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Advanced Vehicle Systems Engineering Group, located in Millersville
Maryland, is staffed and equipped to support military vehicle
systems integration and design. Our focus is to ensure systems
fielded meet required US DoD Military specifications and are tailored
in such a way as to fit the ultimate users ideals.
AVS is fortunate to have Contractor Logistic Support contracts
which, inevitably place these ultimate users in direct contact
with us on regular basis. This has proven to be an excellent feed
back conduit through which we have able to keep up with the ever
changing deployment configurations and operational needs.
Over the years Advanced Vehicle Systems has gained the reputation
as a company who listens and acts. Or to put it in Marine Corps
speak;
‘AVS is a company that leans forward !’
Rather than generating a web site review that continually repeats
capability and can do statements, we’d like to show you
a couple of things that we’ve done. Things that have been
fielded and our customers themselves are, by word and mouth, promoting
to their peers.
To
go from an ‘off the shelf’ product to a fully integrated
weapons platform as that of the Marine Corp’s Interim Fast
Attack Vehicle or IFAV takes time and a good deal of innovation.
Internal & external helicopter transportation, deep water
fording, equipment stowage plan, weapons interfaces, night vision,
communications, best crew ergonomics, reliability and safety.
All have their place in the final system configuration.
The first job and probably the most critical task is to ensure
that the initial base platform is the right one for the job! AVS
is more than just fortunate to work with two legends of the off
road world. The Mercedes Benz G wagon and the Pinzgauer from Automotive-Technik
in the UK. These vehicles are manufactured by companies that have
second to none products and an uncompromising reputation for quality.
AVS engineering group is responsible for ensuring that the correct
build specification is generated and is the optimum configuration
from which to integrate to meet the requirements of the US Defense
Department contract.
AVS brings together through analysis, evaluation, consultation
and design a system that meets spec; that can be both fielded
and supported.
One such case is illustrated below where AVS re-designed a complete
front bumper system and the method of attachment to the vehicle
frame. The design remit was to achieve; full compliance with Mil
Std 209J Transportability, full frontal vehicle protection, method
for quick winch attachment and removal, rapid recovery points,
helicopter lift rings, HMMWV recovery interfaces, provide safe
high lift jacking points, be of minimum weight. These bumpers
are now produced for us in the United States by Fey Engineering
of California.
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CASE
STUDY: On initial fielding the IFAV was integrated with
an excellent heavy weapons pedestal from Military Systems
Group of Nashville, a renowned company for their designs
and products used predominantly in the boat and ship world.
As can be seen in the picture to the right however, the
system had problems when firing transverse to the vehicle.
Due to the narrow confines of the vehicle the gunner was
hanging over the side, especially when firing the M2 50
Cal Heavy Machine Gun.
We needed to identify a method where by the operator could
be moved back into the vehicle without adding additional
structure, such as a turret configuration. That would conflict
with the vehicles’ ability to be flown internal to
the MH 53 E helicopter.
Following some various design iterations the design result
was the AVS ‘Off Set’. Essentially an arm, which
moved the weapon away from the centerline of the pedestal
by sum 14 inches, maintaining good elevation, T&E interface,
removable for internal flight, relatively light weight and
most importantly, safe.
Moving the weapon away from the centerline by 14 inches
isn’t as easy as it sounds, after all the 50 Cal has
a recoil of over 1000lbs. To finally achieve the correct
geometry, materials and fabrication methods the final design
followed an iterative development cycle using state of the
art 3d CAD (Solidworks®) and Finite Element Analysis
software (COSMOS® & COSMOS/M®). Structural analysis
assessed both linear and non-linear load paths throughout
the final assembled system.
Prototypes were then tested by Crane Naval Surface Warfare
Center simulating over 150,000 firing cycles.
These
systems are produced for us by Bollinger Shipyards of Louisiana.
So
successful the design that the ’Offset” system
has been integrated across the IFAV fleet, HMMWV and some
heavy vehicles via custom made interface plates.
Adapters are now available for interface to both M240G &
M249 Light Machine Guns. |

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AVS
represents the Automotive-Technik ‘Pinzgauer’
military vehicles for the United States. As a part of the
engineering function accurate models are necessary to provide
a platform from which various integrated applications can
be quickly assessed and as required, without the need to generate
mockups or expensive prototypes. These models are generated
in Solidworks® and can be configured in any desirable
manner to carryout preliminary design and feasibility studies.
Assessments, in addition to being visually representative,
are used to provide accurate FEA models, volume displacement,
mass, centers of gravity, potential interferences, design
drawings etc. These models, as a system is fielded provide
for excellent graphics that supplement technical manuals and
support documentation.
Not only are the vehicles modeled, all ancillary equipment
is available to us from our in-house equipment libraries.
Modeled equipments include all our trailers, weapon systems,
radio systems, various ammunition storage containers, water
and fuel cans, various jacks, compressors, special tools etc. |
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Advanced
Vehicle Systems Engineering group have gained extensive
experience in the design and integration of equipments
to be transported both internally and externally by helicopter.
In these efforts our facility location in Millersville
MD has proven ideal. Patuxent River (NAVAIR) is an hour
south, Aberdeen Proving Grounds an hour north and CADEROCK
an hour west.
To achieve best design, we have generated accurate computer
models of both the MH 53 E and V22 Osprey to ensure optimum
tie down patterns, CG placement and associated stress
analysis.
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