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SOLO SOCCER TRAINER

SOLO SOCCER TRAINER. Team 16: Mechanical Engineering Dalhousie University Senior Design Project Supervisor: Dr. Warkentin Dec. 4 th 2012. Agenda. Team Roster. Project background. 3.5 Billion Fans. Oldest & Universal Sport. Vital Component. Ref: 1,2,3. Project background.

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SOLO SOCCER TRAINER

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  1. SOLO SOCCER TRAINER Team 16: Mechanical Engineering Dalhousie University Senior Design Project Supervisor: Dr. WarkentinDec. 4th 2012

  2. Agenda

  3. Team Roster

  4. Project background 3.5 Billion Fans Oldest & Universal Sport Vital Component Ref: 1,2,3

  5. Project background • Penalty kick stat: • Only 12% goalie save rate! Our project will attempt to aid in the solo soccer training process to improve the chances of successfully saving a goal. Ref: 4

  6. How’s it different?? • Many “sports” machines. • Ref: 5,6,7

  7. How’s it different?? • Many “sports” machines. • Previous design projects. • Ref: 8,9

  8. How’s it different?? • Many “sports” machines. • Previous design projects. • Differences: • Largest object launched • Only the goalie • Randomized • Automatic • Self Feed • Ref: 10

  9. DESIGN REQUIREMENTS

  10. criteria • The device should be able to launch the soccer ball into 5 set launch points (top left, top right, bottom left, bottom right and center). • The device should be able to launch a soccer ball to a random order of set points.

  11. criteria • The device should be able to launch a soccer ball to a random order of set points. • The device should be able to launch the soccer ball into 5 set launch points (top left, top right, bottom left, bottom right and center). • The device should be able to launch from the penalty line—36 ft (11 m) from net. 36 ft

  12. criteria • The device should be able to launch a soccer ball in a random manner. • The device should be able to launch the soccer ball into 5 set launch points (top left, top right, bottom left, bottom right and center). • The device should be able to launch from the penalty line—36 ft (11 m) from net. • The device should be able to be set up by a single person. • The device should be transportable by truck and movable a single person. • The cost to build device should be no more than $2000 CND. • The device should operate at a reasonable shot interval of no more than 20 seconds. • The device should be safe.

  13. Velocities & angles Top Corners: V =19 m/s θ = 17° Bottom Corners: V =18 m/s θ = 5° Side view

  14. Velocities & angles Top View 36 ft 18° 18°

  15. TIMEOUT: • General Design Idea Dual Spinning Disks Soccer Ball

  16. TESTING

  17. Phase one: Compression

  18. Phase one: Compression 18

  19. Phase Two: Deformation

  20. Phase Two: Deformation • Ffriction Fpull • Fdeformation • (μs + κ)FN ≈ Ffriction+ Fdeformation= Fpull

  21. Phase Two: Deformation

  22. TIMEOUT: • Deformation Relation Fdeformation ≈ function of the shapes. Ffriction ≈ function of materials. FBD of kinetic system

  23. ANALYSIS

  24. Dead Centre FBD =βV Fthrust = Fcoulomb+ Fviscous Fkinetic Fdeformation

  25. Friction & Velocity β slope • Ref 11 : US Dept of Transportation: Friction: Analytical and Field Investigation

  26. Forces & work • ∑Fthrust = ∑ Fcoloumb + ∑ Fviscous+ ∑ Fdeformation

  27. Required rpm

  28. DESIGN • Mechanical

  29. Final design • Frame • 1.5x1.5x.188 steel or aluminum tubing • Wheels • Overall Dimensions: • LxWxH48"x40"x27" • Motors • Actuators • Feed Mechanism • Mobility • Locking Wheels

  30. Mechanical : Tires • Cheap energy storage • Radius effects width • Radius/Mass effect energy • Rated at our speeds • Opportunity for tuning • Ref: 12

  31. Mechanical : Motors • Energy source • Shot recovery • Launch speed • 2 Motors (Spin?) • AC (Plug In) • Electrically Reversible (VFD) • 0-1800 RPM • 0.5HP Ref: 13

