The journey begins...
The team
Archimede IV2007 resultsSubmarine pros/consPotential amelioration projectsFabrication of the submarine
-Hull design-Propeller and shroud design
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2008 amelioration projectsNew reinforced noseNew fin design & fabrication
Future ameliorationsNew hull designNew propeller system
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Project director : Jonathan BeaulieuPilot & Treasurer: David Ponton-
FournierComposites director& Treasurer: Alexis
PaymentElectronics director : Frédéric BergeronMechanics director : Alexandre BrièreFinance & Marketing director : Maxime
MaillouxFabrication director : Nicolas Bezeau-
Gervais4
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Affiliation École Polytechique de Montréal
Submarine Name Archimede IV
Category 1 person, propeller drivenAcademic Support École Polytechique de Montréal
Length Overall 9‘3/8’’ (2.84m)Maximum Diameter 28"
Displacement 18 ft3 Weight in Air 115 lbs
Color White and Blue
Propulsion System Propeller
Team Leader Jonathan Beaulieu
Team MembersMaxime Mailloux, Frédéric Bergeron, Alexis Paiement,
Nicolas Bezeau-Gervais, Alexandre Brière, David Ponton-Fournier
Team Sponsors
École Polytechnique de Montréal, La Boutique du plongeur, Laval Emballages Creopack International Inc., Montreal Gurit, Les Industries H.L. Plasto Ltée., SKF, CFP Lachine, Rodrigo
Garcia de EDPS Constellation
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Innovative gearbox design
Propeller designed 900 rpm is reachable
Lower drag coefficient with the use of a shroud
Less power loss due to turbulence
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Unefficient fin designFins were too fragile
and broke easily
Hull design verified using finite element methods. The hull not being symmetrical ameliorations are possible.
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Fin designSubmarine overall shapeSubmarine total frontal area due to previous pilot size (6’2” – 100 kg)
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The teamArchimede IV
2007 resultsSubmarine pros/consPotential amelioration projects
2008 amelioration projectsNew fin design/fabricationNew fin installation
Amelioration projects
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Stronger fins, less breakable
Bigger bonding area to the submarine
Longer fins on submarine total length positively affecting submarine stability because of the fixed front part
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Smaller directional fins to increase control and steering of the submarine
More efficient movement of the fin directly affecting submarine stability in water
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2007 nose was entirely fiberglass and very fragile
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2009 nose design has not changed
Nose failure in previous competitions encouraged us to reinforce it
Kevlar coated for 2009 which increases total mechanical resistance
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Hull made out of a layer of corecell between two layers of fiberglass
Hull counterpart made out of foam
Mold then made out of that counterpart
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Shroud made of fiberglass
Designed in accordance with the propeller and submarine
Gives better and more concentrated flow of water
Propeller – Designed by specialists (Nautican) Machined at École Polytechnique de Montréal
Optimized for 900 rpm in accordance to 1:8 gearbox ratio
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Gearbox made out of aluminium plates
Gears from Boston gears made of steel
Ratio of 1:8 connected to bicycled pedals with clips
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Pop-up buoy with deadman switch
Orange stickers clearly indicate release procedures
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New and improved hull designSymmetrical with
reduced drag
Increased gearbox ratio for maximum output speed
New bi-propeller system
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