AUV의 추진성능 추정 방법 연구

Abstract

Thrust is one of important performances of AUV. At the design stage, we firstly estimate the resistance of AUV at its maximum speed secondly design the thrust system, including propeller diameter, propeller rpm, driving system and required power. But we can't be assured that the thrust system is rightly designed until we launch the AUV and measure its speed. If we have the data of the propeller open-water test we can estimate the thrust and torque of the propeller at certain speed. And if we have the motor's torque characteristics we can estimate the maximum speed saturated by the induced propeller torque. In this paper we will show the easy way of estimating maximum speed of an AUV even in the case of gaining additional resistance from appendages of not concerned at the design stage. Furthermore we can easily investigate the thrust performance changes by adjusting the diameter of the propeller.