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Who We Are

Who We Are. SUBC is a group of undergraduate engineering students from the University of British Columbia Team Goals Design , build and test a human powered, flooded submarine Promote UBC and UBC student teams Race at the 11th International Submarine Race in Bethesda Maryland.

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Who We Are

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  1. Who We Are • SUBC is a group of undergraduate engineering students from the University of British Columbia • Team Goals • Design , build and test a human powered, flooded submarine • Promote UBC and UBC student teams • Race at the 11th International Submarine Race in Bethesda Maryland

  2. Design Philosophy • A Low key environment, with members who are there to learn and build, while having fun • Keep as much design and manufacturing in house as possible • Have reasoning behind every design decision

  3. How to get there

  4. Project Phases • There are 4 key phases to the project • Preliminary Preparations • Goal setting, Fundraising, Certification • Design • NACA Aerofoil, Wind tunnels, Modeling • Manufacture • Fiber-glass lay-up, system manufacturing, Aesthetics, Safety, Ergonomics • Execution • Planning for race day, Pilot preparation, Organization and communication

  5. Gearbox • The gearbox was inherited from a previous Capstone Design Project • Bushings were chosen for their corrosion resistance • Gear set-up enables counter-rotating propellers

  6. Hull Design • 2D Approximations • NACA data • 3D CFD Analysis • RANS simulations of 5 submarine hulls Residuals Force Plot

  7. Dry, Paint, and Install COST Develop Shape Dry paint and Install Dry, Paint, and Install Hand Lay Fiber-glass and composites Epoxy, resin and fiberglass a smooth female mold over plug Outsource Plastic Mold for Lay-up FINISHING QUALITY Cut Profile Outsource Lay-up procedure toa Professional Deliver CAD files to CNC cutter to develop a smooth Plug Use profile to Hot-wire cut a plug Cut Profile TIME CONSUMPTION Form a sheet of plastic by heating and inflating it Hull Manufacturing -Perform an analysis of pro/cons of each method -Assign a weighted value to each pro/con -Decide on a process using weighted decision matrix, past team advice & industry -Optimize!! -Begin manufacturing -Kevlar/Carbon Body with Ribs and stiffeners -2 piece design

  8. Fin Design • Building on • airfoil research • Submarine control research • Low Aspect Ratio wing/fin research • CFD analysis, in cooperation with CD-Adapco

  9. Fins Used • Windsurfing fins modified for submarine use • Impact resistant Plastic • Fit with our teams time constraints • Initial sizing estimates used for fin sizing

  10. Ergonomics and Life Support • Optimizing the “human factor” • Getting the most power out of our pilot as possible • Ensuring pilot and diver safety

  11. Safety Requirements

  12. Ergonomics • Area around pilot • Hatch egresses • Handlebars/ steering

  13. Testing • Two Separate Pool times • Effective for learning what worked and what didn’t • Had free movement at end of second session

  14. Budget • Kept costs low through in kind sponsorship and in house manufacturing • Use resources effectively

  15. The Complete Submarine • Systems that work together • Safe and effective • Redundancy • Speed

  16. Questions Thanks to Our Sponsors Visit us at blogs.ubc.ca/subc/ or Drop by here at ISR #11!

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