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UCSD Human Powered Submarine Team – Odin’S Rage

UCSD Human Powered Submarine Team – Odin’S Rage. 2009. Team History. 1999 – 2000: “Subsonic” Set new world record speed of 3.47 knots Unique non-propeller driven design. Utilized a “dolphin tail” motion. Project Management. Team Plan Use Brand New Hull

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UCSD Human Powered Submarine Team – Odin’S Rage

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  1. UCSD Human Powered Submarine Team – Odin’S Rage 2009

  2. Team History • 1999 – 2000: “Subsonic” Set new world record speed of 3.47 knots • Unique non-propeller driven design. Utilized a “dolphin tail” motion

  3. Project Management • Team Plan • Use Brand New Hull • Divide the project into parts and create responsible groups • Drive Train • Steering • Fin

  4. 5 layers of fiberglass Cured with “Sun-rez” UV cured resin Acrylic windows Additional 2 layers around belt for strength Knee and Heel blisters to reduce volume Hull

  5. Drive Train Design • Using SolidWorks Cad Software helped us design for simple manufacturability. • Using a bike-chain drive, it moves a piston rod to translate rotational motion to lateral motion • 3:1 Gear Ratio gives us the needed mechanical advantage

  6. Drive Train Construction • 99% of all materials used are either aluminum, stainless steel, or plastic for corrosion resistance. • By modifying store bought bicycle parts we kept fabrication simple. • The lightened aluminum boom is hollowed out to reduce weight but not sacrifice strength

  7. Fin Design • Instead of adapting theoretical biometric fins (fish, dolphin, etc.), use a symmetric airfoil to calculate thrust • The boom sweeps 90° and the fin is free to rotate 90° relative to the boom, which provides great lift and little drag. • Combining high sweeps per minute with a large surface area wing of high aspect ratio gives the best theoretical performance.

  8. Fin Construction • A CAD model from SolidWorks was machined using an automated milling machine (CNC technology) • Ensuring symmetry • Layered with Fiberglass • Fitted with sweep-limiting knuckle.

  9. Steering • Surfboard fins • Morse Cables • Simple actuation • Strong materials • Epoxied Shaft • Wide range of motion • Large Surface area • Avoid Walls!

  10. Controls • Mounting all controls, mechanically, to a single handle • Removes electrical problems • Frees other hand as solid support base. • Hydraulic actuators have been replaced with Morse push-pull flexible cables for corrosion resistance and ease of operation and maintenance

  11. Safety Features • Quick release hatch - just pull! • No need for pilot restraint • Spare air in case the pilot’s main air supply fails • Clearly-marked safety features for support divers • Pop-up buoy attached to dead-man’s switch

  12. Future Goals • Perfect current systems • Minimize drag and maximize power output for faster speed • Computer controlled variable pitch adjustment

  13. Lessons Learned • Press-fits are not truly secure! • Gather Sponsors before academic year • Early training • K.I.S.S.

  14. Sponsors US Grants

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