionic fish propulsion device of the present invention utilizes the passive staggered propulsion deformation of the intersecting imitation fishtail elastic plates to realize the approximate fishtail swimming posture and can exhibit excellent hydrodynamic characteristics; driven by double imitation water servo motors, multi-frequency can be realized Propulsion, stepless steering.
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Description

technical field

[0001] The invention relates to a bionic fish propulsion device and a control method thereof, belonging to the technical field of bionic robots. Background technique

[0002] Fish use the reciprocating swing of the body and fish tail to form a forward propulsion force, with high propulsion efficiency and flexible steering, and has a good prospect for underwater propulsion.

[0003] Most of the existing bionic fish propulsion structure designs use hydraulic transmission, steering gear twisting and other methods to realize propulsion. The invention patent with application number CN201822034238.2 introduces a bionic fishtail electro-hydraulic propulsion device. The hydraulic motor drives the front half of the bionic fish tail fin to reciprocate to realize the periodic swing of the bionic fish tail fin. The flaky tail fin realizes the swing, which cannot better imitate the elastic deformation and swing posture of the fish tail, and it is difficult to better refl...

Claims

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