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RiverShark. HSRW Submarine-Team, Germany 2013. RiverShark. The Hull The Concept The Fins The Drive The Arms The Scale The Motion The Improvement The Pitch Limiter. The Springs The Idea Safety Features Problems . . . Failed Designs Thank You ISR. The Hull. The Concept. The Fins.

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RiverShark

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Rivershark

RiverShark

HSRW Submarine-Team, Germany

2013


Rivershark1

RiverShark

  • The Hull

  • The Concept

  • The Fins

  • The Drive

  • The Arms

  • The Scale

  • The Motion

  • The Improvement

  • The Pitch Limiter

  • The Springs

  • The Idea

  • Safety Features

  • Problems . . .

  • Failed Designs

  • Thank You ISR


The hull

The Hull


The concept

The Concept


The fins

The Fins


Biomimetic fins

BiomimeticFins

  • inspired by sailfish

  • chord 20 cm / 160 cm span -> 1:8 aspect ratio

  • max. thickness 25 mm


Biomimetic fins1

BiomimeticFins

wing profile

  • NACA 0020 airfoil

  • angle of attack 15°-25°

  • lift coefficient 1.89 -3.08


Biomimetic fins2

BiomimeticFins

fin material

  • glass fiber reinforced polyurethane foam(Coosa nautical 20 / COOSA Composites LLC)

    • high strength to weight ratio

    • 45% lighter than plywood

    • density of 320 kg/m3


Biomimetic fins3

BiomimeticFins

  • fin material cut by CNC

  • fiberglass sheet in midsection as frame


The drive

The Drive


The arms

The Arms


The scale

The Scale


The motion

The Motion


The improvment

The Improvment


The pitch limiter

The Pitch Limiter


The springs

The Springs


The idea

The Idea


Safety features

Safety Features

  • Floating hatch - Diver

  • Breakable hatch - Shoes

  • Easy access windows

  • Non-jamming buoy

  • Emergency Air


Problems

Problems . . .

  • Lower Fin Trolley

  • Wobbling Mechanism

  • Front End Buoyancy

  • Sharp Fin Tips

  • Buoy Relocation


Failed designs

Failed Designs


Thank you isr

Thank You ISR


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