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This paper deals with a novel closed-loop maneuvering control method to enhance the turning precision and turning response speed of a robotic fish propelled via the body and/or caudal fin (BCF) mode. Although the BCF propulsion is favorable for the cases requiring greater thrust and accelerations, its maneuverability can be compensated by effective turning control. In our method, the turning maneuver...
This paper deals with the design and 3D motion control of a radio-controlled, multi-link and free-swimming biomimetic robot fish based on an improved kinematic propulsive model. The performance of the robot fish is determined by the fish's both morphological parameters and kinematic parameters. By ichthyologic theories of propulsion, a design framework taking into consideration of both mechatronic...
We develop a practical motion control strategy for a radio-controlled, 4-link and free-swimming biomimetic robot fish that uses a flexible posterior body and an oscillating foil as propulsor. Because motion control of robot fish involves hydrodynamics of the fluid environment and dynamics of the robot, it is very difficult to establish a mathematic model employing purely analytical methods. The fish's...
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