• Brief history

• Archimede VI

• Past events

• Budget 2012 - 2013

• Team members & competition crews

• Design• Hydrodynamic• Fins• Mechanical

• Conclusion & Questions

International Submarine Races # 12 – Team Archimede 2/20

Presentation overview

• Founded in 2001

Category Events Max speed

• Archimede I 2 people prop HPS 2002 2.9 knots• Archimede II 2 people prop ISR 2003, HPS 2004 n/a• Archimede III 2 people prop ISR 2005 5.225

knots• Archimede IV 1 person prop HPS 2006, ISR 2007, 2009 6.473

knots• Archimede V 1 person prop ISR 2011, EISR 2012 6.298

knots

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Brief history

• Archimede VI 1 person prop ISR 2013 ? ? ?

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Archimede VI (1/3)

• Main innovations

• New infusion-composite hull• Smaller, less surface/friction drags, faster

• Polycarbonate window

• Polyurethane fins by liquid plastic molding

• Sonar

• Higher construction efficiency• Low cost processes• Investments in tools

• Looking for speed !

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Archimede VI (2/3)

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Archimede VI (3/3)

General

Overall Length 131,5 in / 3340 mm

Hull max diameter 28,5 / 723 mm

Inside Volume 20,34 ft3 / 0,576 m3

Dry weight (including air tank) 200 lbs / 90,72 kg

Propulsion

Technology Single-propeller

Propeller optimal speed 950 rpm

Number of blades 2

Performance

Design speed 7,1 kts / 3,65 m/s

Fins

Profile Reference NACA0010

Number of fins 4

Reference Area 75,95 in² / 0,049 m²

Gearbox

Design Cadence 80 rpm

Maximum Speed ratio 13

Steering system Mechanical

•2 co-events VP

•Communication

• New & updated website (www.polyarchimede.com)• Use of social media (facebook)

•Past events since ISR 2011

• Montreal Polytechnique visibility and recruiting activities• Montreal Eureka 2012 & 2013 science festival• Montreal Classic Boat Festival• 2012 European International Submarine Races in Gosport, UK

(with Archimede V)

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Past events

•Total budget : $ 16,000

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Budget 2012 - 2013

• Travelling expenses : $ 6,000

• Scuba diving equipment : $ 5,000

• Power tools : $ 2,000

• Submarine materials : $ 3,000

• Archimede members

International Submarine Races # 12 – Team Archimede 9/20

Team members & competition crews

• Competition crews

• Dry crew• Preparation• Divers assistance• Reparations• Sub towing

• Wet crew• Dive leader• Pilot• “Balancers”• Communication with

dive & race supervisors

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Design – Hydrodynamic (1/3)

Length 3302 mm / 130 in

Height 723 mm / 28,5 in

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Design – Hydrodynamic (2/3)

OUTSIDE LAYERS

INSIDE LAYERS

• Hull – Composition

• Sandwich composite : increased bending strength• Corecell A-foam (closed-cell nautical foam) for buoyancy

• Additional materials to the hull• Polycarbonate for the window• Plastic, steel and polyurethane for the fins• Steel, corecell and epoxy fitting for the rear shaft• Polycarbonate “pucks” for crewing fixation

• Hull – fabrication

• Counter-mold (plug) • Mold• 2 x infusion hull halves with vacuum• Assembly of the halves with 2 additional vacuum infusions

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Design – Hydrodynamic (3/3)

• Fins – design

• Removable 2 sets of fins• A – Control designed• B – Speed designed

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Design – Fins (1/2)

• Fins – fabrication

• Model -> Silicone rubber mold -> Polyurethane parts• Stronger top fin vs 3 other fins (less fragile)

• 2-3 hours to get a new fin from scratch !

• Huge advantages over “traditional” composite fins•Faster•Cheaper•Higher surface quality

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Design – Fins (2/2)

• Direction• One hand pilot control• Bike cables tightly linked to the fins

• Better precision• Remember Archimede 5…

loosely cables on big pulleys !

• Referencing system – during construction• Laser • Precise positions of inner systems

• Referencing system – in competition• Visual control through 360 window• Sonar aid

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Design – Mechanical (1/2)

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Design – Mechanical (2/2)

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Design – Mechanical (2/2)

We had some issues:

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Conclusion

Sorry for the presentationdelay yesterday…

• Pilot not coming due to medical surgery• Dive master burn out• VP-logistic cancelled 10 min before departure• 2 other members cancellation in the past two weeks

• Team leader in civil engineering!

And last but not least…

So…

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Conclusion

We continued our work on evenings at the hotelin order to finish the submarine !

Any questions ?