A unique two-part architecture and wing
system mounted underneath the craft directly
converts wave motion into thrust. Sandwich
composites based on DIAB cores were chosen
for the ‘hull’ and auxiliary structures of the
Wave Glider to provide a lightweight structure
that is capable of operating in open ocean
scenarios for extended periods of time and in
all seas states. For the composite components,
Liquid Robotics worked closely with Lancair
and IC Structures. Lancair (perhaps better
known as one of the world’s leading manufacturers
of high-performance aircraft) carried
out the structural design work whereas
IC Structures was responsible for manufacture
and assembly.
Solar panels provide electricity for sensor payloads. By continuously harvesting energy from the environment, Wave Gliders are able to travel long distances, hold station, and patrol vast areas without ever needing to refuel.
This means Wave Gliders can travel to a distant
area, collect data, and return for maintenance
without ever requiring a ship to leave port.
Under development for more than three
years, the Wave Glider platform has already
completed over one hundred thousand kilometers
(62,000 miles) of operation and
demonstrated
mission durations in excess of
one year. Over 5 watts continuously available
payload power (dependent
on the season and
location)
is provided by solar panels, generating
86 watts at peak output, connected to an onboard
battery system rated at 665 Watt-hours.
Currently no functional, unmanned persistent
surface vessels are available despite
many government and civilian requirements
for a persistent ocean presence. All current
unmanned surface vehicles require externally
supplied energy for missions longer than a few
days. However, many ocean observation tasks
– climate science, marine life monitoring,
fishery protection and storm warning, etc.
– require equipment to be positioned at the
sea surface for long durations. The Wave
Glider is a new solution, employing innovative
technology
including Diab sandwich
composites to provide a new cost-effective
approach to these missions.
www.liquidr.com
www.lancair.com
www.icsstructures.com/