Inverse speed analysis and low speed control of underwater vehicle
Ye Li , Yan-qing Jiang , Shan Ma , Peng-yun Chen , Yi-ming Li
Journal of Central South University ›› 2014, Vol. 21 ›› Issue (7) : 2652 -2659.
Inverse speed analysis and low speed control of underwater vehicle
Inverse speed is a reversible maneuver. It is a characteristic of underwater vehicle at low speed. Maneuverability in the vertical plane at a speed lower than inverse speed is different from one at higher speed. In the process of underwater working for observation, AUV’s cruise speed is always low. Therefore, the research on inverse speed is important to AUV’s maneuverability. The mechanism of inverse speed was analyzed, and then the steady pitching equation was derived. The parameter expression of track angle in vertical plane was deduced. Furthermore, the formula to calculate the inverse speed was obtained. The typical inverse speed phenomenon of the flat body and the revolving body was analyzed. Then the conclusion depicts that, for a particular AUV with flat body, its inverse speed is lower than that of revolving body. After all the calculation and the analysis, a series of special experiments of inverse speed were carried out in the simulation program, in the tank and in the sea trial.
underwater vehicle / motion control / inverse speed
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