From ARVP
[edit] Restrictions
- Dimensions:
- 1.83 m x 0.91 m x 0.91 m ( 6' x 3' x 3' )
- Weight:
- Target Dry - 38 kg ( 84 lbs )
- Max - 50 kg ( 110 lbs )
- All parts of the AUV must be underwater
- No communication with AUV (including GPS)
- 5 minutes to prepare, 15 minutes to "perform"
- must fit into sling/harness (which means we will also need to design a sling)
- Clearly labeled kill-switch (much like Ursa Minor's)
- buoyant to 0.5% of mass of AUV once kill switch has been activated
[edit] Materials
- Acrylic
- density: 1.47*10^-6 kg/mm^3
- good tensile, poor impact
- Polycarbonate
- density: 1.49*10^-6 kg/mm^3
- good tensile, excellent impact
- Fiberglass
- density: 1.86*10^-6 kg/mm^3
- excellent tensile, excellent impact
- ABS
- density: 1.53*10^-6 kg/mm^3
- good tensile, excellent impact
- use indoor only
- White Propylene
- density: 1.53*10^-6 kg/mm^3
- good tensile, good impact
- use indoors only
- Aluminum
- density: 2.7*10^-6 kg/mm^3
- Don't count this guy out!
- It's more robust that plastics and isn't prone to cracking at holes or notches.
- It can also be welded to form a strong, water-proof seal.
[edit] Design
- framing (80-20 Beams, composite)
- propulsion (thrusters, control surfaces)
- electronics enclosure/housing
- waterproofing
- submarine dynamics/kinetics (CG, buoyancy)
