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This paper considers the path tracking problem for a class of underactuated autonomous underwater vehicles (AUVs), where only surge force and stern plane are available for vehicle's 3DOF diving motion. For these torpedo-type flying vehicles, the pitch moment is proportional to the vehicle's forward speed. Therefore, if vehicle takes slow motion, then we cannot fully excite the vehicle's pitch motion...
Aqua is an underwater biomimetic vehicle designed and built at McGill University that uses six paddles to produce control and propulsion forces. It has the particularity of having time-periodic thrust due to its oscillating paddles. Using an existing dynamics model of the vehicle and a numerical simulation, three types of controllers were developed to provide trajectory tracking capabilities to the...
In this paper, coordinated motion control of underwater vehicle-manipulator system (UVMS) is addressed. In order for UVMS to carry out manipulation tasks alone, motion planning with consideration of redundancy and tracking control under disturbances are required. We propose redundancy resolution with optimization of restoring moments as motion planning and inverse optimal nonlinear Hinfin control...
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