Paper Info
Title
Buoyancy engine developed for underwater gliders.
Abstract
A buoyancy engine with a swashplate-type axial piston pump was developed. Its oil extrusion and drawing properties under high hydraulic pressure were evaluated. This buoyancy engine is now installed in an underwater glider that will achieve long-term monitoring of ocean environments up to 2100m depth in a designated area with lower operational costs. This bidirectionally functioning pump can control the amount of oil in extrusion and draw operations. When drawing oil under high pressure, the hydraulic pump and the electric motor, respectively, act as a hydraulic motor and an electric generator. The generated electric power is absorbed by a damping resistor. The oil-drawing and extrusion properties were measured using a large hyperbaric chamber that is able to produce an almost identical environment to that of actual operations. Results confirmed stable oil extrusion operations up to 21MPa. Regarding oil-drawing properties, although it was measured only up to 10MPa in the hyperbaric chamber, it can be inferred that the system can draw the oil and can control the buoyancy precisely up to 21MPa by replacing the two-way ball valve with an electromagnetic latching solenoid valve.
Year
DOI
Venue
2016
10.1080/01691864.2015.1102647
ADVANCED ROBOTICS
Keywords
Field
DocType
underwater robotics,buoyancy engine,swashplate-type axial piston pump,underwater glider,ocean environment monitoring,long-term monitoring
Hydraulic motor,Electric power,Electric generator,Mechanical engineering,Hydraulic pump,Engineering,Buoyancy,Axial piston pump,Electric motor,Marine engineering,Underwater glider
Journal
Volume
Issue
ISSN
30.0
1
0169-1864
Citations 
PageRank 
References 
0
0.34
0
Authors
6
Name
Order
Citations
PageRank
Kenichi Asakawa1133.48
Kensuke Watari200.68
Hidetoshi Ohuchi301.01
Masahiko Nakamura400.34
Tadahiro Hyakudome511.09
Yasuhisa Ishihara600.34