fau ocean engineering

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TALON 1

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FAU Ocean Engineering. TALON 1. Abstract. Over the past few years, the FAU Human Powered Submarine Club has been working to improve their one-man sub, Talon 1 . Through continually refining and improving Talon 1 , it has remained to be a strong contender for multiple ISR competitions. - PowerPoint PPT Presentation

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Page 1: FAU Ocean Engineering

TALON 1

Page 2: FAU Ocean Engineering

AbstractOver the past few years, the FAU Human

Powered Submarine Club has been working to improve their one-man sub, Talon 1.

Through continually refining and improving Talon 1, it has remained to be a strong contender for multiple ISR competitions.

The mission of this project was to create a human powered submarine that achieves maximum speed in a short time over a straight distance.

Page 3: FAU Ocean Engineering

IntroductionThe FAU’s Human Powered Submarine Club

was founded in 1989, and through the years has competed in nearly all of the International Submarine Races.

At the 11th ISR, Talon 1 received 4 awards:Absolute SpeedFastest in PropellerSmooth Operators2nd Overall

Page 4: FAU Ocean Engineering

Hull DesignElongated

Gerler shape10 ft long, 25.75

in tall, 21 in wide

Figure 2: CFD Modeling 3D View (Above) CFD Modeling Top View (Below)

Page 5: FAU Ocean Engineering

Main HatchLocation chosen based on CFD modelingAccommodates most materials and diversReinforced to withstand pressure

differential3 spring loaded latches

Page 6: FAU Ocean Engineering

Service and Dead Man Buoy HatchesLocated on the aft of the hull

Used Bernoulli’s equation:58 lbs force on rear service panel32 lbs force on dead-man hatch

Page 7: FAU Ocean Engineering

FairingsLocated on top, bottom, port

and starboard surfaces

Major source of drag

Made with 2-part female moldEasy Flo 60 Liquid Plastic1/2” threaded aluminum bars

Page 8: FAU Ocean Engineering

Windows

4.96 ft2 of acrylic windows5 in band for aft visibilityNosecone for forward visibility8 x 7 in window for downward visibility

Page 9: FAU Ocean Engineering

Hull FabricationPrefabricated sections from

AUV

Fusion of 4 sections

Total weight 150 lbs

Figure 8: Hull Fabrication Reference

Figure 9: Hull Fabrication. Pre-fabricated hull from AUV was originally yellow

Page 10: FAU Ocean Engineering

Static Trim and StabilityWithout foam, sub is 80 lbs negativeAddition of 1.75 lb/ft3 of extruded polystyrene

foam provides for neutral buoyancy

Page 11: FAU Ocean Engineering

Propeller TorqueProduces a maximum

feedback torque of 18.3 Nm

Designed to have a heavy side and buoyant side to counteract torque

Page 12: FAU Ocean Engineering

Propulsion SystemStandard bike configuration with the addition

of a sealed gearbox154 mm crank arms and twin blade propellerTesting of pilots revealed the a speed of 120-

156 rpm, with a lowest expected speed of 5 knots

Egg-beater style pedals allow pilot to push and pull on pedals

Page 13: FAU Ocean Engineering

GearboxRecycled from the FAU-boatConstructed from aluminum block1:3 steel ground spiral bevel and pinion gear

system powers the shaft connected to the propeller

Propeller is a long two bladed propResembles airplane propLack of skew

Page 14: FAU Ocean Engineering

Control SystemsDesigned to minimize separation and flow

disturbanceFlat leading edge7 degree rake

Fins positioned at the edge of the sub’s boundary layer and outside of prop radius

Page 15: FAU Ocean Engineering

JoystickFins are controlled by 2

axis joystickJoystick is connected to

fins by Teleflex cablesCables can push and pull

Page 16: FAU Ocean Engineering

Design AspectsDesigned to be easily manufactured,

assembled, transported, and repairedMost manufacturing was completed on FAU

Boca Raton campusLocal sponsors helped for more complex or

specialized tasks

Page 17: FAU Ocean Engineering

Assembly and TransportIt takes 6 man hours to completely assemble

and prepare the submarineAll systems are attached to the hullVelcro strips allow for easily removable foamTransported on composite cartPropeller easily removed and stored during

transport

Page 18: FAU Ocean Engineering

ReproducibilityUsed common materialsNosecone made of

polycarbonateSystems mounted with

large easily removable brackets to allow for repair or modification

Gearbox quickly disassembles

Page 19: FAU Ocean Engineering

Safety3 ft3 pony bottle strapped to pilot

in case of emergency“Dead-man” handle on joystick

releases buoyQuick releases on the restraint

strapsBright orange paint on fins and

propellerStrobe light

Figure 20:Steering joystick with dead man handle in use

Figure 19: Hatch and Buoy

Page 20: FAU Ocean Engineering

ErgonomicsRedesigned 80 ft3 tank placed directly under

the pilotGearbox moved to allow for taller pilotsAdjustable restraint strapsAir supply gauge located in front of pilotDive computer and compass help to keep

pilot on course especially for beach test runs

Page 21: FAU Ocean Engineering

ConclusionTalon 1 has evolved through several

generations of club membersDesign modifications have kept it a major

contender through multiple competitionsIt has been an invaluable source to learn

many skill sets and a lot of fun!