  32. Mechanical : Actuators • Stroke • 12” • Yaw • -23° to +23° • Stroke • 9” • Pitch • 0° to 20°

  33. Mechanical : Feed • Gear Motor • Lead Screw • Rail Design • Slider

  34. DESIGN • Electrical & Control

  35. Control system

  36. RANDOMLY SELECT TARGET ON NET PARAMETER LOOK-UP TABLE: LAUNCH MOTOR SPEED YAW ACTUATOR LENGTH PITCH ACTUATOR LENGTH START SET LAUNCH MOTORS ANGULAR VELOCITIES COMPARE ACTUAL EXTENDED LENGTH TO DESIRED VALUE (PITCH ANGLE) MEASURE EXTENDED LENGTH (PITCH ANGLE) MICROCONTROLLER LOGIC OUTPUTS TO DRIVER SYSTEMS COMPARE ACTUAL EXTENDED LEGNTH TO DESIRED VALUE (YAW ANGLE) MEASURE EXTENDED LENGTH (YAW ANGLE) SINGLE BALL IS LAUNCHED SET PITCH ACTUATOR EXTENDED LENGTH ENGAGE LOADING MECHANISM (LEAD SCREW) SET YAW ACTUATOR EXTENDED LENGTH RETURN TO START

  37. Control feedback

  38. Safety Considerations • Emergency Stop. • Safe Guarding. • Tire Enclosure • Electrical Enclosure • Ref: 14

  39. Budget: Electrical

  40. Budget: mechanical

  41. Further Considerations • FEM Analysis. • Building. • Physical Testing. • Practise, Practise, Practise! • Ref: 4

  42. Summary • One of a kind device. • No need for “extra” user. • Random • Automatic • Self Feed • Ample initial testing. • Great challenge for the winter! • Website & Contact • http://poisson.me.dal.ca/~dp_12_16/

  43. Thanks to : Mechanical Engineering Department Shell Canada Dr. Militzer Dr. Warkentin

  44. Special Thanks to : Dr. Bauer Blair Nickerson Jesse Keane Peter Jones John Macdonald

  45. References • http://multipletext.com/2011/8-soccer-in-ancient-china.htm • http://soccerstl.net/2012/09/28/slu-billikens-host-uca-for-homecoming-saturday/slu-billikens-soccer-fans/ • http://tallhorsewines.wordpress.com/2010/04/21/soccer-goalies-should-wear-red/ • http://www.footy.dk/2012/09/26/video-arets-redning/soccer-goalie-trying-to-block-goal/ • http://www.justbaseball.us/Qstore/Qstore.cgi?CMD=011&PROD=1129084852 • http://www.sports-inter.com/en/football/jugs-football-machine-6662.details.html • http://www.fitness-sports.co.uk/tennis/TENNIS-TNTM-2.html • http://poisson.me.dal.ca/~dp_11_02/ • http://poisson.me.dal.ca/~dp_08_06/ • http://www.academy.com/webapp/wcs/stores/servlet/Product_10151_10051_347881_-1 • http://www.fhwa.dot.gov/publications/research/infrastructure/bridge/05083/appendf.cfm • http://www.canadiantire.ca/AST/browse/4/Auto/Towing/TrailerTires.jsp • http://www.gallantmotor.com/acvsdc • http://banat4today.blogspot.ca/2011/09/boys-will-be-boys.html • http://www.cox.com/support/cable/nopic_gothere.asp • http://www.google.com.ng/local/trader/listing/-/6ad652a88a7f42ec/_b7b61055202e8df1_

  46. Questions?

  47. Navigation Table • Introduction • Project Background(#4&5) • Not your average Launching Machine(#8) • Requirements • Criteria(#10-12) • Initial Velocity & Angles(#13 &14) • Testing • Phase One: Compression(#16 &17) • Phase Two: Deformation(#18-20) • Friction(#25) • Backup Slides • Analysis • Kinetic FBD(#22-24) • Energy Balance(#26-27) • Design • Final Design(#29) • Mechanical(#30 - 33) • Electrical(#34 - 37) • Safety(#38) • Conclusion • Budget(#39 & 40) • Further Considerations(#41) • Summary (#42)

  48. Back up slides • Kinematic Equations • Top Corner Analysis • Bottom Corner Analysis • Drag • Thrust Force • AC VFD • DC Diagram • Custom Hub • AC Power

  49. Kinematic equations

  50. Why ac power?? • Availability at test locations • Cost • Ref: 15, 16

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