Growth InnovationsKite Group

Final Project Presentation6 April 2006

Chris BovenTrever CarnesBrandon HenleyEmmanuel Zoubovsky

IntroductionIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Design a System to Control a Traction Kite for Sailing Applications

Kite BackgroundIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Upper Level Winds

More Stable 3 Lines

Sides: Turning Middle: Pitch

Each Line Controlled by a Crewmember

Specifications Line Speed: 5 ft/sec (turning) Line Loads: 1500 pounds Section Weight: < 200 lb Power Source: 12-volt batteries Controlled using one hand

IntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

ConceptsIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Ideas Electric Capstans Hydraulic Motors Individual Gearboxes Planetary Systems

Why Planetary Systems? Collective Control Turning Advantage Stress Distribution

CalculationsIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Gear Selection Turning Line Speed: 5.1 ft/sec Gear Stresses: 1.2 Factor of Safety

Power Consumption In/Out: 10.6 HP Pitch: 2.1 HP Does Not Consider Friction

Final Design - GearsIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Planetary Gearsets Multiple Inputs

Sun Gear Outer Ring

Single Output Planet Carrier

Worm Gears Speed Reduction Backfeed Prevention

Final Design - GearsIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Inputs Turning

Differential

Pitch Angle of Attack

In/Out Kite Orientation

Unchanged

Final Design - FrameIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Welded Steel Frame Angular Members

Prevent Collapse Allow Motor Access

Larger Members Support Main System

Final Design - ElectronicsIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Off-the-Shelf Components RC Transmitter RC Receiver RC Interface Motor Controller Motor

Manufacturing - LatheIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Turned on Lathe 11 Shafts 3 Spools 15 Round Plates 36 Spacers

Manufacturing - MillIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Machined on Mill 30 Plates 3 Keyways 31 Gear Mods

Manufacturing - WeldingIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Total Shop Time: 590 Hours

AssemblyIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Used: 400+ Fasteners

Broke:20+ Allen Wrenches

Time Spent: 60 Hours

Testing – Fit TestingIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Fit Shafts in Bearings Size Spacers to System Align Bearings Adjust for Oversized Material Compensate for Bowed Plates File Damaged Gear Teeth

Testing – No-Load TestingIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

All Motors Running Line Speed of ~5

ft/sec in Turning In/Out Caused Slight

Backfeed

RC Interfaces Ceased to Function

Testing – Loaded TestingIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

This Page is Under Construction. Please check back at a later date!

Future WorkIntroductionKite BackgroundSpecificationsConceptsCalculationsFinal Design Gears Frame ElectronicsManufacturing Lathe Mill WeldingAssemblyTesting Fit No-Load LoadedFuture Work

Possible Future Projects Lighten the System Make System More Modular Scale Down System Size Make Corrosion Resistant

Questions