Integrative STEM Lesson for Drones · 2017-08-14 · Integrative STEM Lesson for Drones ......

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

•  tslove@umes.edu

•  Mr. Jonathan Moore •  jwmoore2@umes.edu

•  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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