Sponsored by: National Science Foundation Project Members: Angela Marcuccilli -ME Brad Johnson -ME...
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Transcript of Sponsored by: National Science Foundation Project Members: Angela Marcuccilli -ME Brad Johnson -ME...
Sponsored by: National Science Foundation
Project Members: Angela Marcuccilli -MEBrad Johnson -MEBryan Fleury –MEYash Singh -MEDavid Ferguson –ISE/Lead
Description Coaches and athletes in the Genesee Region of Special
Olympics New York are interested in adding bocce to the selection of sports
Many athletes lack the strength and/or mobility to be able to throw or roll the balls used for bocce.
The customer envisions a product that will be adaptable for athletes who have the use of at least one hand and can grip a ball.
Resulting device will make the game of bocce accessible to athletes who normally do not get to participate in the Special Olympics.
Bocce Ball
High Level Customer Needs Assist in rolling pallina and bocce balls
Maintain skill of game
Low transfer/setup time
High portability
Simple
S.O. Approved Bowling Ramp
Engineering Specifications Velocity
≥ 2.77 m/s Weight
<102 Lbs Setup Time
< 3 mins Transfer Time
< 2 mins Accuracy/Precision
Within one ball distance Safety
>2.77 m/s
Concept Summary V-Channel Ramp
Potential energy Placement on ramp determines distance
Swivel BaseAllows aiming in a 15° bi direction arcSupports Profile
Damper SystemRestricts repeatability
Protective Case
Concept
Concept Side View
Unique Damper Subsystem
System Architecture
RAMPBOCCE COURT
HANDLEBAR
DAMPER SWIVELBRAKE
Ball Ball
Squeeze B
rake
Lever
Aim Ramp
High Risk AssessmentRisks
Distance the pallina travels (wet/dry court)
Sensitivity: Ball placement on the ramp
ManufacturingComposite Material
Critical Item: Unique Damper System
Mitigation Design for highest
coefficient and farthest distance
Sensitivity: Analysis done in simulation and physical setup
Old concept: Use V-shaped aluminum w/ same profile
Use simple lock/unlock system
Current State of Design Design meets all customer needs Design meets engineering specifications.
Full scale testing needed to verify. On target to come in under $1500 budget
with a total build cost of $620. MSD 1 Schedule: Currently on schedule. MSD 2 Schedule: Completed for 11 Weeks Confident in overcoming actual friction on
bocce court.
Milestone Schedule for MSDII Week 2
Composite Mold Finished Week 4
Composite ramp provenSubsystem completed
Week 6Prototype built
Week 8 Proven System w/ documentation
References "Lifting." CDC. National Institute for Occupational Safety and
Health. 22 Jan. 2008 <http://www.cdc.gov/Niosh/pot_lift.html>.
"Modifications & Adaptations." Special Olympics. Joseph P. Kennedy Jr. Foundation. 21 Feb. 2008 <http://www.specialolympics.org/Special+Olympics+Public+Website/English/Coach/Coaching_Guides/Bowling/Teaching+Sport+Skills/Modifications+and+Adaptations.htm>.
Piercy, Jacob. "How to Play Bocce." Images.Stltoday.Com. Post Dispatch. 21 Feb. 2008 <http://images.stltoday.com/stltoday/multimedia/bocce.gif>.
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