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Research and Experiment on a Bionic Fish Based on High-Frequency Vibration Characteristics.

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Summary

This study quantifies voltage and beat frequency for stable, high-speed swimming in bionic robot fish. Optimized fishtail resonance using electromagnetic drive and particle swarm optimization enhances swimming efficiency.

Keywords:
bionic robotic fishcentral pattern generatorelectromagnetic drivehigh-frequency vibrationprototype experiment

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Area of Science:

  • Robotics
  • Biomimetics
  • Fluid Dynamics

Background:

  • Bionic robot fish research focuses on mimicking natural fish for efficient underwater locomotion.
  • Understanding high-frequency vibration is crucial for achieving stable and high-speed swimming.
  • Existing designs often struggle with optimizing propulsion and control mechanisms.

Purpose of the Study:

  • To investigate the high-frequency vibration characteristics of a bionic robot fish.
  • To quantify the impact of voltage and beat frequency on swimming performance.
  • To develop and validate a novel electromagnetic drive system for enhanced biomimetic locomotion.

Main Methods:

  • Experimental analysis of vibration characteristics using a single-joint fishtail model.
  • Development of a new electromagnetic drive with a silicone tail simulating fish muscle elasticity.
  • Implementation of a central pattern generator (CPG) control model with particle swarm optimization (PSO).
  • Tuning fishtail elastic modulus to achieve resonance with the vibrator.

Main Results:

  • Quantified the relationship between voltage, beat frequency, and high-speed, stable swimming.
  • Demonstrated that fishtail resonance with the vibrator significantly improves swimming efficiency.
  • The bionic robot fish prototype achieved high-speed swimming through high-frequency vibration.

Conclusions:

  • High-frequency vibration is a key factor for achieving high-speed swimming in bionic robot fish.
  • The proposed electromagnetic drive and control system effectively enhance swimming performance.
  • Resonance tuning offers a promising approach to optimize the propulsive efficiency of biomimetic aquatic robots.