The development of a prototype of an underwater robot with a variable geometry of the body is a major complex task, including a whole series of tasks of a scientific, technical, engineering and applied nature, and the creation of new automatic systems for managing it. The creation of such a robot will ensure its high autonomy and maneuverability. In this paper, the development of a solid model of a biomimetic robot hybrid and AUV with a variable geometry of the hull is presented. Also presented is a basic pneumatic circuit integrated into the robot body, which drives the pneumatic muscles fixed to the ribs of the robot's robust body. The experimental part includes the investigation of the vertical and horizontal components of the deformation of the walls of the shell, depending on the pressure supplied by the pneumatic system to the pneumatic muscles.
For underwater robots in the past three decades, the problem of energy efficiency and acoustic noiselessness has arisen sharply. The solution of these problems is inextricably linked with the solution of the problems of dynamics and vibroacoustics arising in the flow of a liquid under the flow of underwater bodies. These problems include the problem of the pressure pulsations occurrence and velocity distributed over the surface of the object, as well as noise and vibrations caused by these pulsations. To create energy-efficient and low-noise underwater robots, it is necessary to create methods for influencing the structure of wall currents and the shape of the aerodynamic surfaces of the robot in order to reduce its surface friction, as well as impedance. In this paper, we consider the development of an experimental bench for testing the main executive systems of an underwater robot with an anisotropic hull, including a buoyancy variation system, a trim and roll change system, and a hull geometry changing system.
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