Rc dragonfly pp

Best Drones to Buy Best Drones to Buy 20162016

MotivationMotivation

A majority of the members are pursuing A majority of the members are pursuing the aerospace option.the aerospace option.

Interested to learn and understand the Interested to learn and understand the dynamics of a helicopter.dynamics of a helicopter.

The The RC Dragonfly posed as an posed as an appropriate challenge for 4 group appropriate challenge for 4 group members.members.

How the RC Dragonfly WorksHow the RC Dragonfly Works Helicopters generate lift Helicopters generate lift

by creating a pressure by creating a pressure differential across the differential across the bladeblade

The motion of the swash The motion of the swash plate regulates the plate regulates the forward, backward, left & forward, backward, left & right motionright motion

Yaw is controlled by the Yaw is controlled by the speed of the tail rotorspeed of the tail rotor

How the RC Dragonfly Works con’t..How the RC Dragonfly Works con’t..

Flybars work in Flybars work in conjunction with the conjunction with the swash plate to guide swash plate to guide the roll & pitchthe roll & pitch

Servo motors control Servo motors control the motion of the the motion of the swash plateswash plate

This is a fixed pitch This is a fixed pitch model, meaning the model, meaning the main rotors are rigid main rotors are rigid to the shaft.to the shaft.

Major ComponentsMajor Components Battery Tray Battery Tray Tail RotorTail Rotor Main Chassis and Main Chassis and

Landing GearLanding Gear Main RotorMain Rotor Swash PlateSwash Plate BodyBody

Battery TrayBattery Tray Mirror, extrude, and Mirror, extrude, and

cut.cut. Basic constraints Basic constraints

such as axis align, such as axis align, datum plane offset datum plane offset and mate was used.and mate was used.

Tail RotorTail Rotor

Revolve, extrude, mirror, shell methods were implemented in modeling.Revolve, extrude, mirror, shell methods were implemented in modeling. Pin connections.Pin connections. Gear connections made in mechanism modeGear connections made in mechanism mode

Chassis and Landing GearChassis and Landing Gear

Mirror, extrude, cut, sweep protrusions.Mirror, extrude, cut, sweep protrusions. Axis align, datum plane offset, and mate.Axis align, datum plane offset, and mate. Intricate angles were measured to fully constrain the landing gear and Intricate angles were measured to fully constrain the landing gear and

support beamssupport beams

Main RotorMain Rotor Contains complex Contains complex

series of constraints series of constraints including pin, bearing including pin, bearing and ball joint.and ball joint.

Simple methods of Simple methods of modeling such modeling such extrude, cut and extrude, cut and mirror were mirror were implemented.implemented.

Swash PlateSwash Plate

Helicopter BodyHelicopter BodyOutlined digital pictures of body with Style Outlined digital pictures of body with Style Tool, Mirror, Shell, and Extrudes to model the Tool, Mirror, Shell, and Extrudes to model the main body.main body.Cut out of windshield, color, and reassemble.Cut out of windshield, color, and reassemble.

Problems EncounteredProblems Encountered

Constraining servo motorsConstraining servo motors Replicating swash plate movementReplicating swash plate movement Parts needing to be re-measured Parts needing to be re-measured Unit correctionsUnit corrections

Full AnimationFull Animation

Final AssemblyFinal Assembly

Thank YouThank You

Thank you Ray for all your help & Thank you Ray for all your help & motivation this semester.motivation this semester.