Stewart Technology Associates (STA) is an engineering
consultancy specializing in marine and offshore structures, fluid
dynamics and many other diverse services and systems. STA offers
a wide range of engineering software and oil/gas process and high
efficiency separator technology.
Stewart Technology Associates (STA) founded in 1986,
provides a wide variety of services in the offshore and
STA undertakes structural dynamic and
of many structures and systems using a variety of
engineering software tools.
Orcaflex is generally the
software of choice for riser design and
riser analysis, mooring
design and mooring analysis,
single point moorings
top tensioned risers, flexible
risers, drilling and production risers,
steel catenary risers
and cable dynamics problems
is a US Agent for Orcina Software, including OrcaLay for
pipe lay analysis and
OrcaBend, for bend stiffener design and analysis. STA has
worked with Orcaflex and Orcina since 1986.
Read more about Orcaflex >>
STA provides jack-up analysis
and jack-up design and review services.
The Irish Sea Pioneer, a 4-legged jack-up was designed
by STA in 1996 and built at Bollinger Shipyard, Louisiana,
for Halliburton. This vessel now works the Liverpool Bay
Project, UK. STA developed a jack-up analysis program, STA
JACKWAVE, beginning in 1987.
STA LIFTBOAT is a
similar program used by liftboat designers for preliminary
design of liftboats. The US Coast Guard also use it for
liftboat design reviews.
STA has proprietary software and designs for
marine training simulators used
for improving emergency preparedness of crews on jack-ups,
semi-submersibles, and liftboats. STA now helps US clients
with CE marking in conformance
with the 98/37/EC Machinery Directive.
Read more about
Liftboat Design >>
Mr. Stewart has acted as an expert witness on many occasions,
providing expert testimony associated with
failures, riser failure,
single point moorings,
pile anchors, anchor failures,
suction pile failures, cable
analysis, and marine collisions and capsize.
An interesting expert
witness marine litigation case involved a bottom-founded
barge that capsized while resting on-bottom of a lake in
relatively benign environmental conditions. This case involved
an understanding of naval architecture, mechanical engineering
and geotechnical engineering, all contributing to an unusual
Read more about
Expert Witness Marine >>
STA clients have been increasingly interested in renewable
energy, particularly from wind farms and wave power systems.
STA has assisted clients with wind farm installations
jack-ups and crane barges.
STA has used Orcaflex for
design and analysis of
wave power systems, and proprietary tension-leg platform-mounted
Read more about Wave
Power Systems >>
Current News ...
Features of Single Point Moorings
[Posted on December 4th, 2013 by Bill Stewart]
Single point moorings are loading buoys anchored offshore, serving as an interconnection for tankers load and offload liquid or gaseous products. The buoy contains a bearing system that allows part of it to rotate around the moored geostatic part. A vessel can be able to weathervane around a buoy’s geostatic part when it is moored to it. A moored vessel can then rotate itself into a dominant environment, with the system minimizing loads on a buoy’s mooring system. This system can also be used when a vessel that one would like to moor is approaching the buoy.
Continue reading about the features of single point moorings >>
Get to know us!
Click Here to view our
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Sheets, which fully outline the diverse services we offer, and
provides a great opportunity for you to become familiar with us
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