Download presentation
Presentation is loading. Please wait.
Published byTamsyn Beasley Modified over 9 years ago
1
Project Specifications and Scope
2
Presentation Outline Team Introduction Project Overview Competition Specifications Mission Profile Score Analysis Subsystem Breakdown Project Timeline Summary
3
UAV Team Matthew Martin – Project Manager, ME Josiah Shearon – Mechanical Technical Lead, ME TJ Worden – Design Req. Specialist, ME David Neira – Treasurer, ME Josh Mellen – Electrical Technical Lead, ECE Ona Okonkwo – Secretary, ECE
4
Overview Develop a UAV which will satisfy the AIAA Design/Build/Fly Competition mission profile Competition Details Sponsors:Cessna, Raytheon Location:Tucson, AZ Design Report Submission Date:March 1, 2011 Competition Date:April 15-17, 2011
5
Aircraft Design Requirements SystemConstraint Aircraft Must weigh less than 55 lbs. Cannot be rotary wing or lighter-than-air Hand-launched 5-minute assembly Payload contained within UAV Wings Fixed-wing Must support 2.5 gram load at wing tip Propulsion Propeller driven Commercially available propeller Electric motor Battery ¾ lbs. maximum weight NiCad or NiMH 20 Amp max draw Fully insulated Commercially available cells
6
UAV Container UAV must be contained within this carry on bag No single dimension can be more than 22 inches Entire disassembled aircraft and tools must fit in suitcase (no transmitter)
7
Flight Course
8
Governing Equations
9
Mission One Dash to critical target Mission description 4 minute time limit Goal Achieve maximum number of laps in specified time Time starts during first hand launch attempt
10
M1: Path to Goal Aerodynamic Body Low Drag Lightweight High Thrust Battery Longevity High Maneuverability
11
Mission Two Ammo Re-Supply Mission description Payload flight Team selected/supplied steel bar(s) Goal Complete 3 laps Maximize payload-to-weight ratio
12
M2: Path to Goal High Lift Airfoil Design Adequate Structural Integrity Lightweight Aircraft Good Flight Stability Under Heavy Load
13
Mission Three Medical Supply Mission Mission description Payload flight Team selected quantity of golf balls Goal Complete 3 laps Transport maximum number of golf balls
14
M3: Path to Goal Maximize Cargo Bay Volume High Payload Capacity Lightweight Payload Stabilizer
15
Overall Flight Score Analysis Mission Priority 1. Mission 3 2. Mission 2 3. Mission 1 Projected Maximum Score Mission 1 = 1 Mission 2 = 1.5 Mission 3 = 2
16
UAV Team Specializations Matthew Martin – Overall Aircraft Layout Josiah Shearon – Materials Selection & Fabrication TJ Worden – Wing Design David Neira – Power & Propulsion Josh Mellen – Electronics & Control (Hardware) Ona Okonkwo – Electronics & Control (Software)
17
Electronics & Controls Design Battery High Energy Density Greater Longevity Less Volatile Low Recharge Time Transmitter Long Distance No Signal Interference FCC Requirement 72.01-72.99MHz Control Board Lightweight/Efficient Minimum One DC Motor (Propeller), Two Servos (Rudder/Elevator) Gyroscopic Feature Radio Fail-Safe Maneuver Kill Throttle, Roll Right, Yaw Right, Nose Up Desired Characteristics
18
Electronics & Controls Design Battery Selection NiMH Long Lasting Chemically Stable Quick Charge Transmitter Selection Spektrum DX6i No Signal Interference Meets all FCC Requirements Options/Selection
19
Power & Propulsion Systems Motor Efficient Optimal Power Generation Light Weight Low Current Draw Propulsion Optimal RPM/Torque High Thrust Light Weight Low Drag Desired Characteristics
20
Power & Propulsion Systems Motor Brushless Low Weight High Efficiency Ideal RPM/Torque Gear/Belt Reduction Increases Output RPM Maintains High Torque Propulsion Ducted Fan High Thrust, Low Drag Heavy Weight Propeller Light Weight Drag Due To Vortex Generation Options/Selection
21
Wing Design High Aerodynamic Efficiency (L/D) Moderate Wing Loading High Lift At Low Speeds Low Stall Speed Hand Launched Stable Flight Moderate Maneuverability Desired Characteristics
22
Wing Design Wing Parameters Wing Span Planform Area Aspect Ratio C L /C D Wing Section Control Surfaces Wing Layout Sweep Diahedral Wing Configuration Twist Taper Wingtip Design Options/Selection
23
Materials Selection & Fabrication Light Weight Ideal Yield Strength Stiff in Bending Simple To Manufacture Desired Characteristics
24
Materials Selection & Fabrication Chosen Materials: 1.CFRP Loading Tension 2.Wood Loading Longitudinal
25
Materials Selection & Fabrication Hybrid Structures Sandwich Light Weight Resistant to Bending Resistant to Buckling Shape Factors I-Beam Rectangle Hollow Shape Options/Selection
26
Overall Layout High Storage Volume Capacity Low Drag Optimal Center of Gravity Adequate Maneuverability Fulfillment of Design Requirements Safety and Size Ease of Assembly Desired Characteristics
27
Overall Layout Options/Selection Fuselage Lowest Drag Coefficient Body Lines Smooth/Sharp Landing Gear Retractable/Fixed Weight Distribution Compact/Dispersed Subsystem Integration Propulsion Configuration Single/Multiple Motors Front/Back Driven Wing Configuration Main/Tail Spacing Wing Location
28
Summary Develop aircraft with the following features: High Storage Capacity Lightweight Heavy Payload Capacity Adequate Speed/Maneuverability February 20, 2011 Finish Fabrication of UAV Submit Design Report Competition: April 15-17, 2011
29
Questions?
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.