matt brunelle nicole conway mike kennedy katy...

Matt Brunelle Nicole Conway Mike Kennedy Katy Wurman

Agenda

• Team Introduction and Roles • Problem Statement • Background Information • Device Use • Project Deliverables • Requirements • Test Plan • Photos • Results • Future Improvements • Questions

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

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

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.

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

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

Device Lifecycle Stored under

gangway

Installed in boat before

each use

Used in wet environment

Removed immediately after sailing

Taken out in pieces

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

Stakeholders • Adaptive sailing

programs/centers • Staff and volunteers • Disabled sailors or

potential sailors • RIT • MSD team

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

Importance Scale: 1 = High Priority, 2 = Medium Priority, 3 = Low Priority

Customer Requirements

Engineering Requirements

Test Plan Summary

CAD without seat

Securing Device – View Under Deck

In-Boat Photos

Starboard Side

Starboard Side 2

Aerial View

Chair Movement - Above

Chair Movement - Above

Chair Movement - Above

Chair Movement - Above

Chair Movement - Above

Chair Movement - Above

Chair Movement - Above

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

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

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

Thank you! To Kate Leipold, Elizabeth DeBartolo, Keith Burhans, Caitlyn

Ridgely, Piers Park Sailing Center, and RIT Senior Design

Questions? Thanks for coming!