Deformable bionic power conversion impeller by means of fin undulation and hydraulic volumetric difference

Abstract

A deformable bionic power conversion impeller by means of fin undulation and hydraulic volumetric difference comprises two completely identical fish-shaped oil cylinder assembly bodies, two completely identical framework assembly bodies, a hull, a flexible tail fin and two completely identical foldable telescopic oil cylinders for power conversion. Oil cylinders of the fish-shaped oil cylinder assembly bodies and the oil cylinders for power conversion are respectively in bilateral symmetry and are fixedly connected to two sides of the hull respectively through screws so that two completely communicated from heads to tails and completely independent sealing oil cavities are formed, the two sealing oil cavities are vertically restrained by the framework assembly bodies which are connected by retrofitting chains, liquid is filled into the oil cavities, and the two oil cylinders for power conversion are alternately squeezed and stretched with any power capable of generating alternate reciprocation of two straight lines and meeting the load requirements. The power conversion impeller is capable of generating impelling force by simulating undulation of the tail fin of an underwater creature, and load and undulation amplitude of the impeller can be controlled by changing magnitude and speed of power output. Turning can be controlled by changing mutual positions of acting neutral points of the power.

Description

technical field [0001] The invention mainly relates to the design field of a bionic underwater thruster, in particular to a hydraulic volume difference deformation bionic wave fin power converter. Background technique [0002] At present, some scientific research institutions at home and abroad are conducting research on the undulating motion of flexible long fins of underwater organisms, such as "sharks", and have developed test devices that simulate the undulating motion, and have carried out underwater propulsion tests of such devices. The undulating motion is confirmed to have distinct low-perturbation properties. However, these test devices have some defects. For example, although they are designed to simulate flexible motion, in fact, many places use rigid mechanisms. The structure is complicated, the control is cumbersome, the manufacturing difficulty and production cost are very high, and it is difficult to get out of the laboratory and enter the practical applicatio...

AI Technical Summary

Problems solved by technology

However, there are some defects in these test devices. For example, although they are used to simulate flexible motion, in fact, many places use rigid mechanisms. The structure is complicated, the control is cumbersome, the manufacturing difficulty and production cost are very high, and it is difficult to get out of the laboratory and enter the practical application.

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