Hydrodynamics Modeling of a Piezoelectric Micro-Robotic Fish With Double Caudal Fins

Author:

Zhao Quanliang1,Chen Jinghao1,Zhang Hongkuan1,Zhang Zhonghai2,Liu Zhikai1,Liu Shiqi1,Di Jiejian1,He Guangping1,Zhao Lei1,Zhang Mengying1,Su Tingting1,Liang Xu1

Affiliation:

1. North China University of Technology, Beijing 100041, China

2. Beijing Aerospace Measurement &, Control Technology Co., Ltd, Beijing 100041, China

Abstract

Abstract An analytical hydrodynamics model for a piezoelectric micro-robotic fish with double caudal fins is presented in this paper. The relation between displacement of the piezoelectric actuator and oscillating angle of the caudal fin is established based on the analysis of the flexible four-bar linkage transmission. The hydrodynamics of caudal fins are described by airfoil and blade element theories. Furthermore, the dynamics and kinetics of the whole micro-robotic fish are analyzed and validated by experiments.

Publisher

ASME International

Subject

Mechanical Engineering

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