DocumentCode :
2602815
Title :
Propulsion system performance enhancements on REMUS AUVs
Author :
Allen, Ben ; Vorus, William S. ; Prestero, Timothy
Author_Institution :
Woods Hole Oceanogr. Instn., MA, USA
Volume :
3
fYear :
2000
fDate :
2000
Firstpage :
1869
Abstract :
This paper details recent efforts on drag reduction, vehicle shape and propulsion system modifications, and propeller design for the REMUS class of autonomous underwater vehicles (AUV). Drag reduction was accomplished by tow-tank measurements of an existing design to itemize the sources of drag. The vehicle shape and main propulsion system were modified to use magnetic torque transfer through a seawater collar to eliminate a rotating shaft seal. Propeller design efforts consisted first of a trade-off analysis of blade number, RPM, vehicle speed and blade shape to determine an optimum design and then refinement of that design for production version. The combined effect of these efforts resulted in a four fold reduction in propulsion power at the same speed of the previous design, and an increase in maximum achievable speed by almost a factor of two. These propulsion system performance improvements combined with recent changes in energy capacity for the vehicle result in a total per mission range of 120 km at 1.5 m/s for an endurance of 20 hours
Keywords :
drag reduction; electric propulsion; hydrodynamics; oceanographic equipment; remotely operated vehicles; underwater vehicles; AUV; REMUS; RPM; autonomous underwater vehicle; blade number; blade shape; drag reduction; endurance; equipment; hydrodynamics; instrument; magnetic torque transfer; maximum achievable speed; mission range; modification; ocean; performance enhancement; propeller; propulsion system; seawater collar; vehicle shape; vehicle speed; Blades; Mobile robots; Propellers; Propulsion; Remotely operated vehicles; Shafts; Shape; System performance; Torque; Underwater vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
Type :
conf
DOI :
10.1109/OCEANS.2000.882209
Filename :
882209
Link To Document :
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