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- Offer Profile
- On EXPO21XX.com you will find many research projects evolving around
water robots research. Some examples can be seen below. Click on "more info" to
see the whole online stand of the university or the company.
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Water robotícs highlights
- Picture by University of Bremen
Underwatersnake V3
@ University of Bremen
- The aim of the project is the development of a
next-generation underwater snake, focussing on construction, production, and
test of the propulsion components of the robot's spinal column. Above all,
the underwater snake is a swimming system, i.e., during operation, the robot
remains close to the surface while, if required, it may dive up to a depth
of 3 m. As compared to customary water propellers, the turbulence of the
system is significantly reduced due to an undulation propulsion. Thus it is
possible to use this robot in bodies of water with strong plant growth or
near sensitive devices or edifices.
µAUV
@ University of Bremen
- Exploration of the world's oceans and the ocean floor has
barely scratched the surface. One explanation for this are the harsh
conditions encountered by scientific instruments when deployed into the
depths of the sea. The extreme pressures, the total darkness, the need to
communicate via broad band (possible only over cable), and the high
logistical costs all complicate the deep-sea use of technical systems.
Robotic fish
@ University of Essex
- In nature, fish has astonishing swimming ability after
thousands years evolution. It is well known that the tuna swims with high
speed and high efficiency, the pike accelerates in a flash and the eel could
swim skilfully into a narrow hole. Such astonishing swimming ability
inspires us to improve the performance of aquatic man-made robotic systems,
namely Robotic Fish. Instead of the conventional rotary propeller used in
ship or underwater vehicles, the undulation movement provides the main
energy of a robotic fish. The observation on a real fish shows that this
kind of propulsion is more noiseless, effective, and manoeuvrable than the
propeller-based propulsion. ...
Autonomous Underwater Vehicles (AUVs) a.k.a. Gliders
@ Rutgers University
- The Slocum Coastal Electric Glider (Webb Research
Company, Falmouth, MA, Figure 1) is an autonomous underwater vehicle that
converts changes in vehicle buoyancy to vertical motion. A pair of fixed
wings provides forward momentum to move horizontally through the ocean.
While the majority of the glider is reserved for glider mechanics, battery
storage and communication equipment, a section is devoted exclusively to
scientific payload. A suite of miniaturized physical and bio-optical
instruments, which measure in situ water properties including temperature,
salinity, and the absorption and scattering of light in the water column,
have been and are currently under development for placement in the glider’s
science payload bay
SAUVIM
@ University of Hawaii at Manoa
- ISAUVIM is built around an open-framed structure
enclosed by a flooded composite fairing. With six aluminium pressure vessels
for housing the electronics, it has been studied in order to facilitate
high-depth upgrades.
Its movement is controlled by eight thrusters located around the center of
mass. The four vertical move the vehicle in the Z-axis (heave); the two,
internally mounted, horizontal thrusters move the vehicle in the Y-axis
(sway); and the two, externally-mounted, horizontal thrusters move the
vehicle in the X-axis (surge).
The lower frame houses only the NI-MH battery pack, while the upper frame
hosts all the essential electronics, visual hardware, navigation and mission
sensors in six cylindrical pressure vessels.
Fish Robot
@ King Mongkut's University of Technology
- Currently, the phenomenon of fluid flow for fish and
aquatic animals swimming is unknown. Fish and aquatic mammals propel
themselves differently from human. Understanding their propulsion systems
could provide us a new technology.
This research, Institute of Field Robot (FIBO) uses the yellow-fin prototype
tuna to build the robot because of its movement ability at high speed for
longer period, tuna-form mode, which make us believe that its movement will
be the most efficient locomotion mode than other aquatic mammals.
Additionally, the body profile is both symmetrical in horizontal and
vertical plane, which is helpful for finding out the equation of motion.