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Motion control for one kind of underwater robotic fish is presented in this paper. Here our robotic fish prototype has two long-fins installed symmetrically on its both sides. And one long-fin is made up by springiness membrane covered on ten ray-fins. Ten servo-motors are used to control the motions of the ten ray-fins on one side. Due to the special structure of the prototype, swimming motion modes...
The swimming backward method for biomimetic carangiform robotic fish is analyzed in this paper based on the dynamic/kinematic model. The equation of Lagrange of multi-link carangiform robotic fish and simplified fluid force are inducted to calculate the dynamic and kinematic characteristics of the motions. A specific gait is calculated to make the profile of the carangiform robotic fishpsilas undulation...
This paper proposes a kinematic modeling method for a bio-inspired robotic fish based on single joint. Lagrangian function of freely swimming robotic fish is built based on a simplified geometric model. In order to build the kinematic model, the fluid force acting on the robotic fish is divided into three parts: the pressure on links, the approach stream pressure and the frictional force. By solving...
In this paper, a networked control system based on Simulink's s-function is presented for remote control of a biomimetic robot fish. The whole system consists of a network camera, a remote controller, a local controller and a robot fish. The remote controller obtains real-time images from the network camera, processes these images, generates control instructions, and sends the control instructions...
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