ucsd human powered submarine team stanley
DESCRIPTION
2009. UCSD Human Powered Submarine Team Stanley. 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 - PowerPoint PPT PresentationTRANSCRIPT
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UCSD Human Powered Submarine
Team Stanley2009
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Team History
• 6 previous Submarines
• Brother Submarine: Odin’s Rage
• Team:
– Faculty
– Non-Faculty
– Undergraduates
1999 – 2000: “Subsonic” Set new world record speed of 3.47 knots
New unique non-propeller driven design. Utilizes an “underwater rowboat” motion
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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
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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.
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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.
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Hull• Ready made solution
• Classically streamlined body
• Secondary sections – Special order acyclic nose
cone– Hand rolled aluminum tail cone
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Pool Testing
• Purpose of pool test – Establish hull strength– Find
• Center of pressure• Center of gravity
– Pilot ergonomics– Subs water weight
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Computational Modeling • 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
Estimated top speed3.4857 Knots
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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
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Future Goals• Lift based
propulsion• Sophisticated
emergency float• Minimize drag from
hull and propulsion• Computer controlled
guidance system
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Lessons Learned
• Matlab simulation• Materials science• Fluid mechanics• Industrial engineering
• Professionalism
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Sponsors
US Grants