Abstract

This paper presents an architecture of a newly developed autonomous underwater vehicle (AUV) platform, named KAUV-1, which is designed as a torpedo with very light weight and small size, suitable for use in marine exploration and monitoring. The KAUV-1 has a unique ducted propeller lo- cated at the aft end with yawing actuation acting as a rudder. For depth motion, the KAUV-1 is de- signed to have a mass shifter mechanism inside to change the vehicle center of gravity and to control its pitch angle and depth motion. The paper also presents an analysis on the equations of motion of the KAUV-1 with mass shifter mechanism and a new depth control strategy for the KAUV-1. The feasi- bility of the proposed control strategy is validated through simulation and experiment of performance of the vehicle.

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