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Group 11- ASME Design CompetitionFinal Design Review
• Alicia Christie
• Desmond Bourgeois
• Toddrick Ruff
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Topics Covered
• Overview of Competition• Designs Selected• Expandable Body• Free-Body Diagram Calculations• Rock Collector with Actuators• Three-Wheel Design with Actuators• Lifting Box to Clear Barrier
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Overview of Design Competition
Schematic of Test Course
•Optimize Score
•Weight
•Power used (mAh)
•Time
•Accuracy
•Follow Competition Rules
•Size (14.5 x 6.5 x 6.5 in)
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Decision from Last Presentations
3 – Wheel DesignRock Collector
Mechatronics, Ariel University Center
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Expandable Body
Locks when fully extended
Body needs to extend by 4.34 in: (2 x y) = 4.34, with overlap and distance
y
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Free Body Diagram- Vehicle Climbing Barrier
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Rock Collector
Axel“False” Floor
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Rock Collector Actuation(Doors)
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Rock Collector Actuation(Rock Ejection)
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3 Wheel Operating Principle(Recap)
Assembled View
Outer axel
Inner axel
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3 Wheel Actuation
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Rock Collector Lifting Fixture
• Problem– Creating space for the Rock Collector to pass
over objects
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Solutions
• Pulley System or Gearing System– Use actuators or motors to raise height of Rock
Collector• Drawbacks
– Weight, Spacing, Interference with other components
• Modify a Transmission for the use of one motor for two functions– Drawbacks
• Code, Weight, Spacing, Intrinsic mechanics
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Hinge Design
• Passive Method– Operates by utilizing the robot’s forward
motion
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Prototype Procedure
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Thanks ToSponsors
American Society of Mechanical Engineers
Boeing
Individuals
Dr. Carl Moore
Dr. Dave Cartes
Dr. Chiang Shih
Dr. Daudi Waryoba