Integrative STEM Lesson for Drones Dr. Tyler S. Love and Mr. Jonathan Moore 10/21/16
Meet The Presenters • Tyler S. Love, Ph.D. • Assistant Professor, Coordinator of T&E
Education Program
• Jonathan Moore • Senior – T&E Education
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Presentation Overview 1. Types of UAVs 2. UAV Safety and Regulations 3. Materials and Cost 4. Designing and 3D Printing A Drone 5. Alternatives to 3D Printing 6. Testing, Troubleshooting and Demonstration 7. Integrating STEM Concepts 8. Questions and Discussion
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Types of UAVs • UAV = Unmanned Aerial Vehicles • UAS = Unmanned Aircraft Systems 1. Multi Rotor 2. Fixed Wing 3. Helicopter
Hartman & Bland (2016) 4
UAV Applications 1. Military – Reconnaissance 2. Agriculture – Surveying 3. Construction – Safety monitoring,
surveying, topographical maps 4. Delivery of Goods – Amazon, Virginia
Tech Chipotle 5. Various Career Opportunities
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UAV Research at UMES • Chris Hartman – Aviation
Science Program in collaboration with Department of Agriculture
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• K-12 Outreach - Collaboration with NASA UAS Competitions
• TEECA Competitions
UAV Regulations • FAA defines aircraft as, “Device used or
intended to be used for flight in the air.” • Drones <0.55 pounds (250g) must be
registered with the FAA • Altitude and Airspace restrictions • Ex. Restricted around DC region
• Pilot Certification in some cases • http://knowbeforeyoufly.org/education-use/ • https://www.faa.gov/uas/
Hartman & Bland (2016) 7
UAV Safety 1. Safety Glasses worn by all (COMAR) 2. Don’t overcharge batteries 3. Establish and enforce a Safety Zone 4. Create Safety Checklist 5. Blade Guards when possible, disconnect power until
ready 6. Debrief with entire group 7. Establish flight communication protocol 8. UAV safety activities
• Hartman & Bland (2016) 8
Materials and Cost
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Hubsan Quadcopter Part Cost
Motors* $10.00*
Control Board $19.00
Remote Control* $13.00*
Propellers (5 sets) [buy extra or can 3D print from Thingiverse] $6.00
Batteries (set of 5)* $15.00*
USB Battery Charger (charges up to 6 batteries at once)* $7.00*
Overall Cost for 1 Drone* $70.00*
http://www.instructables.com/id/Super-Light-Quadcopter/?ALLSTEPS
Designing the Drones • Parameters: 57-65mm between motors
• Motors: 7mm diameter • Centralized balance is key
• Chunk into various parts 10
Student Example: SolidWorks
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Student Example: SolidWorks
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Student Example: SolidWorks
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Student Example: SolidWorks
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Student Example: AutoCAD
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Student Example: AutoCAD
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3D Printing the Drones • Thingiverse: Thing 435484 or 681232 • Low Quality Print – Hollow & lighter weight • Assemble Parts, Convert to STL file
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Don’t Have a 3D Printer? No Problem!
• What cheap alternative materials could you use?
• Perfect for prototyping!
Sutton, Busby, & Kelly (2016) 18
Testing and Troubleshooting • The Wright Brother’s first flight lasted only 12
seconds and went 120 feet
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Testing and Troubleshooting
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Testing and Troubleshooting • The Wright Brother’s first flight lasted only 12
seconds and went 120 feet
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Testing and Troubleshooting • Propellers – specific pitch & installation
location • Soldering – extremely difficult • Motors – hot glue or they will spin • Controller – Sync and adjust propeller control
as needed 22
Demonstration
• https://www.youtube.com/watch?v=wgzhRAFHt0U
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Integrating STEM Concepts • Dronecurriculum.net
• Free Sample Unit (see handout)
• Science: Bernoulli’s Principle, Equilibrium, Aerodynamics, Lift, Drag, Acceleration, Momentum
• Math: Pythagorean Theorem, Lift, Drag, Acceleration, Momentum
• Technology: Aerospace Engineering, Materials Processing, Engineering Design, Electronics
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Integrating STEM Concepts
25 Maley (1984)
Integrating STEM Concepts
26 Maley (1984)
Integrating STEM Concepts
27 Maley (1984)
Integrating STEM Concepts: Example Questions
1. A drone with a mass of 4 lbs. is lifting a small box with a force of 5 newtons. What is the acceleration of the drone? (Hint: 1 lb = 0.454 kg).
2. After weighing your drone, calculate its momentum. Assume the velocity is 0.75m/s. (Must convert weight to kilograms) [1g = 0.001kg].
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Questions and Discussion • Contact Info • Dr. Tyler Love
• Mr. Jonathan Moore • [email protected]
• Thank You!
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References Hartman, C., & Bland, G. (2016). Aviation practices for safer drone flights:
Understanding and mitigating the risks. Technology and Engineering Teacher, 76(2), 13-15.
Maley, D. (1984). Math/science/technology projects for the technology teacher. Reston, VA: ITEA. Retrieved from https://www.umes.edu/Tech/Maley1984MathScienceTech.pdf
Sutton, K. G, Busby, J. R., & Kelly, D. P. (2016). Multicopter design challenge: Design, fly, and learn. Technology and Engineering Teacher, 76(2), 8-12.
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