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As research attention grows on biomimetic underwater robots inspired by biological fish, the typical pectoral fin propulsion features as the biomimetic design are proposed in this paper. The goal is to achieve efficient and flexible propulsion motion through a combination design of the flexible joints. This design aims to mimic the articulation arrangement of biological fins through the arrangement of flexible hinges and achieve the stiffness distribution of biological fish fins through variations in parameters of joint. Typical pectoral fin propulsion is achieved by controlling the swinging of fin rays, and Fluent is introduced for simulation studies. The variations in motion characteristic parameters of the fin surface during the motion cycle are obtained, thus the further performance of biomimetic fin propulsion is verified.

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Biomorphic Propulsion Structure and Its Performance

  • 会议论文

  • 发表日期：

    2025年

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  • Liping Zhang,
  • Haiyi Liu,
  • Muge Qi,
  • Xinlei Wang,
  • Pengjia Xu,
  • Wei Wang

摘要

As research attention grows on biomimetic underwater robots inspired by biological fish, the typical pectoral fin propulsion features as the biomimetic design are proposed in this paper. The goal is to achieve efficient and flexible propulsion motion through a combination design of the flexible joints. This design aims to mimic the articulation arrangement of biological fins through the arrangement of flexible hinges and achieve the stiffness distribution of biological fish fins through variations in parameters of joint. Typical pectoral fin propulsion is achieved by controlling the swinging of fin rays, and Fluent is introduced for simulation studies. The variations in motion characteristic parameters of the fin surface during the motion cycle are obtained, thus the further performance of biomimetic fin propulsion is verified.