matt brunelle nicole conway mike kennedy katy...
TRANSCRIPT
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Matt Brunelle Nicole Conway Mike Kennedy Katy Wurman
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Agenda
• Team Introduction and Roles • Problem Statement • Background Information • Device Use • Project Deliverables • Requirements • Test Plan • Photos • Results • Future Improvements • Questions
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Team Introduction and Roles
Member Major Role Matthew Brunelle Mechanical Engineer Engineer
Nicole Conway Mechanical Engineer Engineer Michael Kennedy Mechanical Engineer Engineer
Katy Wurman Industrial Engineer Project Leader
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P14031 Problem Statement
• Current State o A jib transfer bench was created in Spring 2013 (P13031) that is heavy,
expensive, labor-intensive to assemble, and accommodating of a strict size constraint present at the time.
• Desired State o A jib transfer system that enables a jib trimmer to move transversely across the
width of the sailboat, without the use of their legs or core muscles.
• Project Goals o A fully-functional prototype that is:
• lighter • cheaper • easier to assemble and manufacture
• Constraints o Designed for use with the Sonar class of sailboats o Completely mechanical solution o Designed for ease of reproducibility o Cannot require alteration of the boat or cause damage
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What’s a jib? • The smaller triangular sail
towards the bow (front) of the boat
• In downwind sailing, it acts to provide a greater total sail surface area for the wind to act upon
• In upwind sailing, it acts as an airfoil, while also funneling more air onto the mainsail, and therefore helps with the overall forward boat speed.
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P14031 Problem Statement
• Current State o A jib transfer bench was created in Spring 2013 (P13031) that is heavy,
expensive, labor-intensive to assemble, and accommodating of a strict size constraint present at the time.
• Desired State o A jib transfer system that enables a jib trimmer to move transversely across the
width of the sailboat, without the use of their legs or core muscles.
• Project Goals o A fully-functional prototype that is:
• lighter • cheaper • easier to assemble and manufacture
• Constraints o Designed for use with the Sonar class of sailboats o Completely mechanical solution o Designed for ease of reproducibility o Cannot require alteration of the boat or cause damage
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P13031: Past Iteration • For use with Sonar class
sailboat • Allows disabled people
to sail • 270 lb weight capacity • Heavy (125 lbs) • Labor intensive to
assemble o Multiple people required
• Not ideal for small-scale production
• Many custom parts
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Device Lifecycle Stored under
gangway
Installed in boat before
each use
Used in wet environment
Removed immediately after sailing
Taken out in pieces
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Additional Project Deliverables
• Functional jib transfer system that meets the customer’s requirements
• Detailed design plans for manufacturing
• Installation and assembly instructions
• User manual for proper device use
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Stakeholders • Adaptive sailing
programs/centers • Staff and volunteers • Disabled sailors or
potential sailors • RIT • MSD team
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Use Scenarios Considered • At Piers Park, youngest
users usually 18-20 yrs old • Typical users have:
o One-sided weakness • Stroke • Traumatic brain injury • Spinal injury
o Limited core strength • May need secure harness
o High-functioning quadriplegic • Still have some grip
strength o Ability to be used in
conjunction with existing stability bar
via piersparksailing.org
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Importance Scale: 1 = High Priority, 2 = Medium Priority, 3 = Low Priority
Customer Requirements
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Engineering Requirements
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Test Plan Summary
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CAD without seat
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Securing Device – View Under Deck
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In-Boat Photos
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Starboard Side
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Starboard Side 2
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Aerial View
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Chair Movement - Above
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Chair Movement - Above
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Chair Movement - Above
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Chair Movement - Above
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Chair Movement - Above
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Chair Movement - Above
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Chair Movement - Above
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Results A design that: A design that includes:
• Is 59% lighter • 79% less expensive • Is significantly easier to
build • Requires only one part to
be machined • Is 50% quicker to install
into the boat, and requires only one included tool to do this
• Is more compatible with a salt water environment
• Detailed BOM • Detailed drawings • Easy-to-follow build
instructions • Easy-to-follow assembly
instructions • All of these are freely
accessible to the public
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Future Improvements • Further reduce cost • Eliminate the machined part (analyze and re-design
the braking/locking mechanism)
• Analyze the exact spectrum of disabilities that users may have in order to account for specific ergonomic changes and address each disability in the most efficient way possible
• Incorporate additional movement assists to device
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What’s Next? • Gate Review • July 7th: Present at 7th
World Congress of Biomechanics in Boston, MA
• July 9th: Deliver to
customer – Piers Park Sailing Center
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Thank you! To Kate Leipold, Elizabeth DeBartolo, Keith Burhans, Caitlyn
Ridgely, Piers Park Sailing Center, and RIT Senior Design
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Questions? Thanks for coming!