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University of Bath - Sulis

University of Bath - Sulis. Introduction. Design Concept Hull Transmission Propulsion – Propeller Propulsion – Non Propeller Safety Control Ergonomics Buoyancy. Design Concept. Dual propulsion Evolution from Seabomb Advantages: Reduced friction Improved visibility

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University of Bath - Sulis

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  1. University of Bath - Sulis

  2. Introduction • Design Concept • Hull • Transmission • Propulsion – Propeller • Propulsion – Non Propeller • Safety • Control • Ergonomics • Buoyancy

  3. Design Concept Dual propulsion Evolution from Seabomb Advantages: Reduced friction Improved visibility Stroke length increased Reduced inertial losses Disadvantages: Increased complexity Increased cost

  4. Hull Revolved NACA 0012

  5. Transmission Bevel Gearbox Scotch yoke sprocket Chain between gearbox and Scotch Yoke Linear Bearings Bicycle pedals and chain drive Aerofoil support rails • Dual output • Double scotch yoke

  6. Propulsion - Propeller Design point of 5.0knts Speed estimated with different propellers Probable 4.5knts maximum speed Final propeller provided by Duncan Propellers Ltd. [Picture of propeller]

  7. Propulsion – Non Propeller Variable passive pitch limiter Vary fin flexibility Vary aspect ratio

  8. Safety Escape hatch Strobe Antibiomimetic colour scheme Safety buoy Viewports

  9. Control Foreplanes – evolution from Seabomb

  10. Ergonomics Test rig CAD model

  11. Buoyancy Removal of variable buoyancy Closed cell high density styrofoam

  12. Questions Thanks very much for listening, any questions?

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