flapping wing mav
Post on 22-Jan-2016
38 Views
Preview:
DESCRIPTION
TRANSCRIPT
Flapping Wing Flapping Wing MAVMAV
Group 13 – NASA AmesGroup 13 – NASA AmesParker CookParker Cook
George HellerGeorge HellerJoshua NguyenJoshua NguyenBrittney TheisBrittney Theis
The CustomerThe Customer
- Dr. ShihDr. Shih- Funding to be Funding to be
provided by the provided by the NASA Ames facilityNASA Ames facility
The ProblemThe Problem
- We are tasked with designing and We are tasked with designing and building a flapping-wing micro aerial building a flapping-wing micro aerial vehicle (MAV) that is constrained by vehicle (MAV) that is constrained by certain specifications provided by the certain specifications provided by the customer and inspired by the customer and inspired by the European Micro Air Vehicle European Micro Air Vehicle Conference and Flight Competition.Conference and Flight Competition.
Project Scope and NeedsProject Scope and Needs
OperationOperation SpecificationSpecification
Flight TypeFlight Type Flapping WingFlapping Wing
Flight TimeFlight Time 10mins10mins
Ground ClearanceGround Clearance 5m5m
Flight DistanceFlight Distance 50m50m
Degrees of FreedomDegrees of Freedom 33
Size SpecificationsSize Specifications 10cm x 10cm x 10cm10cm x 10cm x 10cm
WeightWeight 100g100g
Ease of OperationEase of Operation 1 user1 user
Original DesignOriginal Design– 2 Flapping Wings2 Flapping Wings
– Controlled rotation of the wingsControlled rotation of the wings
– The wings use a track to slide back and forthThe wings use a track to slide back and forth
– DC Motor rotating causes the wings to flapDC Motor rotating causes the wings to flap
Dragon Fly InspiredDragon Fly Inspired
– 2 sets of wings in an 2 sets of wings in an
collapsing/expanding collapsing/expanding
X formation in an up X formation in an up
and down movementand down movement
– Tail rotorTail rotor
– DC Motor rotatingDC Motor rotating
– A larger toyA larger toy
Bird
Bat
- Actuated joints in all directions that cause the wings to curve in aiding to the flight
- Fast flapping - More fixed wing then bird but jointed
Design InspirationDesign Inspiration
The Delfly inspired design was chosen as our flapping wing The Delfly inspired design was chosen as our flapping wing MAV because of its ability to meet our customers needs and MAV because of its ability to meet our customers needs and has the highest probability to fulfill our design criteria and has the highest probability to fulfill our design criteria and complete all necessary functions.complete all necessary functions.
Gear Train and Wing Gear Train and Wing MechanismMechanism
Motor SelectionMotor Selection
Voltage RPM Current (free) Current (stall)
1.5V 10100 12.4mA 36.8mA
3.0V 20300 17.6mA 73mA
5.0V 32500 - -
– Tiny Pager MotorTiny Pager Motor by by SolarboticsSolarbotics
– Diameter = 4mm (0.158”)Diameter = 4mm (0.158”)– Length = 16.4mm (0.65”)Length = 16.4mm (0.65”)– Shaft Diameter = 0.66mm Shaft Diameter = 0.66mm
(0.026”)(0.026”)– Weight = 1g (.035oz)Weight = 1g (.035oz)
Great Planes ElectriFly 4Ch FM Rx 72MHz
Futaba FM Receiver Crystal Short R114F 72MHz High
Hitec Eclipse 7 7-Channel FM/4
Component SelectionComponent Selection
Battery: 110mAh 1S 3.7V LiPo: BMCX
Servos:
- Currently, servos scavenged from the E-Flite Microflyer will be used.
- Piezo-electrics were researched, but would require more power than we could supply.
Component SelectionComponent Selection
Wing Material SelectionWing Material Selection
- McMaster Polyester (PET) FilmMcMaster Polyester (PET) Film - Thickness: .001“Thickness: .001“- Width: 40“Width: 40“- Length: 10' Length: 10' - Tensile Strength: 28,000 psiTensile Strength: 28,000 psi- Clear, No Tint, Weather ResistantClear, No Tint, Weather Resistant
““Bones” Material SelectionBones” Material Selection
- McMaster Rigid Carbon Fiber Shape Round McMaster Rigid Carbon Fiber Shape Round TubeTube
- OD: .125“OD: .125“- ID: .074" ID: .074" - Length: 48" Length: 48" - Tensile Strength: 120,000 psiTensile Strength: 120,000 psi
11 Rudder used for TurningRudder used for Turning
22 Rudder used for increasing/decreasing Rudder used for increasing/decreasing pitchpitch
33 Top WingTop Wing
44 Bottom Wing with rod attachment Bottom Wing with rod attachment pointspoints
55 Base Frame structureBase Frame structure
66 MotorMotor
77 GearGear
88 Rod linkagesRod linkages
99 Pinion GearPinion Gear
1010 Rocker / Wing HolderRocker / Wing Holder
ConclusionConclusion
Future PlansFuture Plans
– Find Torque on the ShaftFind Torque on the Shaft
– ResizingResizing
– Find appropriate ServosFind appropriate Servos
– Finalize Design Calculations Finalize Design Calculations
– Finalize Manufacturing PlansFinalize Manufacturing Plans
Questions?Questions?
top related