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Software bionic fish tail

A technology of fish tail and soft body, which is applied in the field of soft body bionics, can solve the problems of complex movements, poor continuous deformation ability and small deformation amount of difficult tuna, and achieve the effect of light weight, reasonable overall structure and large deformation

Inactive Publication Date: 2018-12-07
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional rigid-body biomimetic fish are mostly composed of metal or plastic materials. The "rigid" structure simulates the fish propulsion mode to realize the robot fish movement; but this structure is far from the "soft" fish body, and has defects such as poor continuous deformation ability and slow response. ;Fish live in a complex marine environment for a long time, and can complete rapid response movements such as predation and escape according to immediate changes in the environment, mainly relying on the body-caudal fin mode and central fin / opposite fin mode propulsion composed of soft body structure and its efficient propulsion mode In order to realize the miniaturization of bionic fish and improve its flexibility, smart materials such as shape memory alloys, giant magnetostrictive films and piezoelectric materials have been applied to the research of bionic fish; however, these structures are due to various Due to limited material properties, less movement and small deformation, it is difficult to simulate the complex movements that tuna can complete

Method used

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  • Software bionic fish tail
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Experimental program
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Effect test

Embodiment 1

[0017] The main structure of the soft bionic fishtail involved in this embodiment includes fishtail muscle 1, electrode 2, caudal fin 3, clamp 4, resin film 5, carbon fiber 6, high-voltage amplifying power supply 7; fishtail muscle 1 has multi-layer dielectric elasticity Polymers are layered to achieve bending deformation; each layer of dielectric elastic polymer in the fishtail muscle 1 is spray-printed with electrodes 2, and the electrodes 2 have a self-similar scissor-like structure, and the material of the electrodes 2 is nano-metal particle liquid , in order to realize the electro-driven deformation of the dielectric elastic polymer; the fishtail muscle 1 is evenly doped with carbon fibers 6, so as to enhance the elasticity and firmness of the fishtail muscle; the tail fin 3 is connected to the side of the fishtail muscle 1 through the resin film 5 The caudal fin 3 is a single-layer dielectric elastic polymer material; the other side of the fishtail muscle 1 is fixed and c...

Embodiment 2

[0026] The crescent-shaped bionic tail of the tuna involved in this embodiment, the design of the structure includes soft muscles, caudal fins and clamps, wherein the materials used for each part are as follows: the muscle tissue material is a dielectric elastic polymer, and its electrode is a nano-metal particle liquid, To achieve electro-actuation, the material of the tail fin is dielectric elastic polymer, and the clamp is made of plexiglass plate. Moreover, the soft muscle structure adopts a laminated design, which can produce large bending deformation under the action of the dielectric elastic polymer; and the caudal fin material is a single layer of dielectric elastic polymer, which moves together with the front soft muscle. Laminated dielectric elastic polymer 1 is formed according to its own viscosity or laminated and bonded by polyurethane film, combined with electrohydrodynamic jet printing technology to print electrodes 2 on the upper and lower surfaces of laminated ...

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Abstract

The invention belongs to the field of software bionic design, and mainly relates to the design of a software bionic fish tail by utilizing the large deformation characteristic of a software intelligent material, in particular to a software bionic fish tail. Fish tail movement is realized by combining dielectric elastic polymer lamination and nano-particle liquid jet printing electrodes. The software bionic fish tail mainly comprises fishtail muscles, electrodes, tail fins, clamps, resin films, carbon fibers and high-voltage amplification power supply. The material property of the software bionic fish tail is closest to muscle tissue, the material is soft and the deformation is large. The complex action of fishes adopting a tail fin propulsion mode, such as tuna is realized, and the software bionic fish tail has the advantages of simple structure, light weight and high efficiency. The multilayer dielectric elastic polymer with lamination design and the scissor shape electrodes can realize complex and high-strength deformation. The overall structure is reasonable, the principle is reliable, and the application environment is friendly.

Description

Technical field: [0001] The invention belongs to the field of soft bionics, and mainly relates to the design of a soft bionic fishtail by using the large deformation characteristics of soft intelligent materials, in particular to a soft bionic fishtail, which uses dielectric elastic polymer and non-lamination and nano particle liquid spray printing electrodes Combined to achieve fishtail movement. Background technique: [0002] Underwater bionic technology is a new technology based on bionics and combined with the high-efficiency movement mode formed by the long-term evolution of fish. The underwater vehicle developed by this technology continues the early information monitoring in the marine environment, underwater Civil applications such as underwater auxiliary navigation and positioning, marine resource surveying, and military applications such as distributed tactical monitoring, mine reconnaissance, and underwater target detection, tracking, and positioning. The electro...

Claims

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Application Information

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IPC IPC(8): B63C11/52B63H1/36
CPCB63C11/52B63H1/36
Inventor 杨熙鑫刘维青官源林崔海荣
Owner QINGDAO UNIV