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Final Design Team 6
December 2nd, 2010
UAV Team SpecializationsDavid Neira – Power & Propulsion Josiah Shearon – Materials Selection & FabricationMatthew Martin – Fuselage ConfigurationJosh Mellen – Electronics & Control (Hardware)TJ Worden – Wing DesignOna Okonkwo – Electronics & Control (Software)
Presentation OutlineInterim Design ReviewFinalized Design OverviewFinalized Design BreakdownFuture WorkQuestions
Interim Design Review
Center of Gravity Optimization
Payload DistributionMission 3Mission 2
UAV/Payload Disassembled
Side
Top
Materials/FabricationMaterials used
Carbon fiber Vinyl Ester Matrix
Balistics grade KevlarCore
Foam Nomex
Balsa woodFabrication Techniques
Vacuum BaggingMold Making
Aircraft SpecificationsWingspan: 46.7 inAspect Ratio: 6.67 inTailspan: 10 inVertical Stabilizer: 5 inOverall Length: 30.8 inEmpty Weight: 1.52 lbsMax Loaded Weight: 5.27 lbs
Wing Leading Edge-Stress
Wing Leading Edge-Deflection
Wing Attachment-Stress
Wing Attachment-Deflection
Wing Attachment-Stress
Wing Attachment-Deflection
Landing Gear Stress Analysis
Rear Landing GearMax. Stress: 11 MPa
Battery AnalysisElite 1500 Cell (1.2V, 1500 mAh)
Average Capacity: 1350 mAhMaximum Current Draw: 20A
Limited by Fuse 15.2A Motor Current Draw Minor draw from other components
Battery life at 20A draw1350 mAh: 4.05 minutes1500 mAh: 4.5 minutes
Battery Analysis
Battery AnalysisRisk Assessment
Battery Capacity not sufficient for applicationCell Failure may lead to insufficient or no voltageRecharging battery may reduce battery performance
Future Work: PropulsionsWind Tunnel Testing
Determine Dynamic Thrust CurveStatic Endurance Test
Determine Component Compatibility
Future Work: Aerodynamics and Control/StabilityImplement CFD on current model
Ensure minimal dragDevelop mission model for each phase of flight
Predict forces, moments, aircraft stateImplement AVL/XFLR analysis
Simulate aircraft during phases of flightEnsure empennage optimality.Appropriately size wing and tail control surfaces.
Future Work: ProgrammingVisual Studio 2010
Previous experience with the softwareEasily accessible (free of charge)Handles both C and C++
C languageMost familiarMost common used language for servo programming
Future Work: ProgrammingItems in possession
LPR510AL Dual-Axis (Pitch and Roll or XY) Gyro with ±100°/s and ±400°/s RangersMicro Maestro 6-Channel USB Servo Controller
Risk analysisDebuggingThorough possibilities evaluation
Future Work: Flight TestingData Log Flight Maneuvers
Air Speed SensorMotor Temperature SensorMotor RPMCurrent DrawVoltageAltitude SensorGyroscope
Optimize
Questions?