University%20of%20Florida

1
9th International Submarine Races

• University of Florida
• Swamp Thing

2
Introduction
Interdisciplinary Team ME, AE, EE
Team Leaders Ryan K. Jones Jonathon Jeske
Captains Drive Chad Hodgkins Hull
Jonathon Jeske Controls Charlie
Shupard Propeller Joey Windle
Driver Charlie Shupard
Safety Divers Raphael Diaz Nic Fischer Ryan
D. Jarrett
Chef Brandon Crone
3
Overview Goals

• Obstacles
• Time constraint
• Funding
• Construction location
• No precedence
• Goals
• Bring UF back to this competition
• Allow this program to continue
• Gain design engineering experience
• Abide by ISR standards

4
Design Philosophy

• Keep it simple
• Minimal machine availability
• Machining takes time
• Less moving parts
• Hydrodynamic
• Only the necessary area for driver clearance
• Smooth mold
• Minimal drag
• Maneuverability
• Ergonomically driver friendly
• Ability to adjust abrupt movements
• Appropriately sensitive

5
Design Fabrication Hull

• Ellipsoid shape
• Transom rear and bull nose
• Largest diameter at pedaling motion
• Plug mold
• No wasted fiberglass
• Can be made fairly smooth
• Shell materials
• Fiberglass, bondoglass, bondo putty
• Protective Coating
• Epoxy primer base
• Acrylic enamel paint

6
Design Fabrication Drivetrain

• Chain and Pedal Assembly
• Similar to a bicycle
• Reinforced Parts
• Stronger crank arms and drive gear
• More support for the frame assembly
• 90 Transmission
• Allows an easy connection
• Adjustable final gear ratio
• Driveshaft
• Solid aluminum
• Press fit

7
Design Fabrication Propeller

• Single propeller
• Three blade assembly
• Hub
• Interchangeable parts
• Sturdy assembly
• Blades
• Optimizated using CAD program
• Reusable mold
• Fiberglass cloth construction
• High aspect
• Weight vs. Strength
• Variable pitch
• Driver-controlled

8
Design Fabrication Controls

• Control Surfaces
• Two externally adjustable bow planes
• Two rear rudder planes
• Two rear elevators
• Balsa Wood Structure
• Fiberglass cloth exterior
• Resin coated interior
• Pushrod Controllers
• For each control (rudder, depth)
• PVC rod through PVC sleeve
• Tie rod connectors
• C-bend in pivoting PVC loops
• Removable Fins
• Bow planes held in by one nut
• All others tapped and bolted

9
Design Fabrication Life Support System

• Main Air
• 72 ft3 onboard steel tank
• Smaller in size yet still adequate
• Strapped in for safety and easy positioning
• Backup Air
• 3 ft3 spare air tank
• Allows 57 breaths on the surface
• Personal Harness
• Removable snare drum harness
• Requires no restraints on driver

10
Design Fabrication Safety Systems

• Emergency Buoy
• Sealed, gasketed, plastic container
• Activated via a dead-man switch
• Attached by 50ft of line separate from the
  switch
• Fits flush with the hull for aesthetics
• Strobe Light
• Press-fit into the hull and sealed into place
• Visible for up to one mile underwater
• Flashing rate of once per second
• Door Latch
• Spring-loaded steel tube into a sleeve in the
  door
• Line is run from the tube to the drivers hands
• Windows
• Allow visibility of the driver

11
Testing Training

• Dry Testing
• Driver fitment
• Emergency systems
• Drivetrain alignment and tolerances
• Installation of the control surfaces
• Wet Testing
• Pool test buoyancy, driver fitment, emergency
  systems
• Diving
• Two team members got scuba certified
• Driver is a certified rescue diver

12
Journal Budget

• Photographic Records
• Pictures taken nearly every work day
• Over 1000 photos taken and over 350 logged
• Written Journal
• Plans in effect to keep useful tips and tricks
  for the succeeding teams
• Sponsors
• Attempts at local sponsorship failed
• University of Floridas Mechanical and Aerospace
  Engineering Department
• ASME student chapter at UF
• Overall Budget
• Around 6000

13
Closing Remarks
We are truly greatful for the chance to bring the
Gators back into the International Submarine
Races and compete with other human powered
submarines. The raw learning experience, applied
engineering skills and unveiled perseverance that
bring a project of this magnitude from nothing
but a dream to competitively racing in three
months awards this team its own personal win
regardless of any further outcomes. For us, this
has been about expanding the design project
possibilities for the young engineers at the
University of Florida and so well leave 1
regardless of the scoreboard.
GO GATORS!