The Project The Organization The Submarine – Safety Requirements – Hull – Fins – Drivetrain – Propeller – Steering System – Inboard Computer – Future projects Conclusion and questions 2

Desing a freefloating vehicule that fully encapsulates the racer Direct propulsion Provide safety and lifesupport systems Unpressurized vehicule One person submarine propeller driving 3

ISR #9 – Fastest speed in our category : One person propeller with 6,473 knots – «Forces Avenir» winner : Quebec wide technological and innovation contest ISR #10 – 7th place ISR #11 – Hope to be amongst the best and accomplish fast runs 4

11 students – Mechnical, Electrical and Industrial engineering undergraduate – Canada, France and Tunisia – 1st to 4th year of study to ensure future development of future submarines Each member specially assigned on systems based on experience and interests Three members executive directorate for administrative aspects 5

Pop-up buoy – Reel cable – Pneumatic dead man switch easily reachable Bright orange stickers and lines White flash strobe light Secondary air supply 6

Profile redesign to a circlular section Fluid dynamics analysis with Ansys Fluent NACA axisymetrical Sandwich composite hull – Multi layers of fiberglass – S-Foam corecell for buoyancy Fabrication process – Wet lay-up – Counter-mold (plug) – Mold – Two halves hull joined by additionnal corecell 7

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Theoritical aspect – Drag – Profile – Lift forces NACA

Design with Catia V5 Fixed partMobile partFin shaft 10

Fin thickness reduced Injection technique with bidirectionnal carbon fiber Fixed and mobile parts to reduce stress and induced drag 11

CFD simulation (pathline flow) Convergence analysis FEA and optimization Analysis 12

Results Velocity vectors of water flow around the fins 13

Carbon fiber injection – Halves molded and joined with eposy resin composite 14

Adjustable to fit differents pilots Provide an easy way to adjust the gear ratio Stronger and more reliable than previous propulsion systems 15

Provides 8” of adjustments 16

Three stage transmission – Bicycle transmission – Two helicoidal gear sets (vibration purpose) The bicycle transmission provides adjustment of the gear ratio 17

Ergonomy study for space Verify the ability to operate the propulsion system 18

Forces analysis on the hull to verify the rigidity of the hull under stress 19

Same propeller as Archimede IV Maximize the propeller efficiency – Two blades and minimum BAR ratio to increase the optimal diameter – Faster flow around the tips of the blades – Higher Reynolds number – Best propeller efficiency 20

Reverse engineering process for blades and shroud with the Creaform 3D laser scanning gun Skew distribution specially designed for the wake and pressure distribution of the bassin in depth 21

Fixed nozzle around the propeller – Assembled with pre-swirl stators to balance the rotating flow of to fluid through the propeller disk MARINE profile for the shroud – Minimum clearance between blade tips and inner surface 22

Great manoeuvrability with small corrections One hand control for pitch and yaw axes Entirely mechanical system: easy to set or repair Tested to be effective at 2 knots and above 23

AA Batteries Powered – Innovation: with Hall effect ON/OFF system – Transistor controlled power 128 X 240 dots LCD Screen – Two-angles display (Pitch and Roll) – Crank RPM speed – Recordable Max speed 24

Custom PCB – Designed with Eagle software – Assembler and C language programming Waterproof Box 25

Short term – Electrical communication system – Contra-rotating propeller – Injection molding process for the next hull Long term – Participate and gain experience in non-propeller categories 26

University pool – Balance – Communication 75 % divers Better run yesterday than overall performances 2 years ago 27

Summary Main innovations – Composites – Adjustable drivetrain – Fins 28

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