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Variable rigidity bionic swinging propulsion unit

A technology of swing device and propulsion device, which is applied in the direction of non-rotating propulsion elements, etc., and can solve the problems of propulsion efficiency and speed gap

Inactive Publication Date: 2012-09-19
HARBIN INST OF TECH
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

Various forms of robotic fish, fish-like robots or bionic underwater propellers have come out one after another, but there are still many problems, and there is a big gap between the propulsion efficiency and speed of fish

Method used

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  • Variable rigidity bionic swinging propulsion unit
  • Variable rigidity bionic swinging propulsion unit
  • Variable rigidity bionic swinging propulsion unit

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specific Embodiment approach

[0093] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0094] Such as figure 1 As shown, the variable stiffness bionic swing propulsion device of the present invention. as attached Figure 1-3 As shown, a bionic swing propulsion structure with variable stiffness includes a support, a swing device with more than two sections, and a tail fin. The swing device includes an upper platform, a lower platform, 18 flexible hinge points, 8 outriggers and a spinal column , there is a flexible hinge point o' at the center of the upper platform, and a flexible hinge point o at the center of the lower platform, and the flexible hinge point o' and the flexible hinge point o are connected by the spine;

[0095] There are 8 flexible hinge points distributed on the lower platform at radius r b On the circle whose center is o, these eight flexible hinge points are divided into four groups, and the flexible hinge p...

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Abstract

A variable rigidity bionic swinging propulsion unit comprises a support, more than two joints of swinging devices and a tail fin, wherein each swinging device comprises an upper platform, a lower platform, eighteen flexible hinge points, eight outriggers and a spinal column, a flexible hinge point o' is arranged at the center of the upper platform, a flexible hinge point o is arranged at the center of the lower platform, and the flexible hinge points o' and o are connected together through a spine; and the flexible hinge points are respectively connected with each other through the eight outriggers. The variable rigidity bionic swinging propulsion unit has the advantages that the variable rigidity bionic swinging propulsion unit has the characteristics of large thrust, continuous movement and good flexibility; and the propulsion efficiency is improved, and a variable rigidity energy-saving swimming mechanism for fishes is realized.

Description

technical field [0001] The invention mainly relates to the field of bionic underwater robots, in particular to a variable stiffness bionic swing propulsion device. Background technique [0002] At present, scientific research institutions at home and abroad have studied the body swing of underwater creatures such as tuna, swordfish, and sharks when they swim. It has been confirmed that these fish use the Body and Caudal Fin (BCF) as a propeller, and the body swings from side to side and hits the water, generating reverse motion. Carmen vortex street, using the reaction force it produces to make the fish body move forward. Due to the high propulsion efficiency, fast speed and strong maneuverability of these fish, many scholars have taken them as the object of bionic research. Various forms of robotic fish, fish-like robots or bionic underwater propellers have come out one after another, but there are still many problems, and there is a big gap between the propulsion efficien...

Claims

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Application Information

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IPC IPC(8): B63H1/36
Inventor 姜洪洲田体先何景峰佟志忠
Owner HARBIN INST OF TECH
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