The Computer Model


View of computer model

The computer model of the USS Holland began in 1992 as a training exercise. It was built using Electric Boatís computers and Dassaultís CATIA software. The original model was built with CATIA version 3 using mockup (approximate) solids, but it has evolved as Electirc Boat implemented new versions of CATIA and additional Product Lifecycle Management (PLM) tools. The current version of the computer model consists of more than 2200 piece parts.

Based on the available information, some portions of the submarine can be modeled to the level of rivet holes. Unfortunately, other portions remain a complete mystery. Although the plans and specifications refer to a bilge pump, a hydraulic pump, fans and lights, no details have been uncovered to date.


The Modeling Process

The individual parts of the submarine were modeled by combining 3D primitives such as cubes, cylinders and offset surfaces. The parts were stored in Electric Boatís production database and organized into a system based product structure.

SS1-100 Structure
    SS1-110 Hull Structure
        SS1-111 Hull Plating
        SS1-112 Hull Framing
    SS1-120 Watertight Enclosures
        SS1-121 Transverse Structural Bulkheads
        SS1-122 Trunks and Enclosures
        SS1-123 Built-in Tanks
    SS1-130 External Structure
        SS1-131 Superstructure
        SS1-132 Appendages
    SS1-140 Hatches
        SS1-141 Access Hatch
    SS1-150 Foundations
        SS1-151 Thrust Bearing Foundation
        SS1-152 Auxiliary Machinery Foundation
SS1-200 Propulsion
    SS1-210 Engines
        SS1-211 Gasoline Engine
        SS1-212 Electric Propulsion Motor
    SS1-220 Power Transmission
        SS1-221 Reduction Gear
        SS1-222 Clutches
        SS1-223 Shafting
        SS1-224 Bearings
        SS1-225 Propellers
    SS1-230 Propulsion Control
        SS1-231 Shafting
        SS1-232 Propeller
        SS1-233 Reduction Gear
        SS1-234 Clutches
        SS1-235 Bearings
        SS1-236 Shaft Seals
SS1-300 Electrical
    SS1-320 Power Distribution
        SS1-321 Switchboard
    SS1-330 Electrical Systems
        SS1-331 Lighting System
SS1-400 Control
    SS1-410 Navigation Systems
SS1-500 Auxiliary Systems
    SS1-510 Climate Control
        SS1-511 Ventilation Systems
    SS1-520 Compressed Air Systems
        SS1-521 2000 LB Air
        SS1-522 50 Lb Air
        SS1-523 10 Lb Air
    SS1-530 Oil Systems
        SS1-531 Fuel Oil Systems
        SS1-532 Hydraulic Oil Systems
    SS1-540 Cooling Water System
        SS1-541 Air Compressor Cooling
    SS1-550 Mechanical System
        SS1-551 Diving System
        SS1-552 Steering System
        SS1-553 Anchoring System
        SS1-554 Depth Control System
    SS1-560 Ballast System
        SS1-562 Main Ballast
        SS1-563 Trim System
SS1-600 Outfit
    SS1-610 Deck Fittings
        SS1-611 Mooring Cleats
        SS1-612 Masts
    SS1-620 Gratings
        SS1-621 Weather Deck Gratings
    SS1-630 Furnishings
        SS1-631 Sanitary
SS1-700 Weapons
    SS1-710 Gun Systems
        SS1-711 Dynamite Gun
    SS1-720 Torpedo Systems
        SS1-721 Torpedo Tube
        SS1-722 Torpedo Tube Inner Door
    SS1-730 Weapon Storage Systems
        SS1-731 Torpedo Storage System
        SS1-732 Torpedoes

This computer model has been used to investigate and illustrate the systems on board the U.S.S. Holland and to evaluate Product Lifecycle Management products from IBM and Dassault Systems. Kinematic mechanisms have been defined for the engine, motor, clutches, shafts, hatches, switchboard, rheostats, and some of the valves allowing many routine operations such as propulsion plant operation, loading weapons and firing weapons to be animated and viewed in real time.

1999,2002 Gary McCue

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