ucsd human powered submarine team – odin’s rage 2009
TRANSCRIPT
![Page 1: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/1.jpg)
UCSD Human Powered UCSD Human Powered Submarine Team – Odin’S RageSubmarine Team – Odin’S Rage
20092009
![Page 2: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/2.jpg)
Team HistoryTeam History
1999 – 2000: “Subsonic” Set new world record speed of 3.47 knots
Unique non-propeller driven design. Utilized a “dolphin tail” motion
![Page 3: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/3.jpg)
Project ManagementProject Management
Team Plan– Use Brand New Hull– Divide the project into
parts and create responsible groups• Drive Train• Steering• Fin
![Page 4: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/4.jpg)
Hull Hull
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
![Page 5: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/5.jpg)
Drive Train DesignDrive 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
![Page 6: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/6.jpg)
Drive Train ConstructionDrive 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
![Page 7: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/7.jpg)
Fin DesignFin 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.
![Page 8: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/8.jpg)
Fin ConstructionFin 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.
![Page 9: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/9.jpg)
SteeringSteering
Surfboard fins Morse Cables Simple actuation Strong materials Epoxied Shaft Wide range of motion Large Surface area Avoid Walls!
![Page 10: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/10.jpg)
ControlsControls
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
![Page 11: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/11.jpg)
Safety FeaturesSafety 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
![Page 12: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/12.jpg)
Future GoalsFuture Goals
Perfect current systems
Minimize drag and maximize power output for faster speed
Computer controlled variable pitch adjustment
![Page 13: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/13.jpg)
Lessons LearnedLessons Learned
Press-fits are not truly secure!
Gather Sponsors before academic year
Early training K.I.S.S.
![Page 14: UCSD Human Powered Submarine Team – Odin’S Rage 2009](https://reader035.vdocuments.site/reader035/viewer/2022062322/56649e535503460f94b49d8b/html5/thumbnails/14.jpg)
SponsorsSponsors
US Grants