A bionic flexible propulsion device and wave control method

Abstract

The invention discloses a bionic flexible propulsion device and a wave control method. One side of the magnetically controlled shape memory alloy spring drive device is fixed on a mounting plate, and the other side is attached to the surface of a flexible film, and it is packaged. In the driving sequence of the magnetically controlled shape memory alloy springs connected to the surface of the film and the surface of the mounting plate, the length of each group of shape memory alloy springs is adjusted by adjusting the current of the excitation coil, so that it fluctuates in sequence with equal phase differences. By changing the shape memory alloy springs The magnitude, phase and frequency of the driving voltage can be used to change its motion state and adjust the film wave motion parameters, so as to realize the motion control of the underwater vehicle. The invention adopts the fluctuating propulsion mode of the imitation fish biological torso, realizes the self-adaptive adjustment of the motion parameters of the propulsion device, and adapts to the complexity and diversity of the underwater application environment.

Description

technical field [0001] The invention belongs to the technical field of underwater bionic thruster drive, and in particular relates to a bionic flexible propulsion device and a wave control method. Background technique [0002] After a long period of natural selection, aquatic organisms have evolved unique structures and movement patterns in terms of long-distance cruising, fast maneuvering response, and long-range target induction, which provide valuable reference for the study of new underwater propulsion mechanisms. Although underwater bionic propulsion technology has attracted much attention due to its potential application prospects, the existing technology is still difficult to meet the long-term and stable application of fish-like propulsion in various underwater environments, mainly reflected in: (i) the developed Although various bionic underwater vehicles can achieve basic motion functions, they are difficult to meet the needs of practical applications due to techni...

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional driving devices that imitate the unique shape or structural characteristics of fish, such as imitating trevally family robotic fish, imitating manta ray robotic fish, long-finned robotic fish and bionic jellyfish, etc., are large in size and complex in shape. When it is installed on the surface of the aircraft, it will change the surface structure of the aircraft, increase the size and weight of the aircraft, and affect its navigation performance

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