1. UCSD Human Powered Submarine Team Stanley
2009

2. Team History
1999 – 2000: “Subsonic” Set new world record speed of 3.47 knots
New unique non-propeller driven design. Utilizes an “underwater rowboat” motion
6 previous Submarines
Brother Submarine: Odin’s Rage
Team:
Faculty
Non-Faculty
Undergraduates

3. Project Management Stanley Plan
Design and Fabricate within 1 years time
Divide the project into 3 constituent parts
Drive Train/Propulsion
Hull
Pool Testing/Computational Modeling

4. Drive Train Design Simple and Effective
Leveraged linear slide system
Historically established propulsion methodology
“Drebel”
Linkage system harnesses pilot’s quadriceps and gluteus maximus in unison.
60 degree Power Stroke
Feathered paddles allow for minimal losses during the return stroke.

5. Drive Train Construction
Unique binding system for pilot’s.
Adaptive paddle mount system allows for propulsive improvement
The break away oars/paddles makes transportation easier as well as creates less of a risk for damage.

6. Hull Ready made solution Classically streamlined body
Secondary sections
Special order acyclic nose cone
Hand rolled aluminum tail cone

7. Pool Testing Purpose of pool test Establish hull strength Find
Center of pressure
Center of gravity
Pilot ergonomics
Subs water weight

8. Computational Modeling
Estimated top speed
Knots
Solving the governing equations of Fluid Dynamics for a complex flow is difficult.
Approximate dominant propulsion dynamics
Matlab Simulation
Momentum transfer
Paddles displace water mass
Water mass travels rearward at average velocity
Average velocity of water mass can be calculated by accounting for forces
Drives trains inertia
Paddle and oar drag forces
Paddle and oar bending due to drag forces
Assumptions
Average Human Power Output
224 Watts for short term (5-10 min’s) bursts
Turbulent flow

9. Safety Features Quick release hatch - just pull!
Simple two-step pilots foot binding release
Spare airs in case the pilot’s main air supply fails
Clearly-marked safety features for support divers
Warning markings on moving boom and paddles

10. Future Goals Lift based propulsion Sophisticated emergency float
Minimize drag from hull and propulsion
Computer controlled guidance system

11. Lessons Learned Professionalism Matlab simulation Materials science
Fluid mechanics
Industrial engineering
Professionalism

12. Sponsors
US Grants