A biomimetic underwater propeller with fast turning motion

Abstract

The invention aims to provide a bionic underwater propeller capable of conducting rapid steering motion. When a drive period begins, a water storage cavity is in the shrinkage state, external water enters the water storage cavity through water inlets, and wave type propelling motion of water flow in the water storage cavity is achieved through cooperation of an upper elastic film and a lower elastic film. When the pressure in the water storage cavity reaches a fixed value, IPMC valves of a valve nozzle are opened, the water flow enters a water spraying cavity, through the cooperation of the upper elastic film and the lower elastic film, secondary wave type propelling motion of the water flow in the water spraying cavity is achieved, when the pressure reaches a set value of a water spraying duct nozzle, spraying of the water flow is achieved, and the propeller is pushed to advance. Two side elastic films arranged in the middle are coordinated and cooperate, and wave type propelling motion of a three-channel power portion is achieved. When rapid steering motion is adopted, a control component controls eight SMA silks to be bent, so that bending nozzles are bent, and variance of jet flow in different directions is achieved. By the adoption of the bionic underwater propeller, the rapid steering motion of the underwater propeller is achieved.

Description

technical field [0001] The invention relates to a propeller, in particular to an underwater bionic propeller. Background technique [0002] With the increasing development of marine resources, the development of underwater equipment has highlighted important research significance. In view of the fact that the problem of underwater propulsion power can directly affect the propulsion efficiency of equipment, at this stage, relevant scholars at home and abroad have conducted research on underwater propulsion methods. Extensive exploration and research have been carried out, and many research results have been obtained in many aspects. With the in-depth research, it is found that the traditional motor-driven propeller propulsion method has increasingly exposed limitations such as high noise and complex mechanical structure, and is not suitable for underwater drive applications; the fish-like fin underwater propulsion method can meet energy conservation and environmental protecti...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bionic underwater thruster capable of solving the common defects of traditional underwater propulsion machinery

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