Biomimetic blue-dot ray underwater thruster

A thruster and blue dot technology, applied to underwater ships, underwater operating equipment, non-rotating propulsion components, etc., can solve the problem of inability to accurately describe the swimming process of real fish, complex water interaction, and inability to analyze fluid and Problems such as nonlinear effects of fish body

Pending Publication Date: 2019-01-04
SHANGHAI OCEAN UNIV
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Problems solved by technology

However, due to the complex interaction of water in the fluctuating process of fluctuating fins, there is still no theory that can describe the fluctuating model very accurately.
Most of the existing fish propulsion theories are based on the assumptions of potential flow, linear boundary conditions, and fixed wake shape, which cannot analyze the nonlinear interaction between the fluid and the fish body, nor can it solve the problem of dynamic change...

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  • Biomimetic blue-dot ray underwater thruster
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  • Biomimetic blue-dot ray underwater thruster

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Embodiment Construction

[0027] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment of various embodiments of the present invention.

[0028] See Figure 1-7 , The bionic blue-spotted stingray underwater propulsion includes a pair of pectoral fins, a main body, and a tail system. When designing the MPF mode bionic vehicle design, in order to complete the basic six degrees of freedom movement, it must have good maneuverability. Due to the characteristics of high performance, low disturbance and high efficiency, the following requirements must be met in the actual mechanical design.

[0029] a. In the entire mechanical design, the buoyancy of the bionic vehicle and its own gravity must be considered. Try to ensure that the vehicle itself is in a state of zero buoyancy in the water, and ensure that the quality is symmetrical from side to side, and that the overall center of gravity and buoyancy of the bionic vehicle are in the middle...

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Abstract

A biomimetic blue-dot ray underwater thruster includes a pair of pectoral fin systems, a main body and a tail system, wherein the pectoral fin system includes a plurality of swing structures, an electric motor, an eccentric wheel shaft and a rotating main shaft, wherein the swing structure comprises a U-shaped frame and a fin strip. The fin strip is fixedly connected with the U-shaped frame, eccentric wheels are arranged in the U-shaped frame, each eccentric wheel is fixed on the eccentric wheel shaft, the U-shaped frame is further provided with a rotating main shaft hole, and the U-shaped frame can rotate around the rotating main shaft. The front part of the main body is connected with a head structure, the front side of the head structure is provided with two biomimetic grooves, and a sensor is installed at the groove position. According to the idea of functional bionics, the invention develops a bionic effect which has the movement characteristics similar to a bionic object so as torealize the true bionic effect. At the same time, based on this structure, the observation function is realized.

Description

Technical field [0001] The invention relates to the field of underwater vehicles, in particular to a vehicle with a bionic structure. Background technique [0002] With the continuous development of human civilization, the terrestrial resources on the earth are increasingly depleted. Therefore, mankind began to look to the ocean. The development and utilization of the ocean by humans has gradually become a hot spot in current scientific research. Underwater propellers adapted to the marine environment are necessary tools for humans to develop and explore marine resources. At present, most underwater propellers use propeller propulsion systems [0003] Underwater propellers that use propellers as the propulsion system have disadvantages such as low efficiency, high propulsion noise, large wake vortices that affect the surrounding ecological environment, poor maneuverability, large system size, severe transient response lag, and difficulty in ensuring reliability. Therefore, the u...

Claims

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Application Information

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IPC IPC(8): B63H1/30B63G8/38
CPCB63G8/38B63H1/30
Inventor 李雪伟曹文辉高郭平赵红波敖琪李佳佳涂粲然
Owner SHANGHAI OCEAN UNIV
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