Thrust Analysis of a Fish Robot Actuated by Piezoceramic Composite Actuators

作     者：Quang Sang Nguyen Hoon Cheol Park Doyoung Byun 

作者机构：Biomimetics and bltelligent Microsystems Laboratory Department of Advanced Technology Fusion Konkuk University Seoul 143-701 South Korea Department of Advanced Technology Fusion Konkuk University Seoul 143-701 South Korea Department of Aerospace Engineering Konkuk University Seoul 143-701 South Korea 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2011年第8卷第2期

页      面：158-164页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 080706[工学-化工过程机械] 08[工学] 080202[工学-机械电子工程] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 0836[工学-生物工程] 0702[理学-物理学] 

基　　金：Korea Research Foundation Ministry of Education Science and Technology of the Korean government 

主　　题：fish robot CFD LIPCA thrust measurement thrust analysis composite actuator vortex shedding 

摘      要：In this work, a three-dimensional （3D） Computational Fluid Dynamics （CFD） model was built to simulate the tail fin motion of a fish robot actuated by a piezoceramic composite actuator, and to determine the maximum thrust tail-beat frequency. A simulation of the tail fin at a tail-beat frequency was performed to confirm measured thrust data from a previous study. The computed and measured thrusts were in good agreement. A series of thrust simulations were conducted for various tail-beat frequencies to confirm the maximum thrust frequency that was obtained from thrust measurements in the previous study. The largest thrust was calculated at a tail-beat frequency of 3.7 Hz and vortices around the tail were fully separated. The calculated maximum thrust tail-beat frequency was in good agreement with the measured frequency. Flow characteristics during tail fin motion were examined to explain why the largest thrust occurred at this particular tail-beat frequency.